TOREX XCM520 User Manual

XCM520 Series
600mA Synchronous Step-Down DC/DC Converter + Dual LDO Regulator
GENERAL DESCRIPTION
The XCM520 series is a multi chip module which comprises of a 600mA driver transistor built-in synchronous step–down DC/DC converter and a dual CMOS LDO regulator. The device is housed in small USP-12B01 package which is ideally suited for space conscious applications.
The XCM520 can replace this dual DC/DC to eliminate one inductor and reduce output noise. The DC/DC converter with a built-in 0.42ΩP-channel MOS and a 0.52ΩN-channel MOS provides a high efficiency, stable power supply up to 600mA to using only a coil and two ceramic capacitors connected externally. The highly accurate, low noise, dual CMOS LDO regulator includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase compensation circuits internally. The series is also fully compatible with low ESR ceramic capacitors. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption.
■APPLICATIONS
Close-proximity wireless transfer Module
TYPICAL APPLICATION CIRCUIT
FEATURES
<DC/DC Convertor Block>
Driver Tr ansistor : 0.42 P-channel MOS Built-in Switching Tran sistor : 0.52Ω N-channel MOS Built-in Input Voltage Range : 2.7V ~ 6.0V Output Voltage : 2.3V(V High Efficiency : 86% (TYP.) * Output Current : 600mA Oscillation Frequency : 3.0MHz (±15%) Soft-Start : Built-In Soft-Start
Current Limiter Circuit
Control : Fixed PWM, Auto PWM/PFM
*Performance depends on external components and wiring on PCB wiring.
: Constant Current & Latching
<Dual LDO Regulator Block>
Maximum Output Current Dropout V oltage : 100mV @ 100mA Operating Voltage Range Output Voltages : 1.8V(V High Accuracy : ±2%(V Low Power Consumption Stand-by Current : Less than 0.1μA(TYP.) High Ripple Rejection : 70dB @1kHz Low Output Noise Operating Temperature Range Low ESR Capacitor : Ceramic Capacitor Compatible Package : USP-12B01 Standard Voltage Combinations
XCM520AA01DR-G 1.8V 1.2V 2.3V
Environmentally Friendly
:
150mA (Limiter 300mA TYP.)
: 1.5V~6.0V
: 25μA (TYP.)
: -40℃~+85
: EU RoHS Compliant, Pb Free
)
OUT3
),1.2V(V
OUT1
), ±30mV (V
OUT1
: V
OUT1 VOUT2 VOUT3
ETR2427-004a
)
OUT2
OUT2
)
* The above circuit uses XCM520AA01DR-G. * The DC/DC block V
V
in this connection.
IN1
is connected to the dual LDO regulator
OUT3
1/32
(
(
XCM520 Series
PIN CONFIGURATIOIN
VOUT2
EN2
VIN1
VIN2
PGND
1
VOUT2
VOUT1
12
VOUT1
XC6401
2
3
4
5
6
Lx
EN2
VIN
XC9235/9236
VSS
EN1
EN/MODEVIN
AGNDPGND
VOUT3Lx
TOP VIEW)
11
10
9
8
7
VSS
EN1
EN3
AGND
VOUT3
PIN No XCM520 XC6401 XC9235/XC9236
1 V
V
OUT2
OUT2
2 EN2 EN2
3 V
4 V
V
IN1
V
IN2
IN
IN
5 PGND PGND 6 Lx Lx
7 V
V
OUT3
OUT
8 AGND AGND 9 EN3 CE
10 EN1 EN1
11 VSS V
12 V
V
OUT1
SS
OUT1
12
V
T
U
O
1
V
S
S
E
11
E
N
1
10
N
/
3
M
D
E
O
9
8
V
A
S
S
7
V
U
O
T
3
*1
*2
1
V
U
O
T
2
2
N
2
E
3
V
I
N
1
V
I
N
2
4
V
S
S
D
5
L
x
6
NOTE: * The two heat-sink pads on the back side are electrically isolated in the package. *1: The pad of the regulator should be V *2: The pad of the DC/DC should be V * The DC/DC ground pin (No. 5 and 8) should be connected for use. * The two pads are recommended to open on the board, but care must be taken for
voltage level of each heat-sink pad when they are electrically connected.
TOP VIEW)
PIN ASSIGNMENT
PIN No XCM520 FUNCTIONS
1 V
Voltage Regulator Output2
OUT2
2 EN2 Voltage Regulator ON/OFF Control 2
3 V
4 V
Voltage Regulator Power Input
IN1
DC/DC Power Input
IN2
5 PGND DC/DC Power Ground
6 Lx DC/DC Inductor Pin
7 V
DC/DC Output Voltage
OUT3
8 AGND DC/DC Analog Ground
9 EN3 DC/DC ON/OFF Control
10 EN1 Voltage Regulator ON/OFF Control 1
11 VSS Voltage Regulator Ground
12 V
Voltage Regulator Output Voltage 1
OUT1
SS
level.
SS
level.
2/32
X
p
,
)
PRODUCT CLASSIFICATION
CM520
Series
Ordering Information XCM520①②③④⑤⑥-⑦
DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION
①② ③④
⑤⑥-⑦
(*1)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
(*2)
The device orientation is fixed in its embossed tape pocket. For reverse orientation, please contact your local Torex sales office or
re
resentative. (Standard orientation: ⑤R-
Output Voltage combination
(*1)
Options
Packages
Taping Type
(*2)
- -
DR-G USP-12B01
Reverse orientation: ⑤L-
See the chart below
See the chart below
DESIGNATOR①②(Combination of XC6401 series and XC9235/XC9236 series
=3.0MHz
OSC
DESCRIPTION
①②
AA
COMBINATION OF EACH IC
XC6401FF**XC9235A**D
Fixed PWM, f
DESIGNATOR③④(Output Voltage
V
③④
01 1.8 1.2 2.3
(VR_1ch) V
OUT1
(VR_2ch) V
OUT2
OUT3
(DC/DC)
3/32
XCM520 Series
BLOCK DIAGRAMS
* XC9235 control scheme is a fixed PWM because that the “CE/MODE Control Logic” outputs a low level signal to the “PWM/PFM Selector”.
XC9235A
XC6401FF
*Diodes inside the circuit are an ESD protection diode and a parasitic diode.
MAXIMUM ABSOLUTE RATINGS
PAR AMETER SYMBOL RATINGS UNITS
V
Voltage V
IN1
V
Current I
OUT
V
Voltage V
OUT
EN1,EN2 Voltage V
V
Voltage V
IN2
Lx Voltage VLX -0.3~V
V
Voltage V
OUT3
EN3 Voltage V
6.5 V
IN1
OUT1+IOUT2
OUT1
EN1
*1 700
/ V
OUT2
/ V
V
EN2
-0.36.5 V
IN2
-0.36.5 V
OUT3
-0.36.5 V
EN3
VSS-0.3~V
*2
mA
+0.3 V
IN1
-0.36.5 V
SS
+0.36.5 V
IN2
Lx Current ILX ±1500 mA
USP12-B01 150
OUT2
)×I
*3
OUT2
Pd
800 (1ch operate)
mW
600 (both 2ch operate)
Topr -40~+85 Tstg -55~+125
}
Power Dissipation
USP12-B01
(PCB mounted)
Operating Temperature Range
Storage Temperature Range
*1. Rating is defined as a total of VR1 and VR2 in the VR bloc.
*2. Pd > { (V
*3. The power dissipation figure shown is PCB mounted. Please refer to page 41 for details. Also, the power dissipation value above is
for each channel.
- V
)×I
+(V
IN1
OUT1
OUT1
- V
IN1
4/32
X
ELECTRICAL CHARACTERISTICS (Continued)
XCM520AA/AC (DC/DC BLOCK) V
OUT3
= 2.3V, f
= 3.0MHz, Ta=25
OSC
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage V
Operating Voltage Range V
Maximum Output Current
UVLO Voltage
Supply Current
Stand-by Current
Oscillation Frequency
PFM Switching Current
PFM Duty Limit DTY
Maximum Duty Ratio D
Minimum Duty Ratio D
Efficiency
(*2)
Lx SW "H" ON Resistance 1 Lx SW "H" ON Resistance 2
Lx SW "L" ON Resistance 1 Lx SW "L" ON Resistance 2
Lx SW "H" Leak Current
Lx SW "L" Leak Current
Current Limit
(*9)
(*5)
(*5)
I I
Output Voltage
Temperature
Characteristics
(V
EN "H" Level Voltage
EN "L" Level Voltage
EN "H" Current
EN "L" Current
OUT3
2.7 - 6.0 V
IN2
I
OUT3MAX
V
UVLO
IDD
I
STB
f
OSC
I
PFM
LIMIT_PFM
MAX
MIN
EFFI
R
V
LxH
R
V
LxH
R
V
LxL
R
V
LxL
LEAKH
LEAKL
I
V
LIM
V
/
OUT3
・△
topr)
OUT3
V
ENH
V
EN3L
I
V
EN3H
I
V
EN3L
Soft Start Time tSS
Integral Latch Time t
Short Protection
Threshold Voltage
V
LAT
SHORT
Test conditions: Unless otherwise stated, V
When connected to external components, V
= V
IN2
= 5.0V, I
EN3
When connected to external components, V
IN2=VOUT3(E)
V
EN3
= V
IN2
+2.0V, V
, V
OUT3
OUT3
EN3
= 0V ,
= 30mA
(*8)
=1.0V
Voltage which Lx pin holding “L” level
V
V
IN2=VEN3
= 5.0V, V
IN2
=5.0V,V
EN
OUT3=VOUT3(E)
= 0V, V
OUT3
×1.1V
= V
OUT3(E)
When connected to external components,
= V
V
IN2
OUT3(E)
+ 2.0V , V
=1.0V, V
EN3
When connected to external components, V
= V
IN2
V
= V
EN3
= V
V
IN2
= V
V
IN2
OUT3(E)
= (C-1) I
IN2
= 5.0V, V
EN3
= 5.0V, V
EN3
+ 2.0V, V
OUT3
OUT3
OUT3
= V
EN3
= 1mA
= V
= V
, I
IN2
(*11)
200 300 %
OUT3 (E)
OUT3 (E)
When connected to external components, V
= V
EN3
IN2
IN2
IN2
IN2
V
IN2
V
IN2
IN2
V
OUT3
-40℃ ≦ Topr 85
V
OUT3
V
IN2
= V
= 5.0V, V
EN3
= V
= 3.6V, V
EN3
= V
=5.0V
EN3
= V
= 3.6V
EN3
= V
= 5.0V, V
OUT3
= V
= 5.0V, V
OUT3
= V
= 5.0V, V
EN3
= 30mA
=0V, Applied voltage to V
Voltage changes Lx to “H” level
V
=0V, Applied voltage to V
OUT3
Voltage changes Lx to “L” level
= V
EN3
=5.0V, V
=5.0V, V
EN3
IN2
IN2
+ 1.2V, V
OUT3 (E)
OUT3
OUT3
(*4)
- 0.45 0.66 Ω
(*4)
- 0.52 0.77 Ω
EN3
EN3
OUT3
OUT3
= 0V, V
OUT3
= 0V, ILX = 100mA
= 0V, ILX = 100mA
= 0V, LX= 0V - 0.01 1.0 μA = 0V, LX= 5.0V - 0.01 1.0 μA
= V
OUT3 (E)
EN3,
(*10)
EN3,
(*10)
= 0V - 0.1 0.1 μA
= 0V - 0.1 - 0.1 μA
OUT3
When connected to external components, V
= 0V → V
EN3
V
= V
IN2
EN3
Short Lx at 1 resistance Sweeping 1 resistance,
level within 1ms
= 5.0V, V
IN2
OUT3 (E)
, V
IN2
= 5.0V,
V
OUT3
OUT3
V
OUT3
,
V
=
IN2
V
voltage which Lx becomes “L”
OUT3
= Nominal voltage
= 1mA
= 0.8 × V
(*6)
V
= 5.0V,
EN3
Short Lx at
(*1, *10)
× 1.1V
= 100mA
OUT3
(*11)
= 1mA
OUT3
× 0.9V
× 1.1V
= 100mA
(*7)
(*3)
- 0.35 0.55 Ω
(*3)
- 0.42 0.67 Ω
× 0.9V 900 1050 1350 mA
OUT3 (E)
2.254 2.300 2.346 V
600 - - mA
1.00 1.40 1.78 V
- 46 65
- 0 1.0
2550 3000 3450 kHz
170 220 270 mA
100 - - %
- - 0 %
- 86 - %
- ±100 - ppm/
0.65 - 6.0 V
VSS - 0.25 V
0.5 0.9 2.5 ms
1.0 - 20.0 ms
0.675 0.900 1.125 V
μA ③ μA
NOTE: *1: Including hysteresis width of operating voltage.
*2: EFFI = { ( output voltage×output current ) / ( input voltage×input current) }×100 *3: ON resistance (Ω)= (V
- Lx pin measurement voltage) / 100mA
IN
*4: Design value *5: When temperature is high, a current of approximately 10μA (maximum) may leak. *6: Time until it short-circuits V
with GND via 1Ωof resistor from an operational state and is set to Lx=0V from current limit pulse
OUT3
generating.
*7: V
OUT3 (E)
+1.2V<2.7V, V
=2.7V.
IN2
*8: When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
*9: Current limit denotes the level of detection at peak of coil current.
*10: "H"=V
- 1.2V, "L"+ 0.1V - 0.1V
IN2~VIN2
*The electrical characteristics above are when the voltage regulator block is in stop.
CM520
Series
CIRCUIT
② ② ②
5/32
XCM520 Series
ELECTRICAL CHARACTERISTICS (Continued)
●XCM520 Series VR Block (VR1/VR2: EN_ Active High, without Pull-down resistors) Ta=25
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage V
Maximum Output Current
Load Regulation
Dropout Voltage
(*5)
Supply Current ISS V
Stand-by Current I
Input Regulation
(*8)
(V
Input Voltage V
Output Voltage
Temperature Characteristics
Ripple Rejection
(*9)
(Topr ・V
PSRR
Limit Current I
Short Current I
EN "H" Level Voltage V
EN "L" Level Voltage V
EN "H" Level Current I
EN "L" Level Current I
(*2)
I
OUT(E)
I
V
OUTMAX
1mA≦I
V
OUT
Vdif1 I
Vdif2 I
V
STB
V
/ V
OUT
V
IN1
V
SHORT
ENH
)
OUT
1.5 - 6.0 V -
IN1
/
OUT
) -40℃≦Topr85
OUT
V
LIM
V
1.30 - 6 V
ENH
- - 0.25 V
ENL
V
V
ENL
=30mA
OUT
IN1=VOUT (T)
IN1=VEN=VOUT (T)
IN1=VOUT (T)
+1.0V≦V
OUT(T)
V
EN=VIN1
V
=[V
IN1
OUT(T)
=30mA, f=1kHz
I
OUT
IN1=VOUT (T)
IN1=VOUT (T)
IN1=VEN=VOUT (T)
= V
IN1
OUT (T)
OUT
OUT
I
OUT
+1.0]VDC+0.5Vp-pAC
NOTE:
*1 : Unless otherwise stated, V
*2 : V
(I.e. the output voltage when "V
*3 : Please see the Voltage Chart for each voltage of V
*4 : V
*5 : Vdif={V
*6 : V
*7 : V
*The electrical characteristics above are when the DC/DC block is in stop.
: Effective output voltage
OUT(E)
: Nominal output voltage
OUT(T)
(*7)
(*6)
-V
INa
OUTa
=A voltage equal to 98% of the output voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input.
OUT1
=The input voltage when V
IN1
IN1=VOUT(T)
}
+1.0V
OUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT value).
. If VOUT (T)1.45V, MIN VOUT (T) - 30mV, MAX VOUT (T) + 30mV
OUT(E)
appears as input voltage is gradually decreased.
OUT1
OUTPUT VOLTAGE CHART
Voltage Chart 1
NOMINAL OUTPUT
VOLTAGE
OUTPUT VOLTAGE (V)
CIRCUIT
(*3)
V
1.5V
OUT(T)
<1.5V -0.03
V
OUT(T)
X0.98
(*3)
V
OUT (T)
(*4)
+ 1.0V 150 - - mA
100mA
OUT
- 15 60 mV
=30mA E-1 mV
=100mA E-2 mV
+ 1.0V, I
=0mA - 25 45
OUT
+ 1.0V, VEN=VSS - 0.01 0.10
6.0V
IN1
, I
=30mA
OUT
=30mA
- 0.01 0.20 % / V
-
±100
- 70 - dB
+ 1.0V, VEN=V
+ 1.0V, VEN=V
- 300 - mA
IN1
- 30 - mA
IN1
X1.02
+0.03
(*3)
(*3)
-
V
⑩ ⑩
μA μA
ppm/
⑩ ⑩ ⑭ ⑭
+ 1.0V -0.10 - 0.10
+ 1.0V, VEN=VSS -0.10 - 0.10
μA μA
E-1 E-2
DROPOUT VOLTAGE 1 (mV) DROPOUT VOLTAGE 2 (mV)
V
Vdif1 Vdif2
V
OUT(T)
MIN. MAX. TYP. MAX. TYP. MAX.
OUT
1.20 1.170 1.230 65 300 200 400
1.80 1.764 1.836 45 65 140 180
6/32
X
TYPICAL APPLICATION CIRCUIT
DC/DC BLOCK f
C
: 1μF (Ceramic)
IN1
: 1μF (Ceramic)
C
L1
: 1μF (Ceramic)
C
L2
L : 1.5μH (NR3015 TAIIYO YUDEN)
: 4.7μF (Ceramic)
C
IN2
: 10μF (Ceramic)
C
L3
OPERATIONAL EXPLANATION
=3.0MHz
OSC
CM520
Series
DC/DC BLOCK
The DC/DC block of the XCM520 series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator, phase compensation circuit, output voltage adjustment resistors, P-channel MOSFET driver transistor, N-channel MOSFET switching transistor for the synchronous switch, current limiter circuit, UVLO circuit and others. (See the block diagram above.) By using the error amplifier, the voltage of the internal voltage reference source is compared with the feedback voltage from the V
pin through split resistors, R1 and R2. Phase compensation is performed on the resulting error amplifier output, to input a
OUT3
signal to the PWM comparator to determine the turn-on time during PWM operation. The PWM comparator compares, in terms of voltage level, the signal from the error amplifier with the ramp wave from the ramp wave circuit, and delivers the resulting output to the buffer driver circuit to cause the Lx pin to output a switching duty cycle. This process is continuously performed to ensure stable output voltage. The current feedback circuit monitors the P-channel MOS driver transistor current for each switching operation, and modulates the error amplifier output signal to provide multiple feedback signals. This enables a stable feedback loop even when a low ESR capacitor such as a ceramic capacitor is used ensuring stable output voltage.
<Reference Voltage Source> The reference voltage source provides the reference voltage to ensure stable output voltage of the DC/DC converter.
<Ramp Wave Circuit> The ramp wave circuit determines switching frequency. The frequency is fixed internally and can be selected from 1.2MHz or
3.0MHz. Clock pulses generated in this circuit are used to produce ramp waveforms needed for PWM operation, and to synchronize all the internal circuits.
<Error Amplifier> The error amplifier is designed to monitor output voltage. The amplifier compares the reference voltage with the feedback voltage divided by the internal split resistors, R1 and R2. When a voltage is lower than the reference voltage is fed back, the output voltage of the error amplifier increases. The gain and frequency characteristics of the error amplifier output are fixed internally to deliver an optimized signal to the mixer.
7/32
XCM520 Series
OPERATIONAL EXPLANATION (Continued)
<Current Limit> The current limiter circuit of the XCM520 series monitors the current flowing through the P-channel MOS driver transistor connected to the Lx pin, and features a combination of the current limit mode and the operation suspension mode.
When the driver current is greater than a specific level, the current limit function operates to turn off the pulses from the Lx pin
at any given timing.
When the P-channel MOS driver transistor is turned off, the limiter circuit is then released from the current limit detection state. At the next pulse, the P-channel MOS driver transistor is turned on. However, the P-channel MOS driver transistor is
immediately turned off in the case of an over current state.
When the over current state is eliminated, the IC resumes its normal operation.
The IC waits for the over current state to end by repeating the steps ① through ③. If an over current state continues for a few
milliseconds and the above three steps are repeatedly performed, the IC performs the function of latching the OFF state of the P-channel MOS driver transistor, and goes into operation suspension mode. Once the IC is in suspension mode, operations can be resumed by either turning the IC off via the EN3 pin, or by restoring power to the V not mean a complete shutdown, but a state in which pulse output is suspended; therefore, the internal circuitry remains in operation. The current limit of the XCM520 series can be set at 1050mA at typical. Besides, care must be taken when laying out the PC Board, in order to prevent miss-operation of the current limit mode. Depending on the state of the PC Board, latch time may become longer and latch operation may not work. In order to avoid the effect of noise, the board should be laid out so that input capacitors are placed as close to the IC as possible.
ILx
OUT3
V
Lx
Limit < a few milliseconds
Limit<ms
Limita few milliseconds
Limit>数ms
VEN3
VIN1
<Short-Circuit Protection> The short-circuit protection circuit monitors the internal R1 and R2 divider voltage from the V is accidentally shorted to the ground and when the FB point voltage decreases less than half of the reference voltage (Vref) and a current more than the I
flows to the driver transistor, the short-circuit protection quickly operates to turn off and to
LIM
latch the driver transistor. In latch state, the operation can be resumed by either turning the IC off and on via the EN3 pin, or by restoring power supply to the V When sharp load transient happens, a voltage drop at the V circuit protection may operate in the voltage higher than 1/2 V
IN2
pin.
pin is propagated to FB point through CFB, as a result, short
OUT3
voltage.
OUT3
<UVLO Circuit> When the V output caused by unstable operation of the internal circuitry. When the V
IN2 pin voltage becomes 1.4V or lower, the P-channel MOS driver transistor is forced OFF to prevent false pulse
pin voltage becomes 1.8V or higher, switching
IN2
operation takes place. By releasing the UVLO function, the IC performs the soft start function to initiate output startup operation. The soft start function operates even when the VIN pin voltage falls momentarily below the UVLO operating voltage. The UVLO circuit does not cause a complete shutdown of the IC, but causes pulse output to be suspended; therefore, the internal circuitry remains in operation.
pin. The suspension mode does
IN2
Current Limit LEVEL
0mA
VSS
Restart
pin. In case where output
OUT3
8/32
X
OPERATIONAL EXPLANATION (Continued)
Voltage Regulator BLOCK
The voltage divided by resistors R1 and R2 is compared with the internal reference voltage by the error amplifier. The P-channel MOSFETs, which are connected to the VOUT pin, are then driven by the subsequent output signal. The output voltages at the VOUT pin is controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the EN pin's signal.
< Low ESR Capacitors >
With the XCM520 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that output capacitor (C with a capacitance value of at least 1μF. Also, please connect an input capacitor (C V
SS pin in order to ensure a stable power input.
< Current Limiter, Short-Circuit Protection >
The XCM520 series includes a combination of a fixed current limiter circuit and a fold-back circuit which aid the operations of the current limiter and circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the fold-back circuit start to operate, output voltage drops further and output current decreases. When the output pin is shorted, a current of about 30mA flows.
< EN Pins >
The IC's internal circuitry can be shutdown via the signal from the EN pin with the XCM520 series. In shutdown state, output at the V (please refer to the selection guide). Note that as the standard type's regulator 1 and 2 are both ' High Active/No Pull Down', operations will become unstable with the EN pin open. Although the EN pin is equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the EN pin input current will increase when the IC is in operation. We suggest that you use this IC with either a V specifications for the EN pin, the operational logic is fixed and the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry.
) is connected as close as possible to the output pins (VOUT) and the VSS pin. Please use an output capacitor
L
OUT pin will be pulled down to the VSS level via R1 and R2. The operational logic of the IC's EN pin is selectable
IN1 voltage or a VSS voltage input at the EN pin. If this IC is used with the correct
IN1) of 1μF between the VIN1 pin and the
CM520
Series
9/32
XCM520 Series
NOTES ON USE
<DC/DC BLOCK>
1. The XCM520 series is designed for use with ceramic output capacitors. If, however, the potential difference is too large between the input voltage and the output voltage, a ceramic capacitor may fail to absorb the resulting high switching energy and oscillation could occur on the output. If the input-output potential difference is large, connect an electrolytic capacitor in parallel to compensate for insufficient capacitance.
2. Spike noise and ripple voltage arise in a switching regulator as with a DC/DC converter. These are greatly influenced by external component selection, such as the coil inductance, capacitance values, and board layout of external components. Once the design has been completed, verification with actual components should be done.
3. As a result of input-output voltage and load conditions, oscillation frequency goes to 1/2, 1/3, and continues, then a ripple may increase.
4. When input-output voltage differential is large and light load conditions, a small duty cycle comes out. After that, 0%duty cycle may continue in several periods.
5. When input-output voltage differential is small and heavy load conditions, a large duty cycle comes out and may
continues100% duty cycle in several periods.
6. With the IC, the peak current of the coil is controlled by the current limit circuit. Since the peak current increases when dropout voltage or load current is high, current limit starts operation, and this can lead to instability. When peak current becomes high, please adjust the coil inductance value and fully check the circuit operation. In addition, please calculate the peak current according to the following formula:
Ipk = (V
IN2-VOUT3
L: Coil Inductance Value
f
: Oscillation Frequency
OSC
7. When the peak current which exceeds limit current flows within the specified time, the built-in P-channel MOS driver transistor turns off. During the time until it detects limit current and before the built-in P-channel MOS driver transistor can be turned off, the current for limit current flows; therefore, care must be taken when selecting the rating for the external components such as a coil.
8.
Depending on the state of the PC Board, latch time may become longer and latch operation may not work. In order to avoid
the effect of noise, the board should be laid out so that input capacitors are placed as close to the IC as possible.
9. Use of the IC at voltages below the recommended voltage range may lead to instability.
10. This IC should be used within the stated absolute maximum ratings in order to prevent damage to the device.
11. When the IC is used in high temperature, output voltage may increase up to input voltage level at no load because of the leak current of the P-channel MOS driver transistor.
12. The current limit is set to 1350mA (MAX.) at typical. However, the current of 1350mA or more may flow. In case that the current limit functions while the V ON, the potential difference for input voltage will occur at both ends of a coil. For this, the time rate of coil current becomes large. By contrast, when N-channel MOS driver transistor is ON, there is almost no potential difference at both ends of the coil since the V According to the repetition of this operation, and the delay time of the circuit, coil current will be converged on a certain current value, exceeding the amount of current, which is supposed to be limited originally. Even in this case, however, after the over current state continues for several ms, the circuit will be latched. A coil should be used within the stated absolute maximum rating in order to prevent damage to the device.
Current flows into P-channel MOS driver transistor to reach the current limit (ILIM).
The current of ILIM or more flows since the delay time of the circuit occurs during from the detection of the current limit to
OFF of P-channel MOS driver transistor.
Because of no potential difference at both ends of the coil, the time rate of coil current becomes quite small. Lx oscillates very narrow pulses by the current limit for several ms. The circuit is latched, stopping its operation.
)× OnDuty /(2×L×f
pin is shorted to the GND pin. Consequently, the time rate of coil current becomes quite small.
OUT3
OSC
) + I
OUT
pin is shorted to the GND pin, when P-channel MOS driver transistor is
OUT3
10/32
# ms
X
CM520
Series
NOTE ON USE (Continued)
13. In order to stabilize V
as close as possible to the V
voltage level and oscillation frequency, we recommend that a by-pass capacitor (CIN) be connected
IN2
IN2 and VSS pins.
14. High step-down ratio and very light load may lead an intermittent oscillation.
15. During PWM / PFM automatic switching mode, operating may become unstable at transition to continuous mode.
Please verify with actual design.
CH1:Lx 5V/div
CH2:V
20mV/div
OUT3
V
V
OUT3
IN2
=3.3V, f
=3.7V, I
OSC
OUT3
=1.2MHz
=100mA
<External Components>
L : 4.7μF(NR4018)
: 4.7μF(Ceramic)
C
IN2
: 10μF(Ceramic)
C
L3
16. Please note the inductance value of the coil. The IC may enter unstable operation if the combination of ambient temperature,
output voltage, oscillation frequency, and L value are not adequate. In the operation range close to the maximum duty cycle, The IC may happen to enter unstable output voltage operation even if using the L values listed below.
CH1:Lx 2.0V/div
CH2:V
OUT3
20mV/div
V
V
OUT3
=4.0V,I
IN2
=3.3V, f
OSC
OUT3
=1.2MHz
=180mA
<External Components>
L : 1.5μF(NR3015)
C
: 4.7μF(Ceramic)
IN2
: 10μF(Ceramic)
C
L3
The Range of L Value
f
V
OSC
3.0MHz
0.8V<V
1.2MHz
*When a coil less value of 4.7 μ H is used at
=1.2MHz or when a coil less value of 1.5μH is used
f
OSC
=3.0MHz, peak coil current more easily reach the
at f
OSC
current limit I
. In this case, it may happen that the IC
LMI
can not provide 600mA output current.
L Value
OUT
4.0V 1.0μH2.2μH
OUT3
V
2.5V 3.3μH6.8μH
OUT3
2.5V<V
4.7μH~6.8μH
OUT3
11/32
XCM520 Series
NOTE ON USE (Continued)
Note on use of pattern layouts
1. Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded.
2. The capacitor (C
When wiring impedance is high, noise propagation by output current or phase discrepancy occur which results in unstable operating. In this case, please reinforce V input capacitance C
3. With comparison to the separate product usage, the two chips are placed in adjacent in the package so heat generation
Is influenced each other. Please evaluate and verify in the actual design.
) should be connected as close as possible to the VIN and VSS pins.
IN
and VSS rails. If the operation is still unstable, please increase
IN
.
IN
Instructions of pattern layouts
1. In order to stabilize V
C
) be connected as close as possible to the V
L3
IN1・VIN2・VOUT1・VOUT2・VOUT3
IN1・VIN2・VOUT1・VOUT2・VOUT3
, we recommend that a by-pass capacitor (C
and VSS pin.
IN1・CIN2・CL1・CL2
2. Please mount each external component as close to the IC as possible.
3. Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit impedance.
4. V
AGNDPGNDVSS)ground wiring is recommended to get large area. The IC may goes into unstable operation
SS
as a result of VSS voltage level fluctuation during the switching.
5. Heat is generated because of the output current (I
) and ON resistance of driver transistors.
OUT
Reference Pattern Layout
E
X
O
T
VOUT
3
ND
A
G
O
D
E
M
EN
3
EN1
GN
D
VOUT
1
Ceramic Capacitor
セラミクコンデンサ
インダクタ
Inductor
CL3
CL1
L
IC
VOUT
Front
X
CM5
20
V
1
er..
O
USP12 B
Lx
ND G P
2 N
Cl
C
L2
2
EN2
VlN2
4
VlN1
ClN1
GND1
3
2
1
95
#
Back
12/32
X
TEST CIRCUITS
< Circuit No.1 >
< Circuit No.3 >
1μF
VIN2
EN3
AGND PGND
EN1
VSS
VOUT1
VOUT3
VIN1
EN2
VOUT2
< Circuit No.5 >
1μF
I
ENH
A
I
ENL
VIN2
EN3
AGND PGND
EN1
VSS
VOUT1
VOUT3
VOUT2
< Circuit No.7 >
1μF
VIN2
EN3
AGND PGND
EN1
VSS
VOUT1
VOUT3
VOUT2
< Circuit No.9 >
* External Components
L : 1.5μH (NR3015) 3.0MHz
4.7μH (NR4018) 1.2MHz
C
: 4.7μF (ceramic)
IN2
CL3 : 10μF (ceramic)
Lx
Lx
VIN1
EN2
Lx
VIN1
EN2
Wave Form Measure Point
Rpulldown
200Ω
I
LEAKH
A
I
LEAKL
Wave Form Measure Point
I
LAT
Rpulldown 1Ω
< Circuit No.2 >
A
1μF
< Circuit No.4 >
1μF
< Circuit No.6 >
1μF
< Circuit No.8 >
1μF
VIN2
EN3
AGND PGND
EN1
VSS
VOUT1
VIN2
EN3
AGND PGND
EN1
VSS
VOUT1
VIN2
EN3
AGND PGND
EN1
VSS
VOUT1
VIN2
EN3
AGND PGND
EN1
VSS
VOUT1
VOUT3
VOUT2
VOUT3
VIN1
VOUT2
VOUT3
VIN1
EN2
VOUT2
VOUT3
VIN1
VOUT2
EN2
EN2
VIN1
EN2
Lx
Lx
Lx
CM520
Series
Lx
100mA
V
Wave Form Measure Point
I
V
LIM
I
Lx
A
13/32
A
A
A
A
XCM520 Series
TEST CIRCUITS (Continued)
< Circuit No10 >
EN1/EN2
ctive HighEN = V ctive LowEN = VSS
IN1
, C
C
< Circuit No12 > < Circuit No13 >
IN1
: 1μF (ceramic)
L1, CL2
A
VIN2
EN3
AGND PGND
VIN1
EN1
EN2
VOUT3
VOUT1
VOUT2
VSS
Lx
EN1/EN2
Active High (pull-down, without resistance)
VR1 Supply Current, EN1=ON, EN2=OFF
VR2 Supply Current, EN1= OFF, EN2=ON
Active High: ON=V
Active Low: ON=V
, OFF=VSS
IN1
OFF=V
SS,
IN1
< Circuit No14 >
C
: 1μF (ceramic)
EN1/EN2
EN1”H” Level Current
EN1=V
Level
IN1
EN2”H” Level Current
Level
EN2=V
IN1
EN1”L” Level Current
EN1= V
EN2”L” Level Current
EN2=V
* The EN which is not measured is in operation sop mode.
Active High: V
Active Low: measuring V
SS
SS
SS
IN1
Level
IN1
< Circuit No11 >
EN1/EN2
ctive HighEN = VSS
ctive LowEN = V
V
=[V
(T)+1.0]VDC+0.5Vp-pAC
IN1
OUT
V
EN1/EN2
VR1 PSRR
EN1=ON, EN2=OFF
VR2 PSRR
EN1=OFF, EN2=ON
Active High: ON=V
Active Low: ON=V
IN1
A
VIN2
EN3
AGND PGND
VIN1
EN1
EN2
, OFF=VSS
IN1
, OFF=V
SS
VIN2
EN3
AGND PGND
VIN1
EN1
EN2
IN1
VOUT3
VOUT1
VOUT2
VSS
Lx
VOUT3
VOUT1
VOUT2
VSS
Lx
I
=30mA
OUT
CL1
I
=30mA
OUT
CL2
C
, CL2 : 1μF (ceramic)
L1
A
I
OUT1
V
A
I
OUT2
V
14/32
X
TYPICAL PERFORMANCE CHARACTERISTICS
DC/DC Block
(1) Efficiency vs. Output Current
V
=1.8V, f
OUT3
L=4.7μH(NR4018), C
100
PWM/ PFM A ut o mat i c Sw i t c hi n g
90
80
V
70
60
3.6V
IN2
= 4.2V
50
40
30
Efficency:EFFI(%)
20
10
0
0.1 1 10 100 1000
Output Current:I
(2) Output Voltage vs. Output Current
V
=1.8V, f
OUT3
L=4.7μH(NR4018), C
(V)
Output Volt age:V
2.1
2
1.9
OUT3
1.8
1.7
1.6
PWM/PF M Automat ic Switching C ontrol
1.5
0.1 1 10 100 1000
Output Current :I
(3) Ripple Voltage vs. Output Current
=1.8V, f
V
OUT3
OSC
L=4.7μH(NR4018), C
100
80
60
40
PWM Cont rol
V
4.2V,3. 6V
IN2
Ripple Voltage:Vr(mV)
20
0
0.1 1 10 100 1000 Output Current:I
=1.2MHz V
OSC
=4.7μF, CL3=10μF L=1.5μH(NR3015), C
IN2
100
90
80
PWM Control
V
= 4.2V
IN2
3.6V
(mA)
OUT3
=1.2MHz V
OSC
=4.7μF, CL3=10μF L=1.5μH(NR3015), C
IN2
V
4.2V, 3.6V
IN2
PWM Cont rol
(mA)
OUT3
70
60
50
40
30
Efficency:EFFI(%)
20
10
0
0.1 1 10 100 1000
2.1
2
(V)
1.9
OUT3
1.8
1.7
Output Voltage: V
1.6
1.5
0.1 1 10 100 1000
OUT3
PWM/PFM Automatic Switc hing Cont rol
V
3.6V
PWM/PFM Automatic Switchi ng C ontrol
=1.2MHz V
=4.7μF, CL3=10μF L=1.5μH(NR3015), C
IN2
100
80
PWM/PFM Automatic
Switching Control
4.2V
V
IN2
3.6V
(mA)
OUT 3
60
PWM Cont rol
V
4.2V, 3.6V
IN2
40
Ripple Voltage: Vr(mV)
20
0
0.1 1 10 100 1000
=1.8V, f
= 4.2V
IN2
Output Current:I
OUT3
Output Current:I
OUT3
Output Current :I
OSC
IN2
=1.8V, f
OSC
PWM C ontrol
=1.8V, f
=4.7μF, CL3=10μF
IN2
PWM/PF M Automat ic
Switching C ontrol
=3.0MHz
=4.7μF, CL3=10μF
PWM Control
V
= 4.2V
IN2
3.6V
(mA)
OUT3
=3.0MHz
=4.7μF, CL3=10μF
IN2
V
4.2V,3.6V
IN2
(mA)
OUT3
=3.0MHz
OSC
V
4.2V
IN2
3.6V
(mA)
OUT3
CM520
Series
15/32
XCM520 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
DCDC Block (Continued)
(4) Oscillation Frequency vs. Ambient Temperature
V
=1.8V, f
OUT3
L=4.7μH(NR4018), C
1.5
1.4
(MHz)
OSC
1.3
1.2
1.1
1
0.9
Oscillation Frequency :
0.8
-50-250 255075100
V
=3.6V
IN2
Ambient Temperature : Ta (℃)
(5) Supply Current vs. Ambient Temperature
V
=1.8V, f
OUT3
40
35
30
(μA)
DD
25
20
15
10
Supply C urrent : I
5
0
-50 -25 0 25 50 75 100
Ambient Temper ature : T a (℃)
(6) Output Voltage vs. Ambient Temperature (7) UVLO Voltage vs. Ambient Temperature
V
=1.8V, f
OUT3
2.1
2
(V)
1.9
OUT3
1.8
V
=3.6V
IN 2
1.7
Output Voltage : V
1.6
1.5
-50 -25 0 25 50 75 100
Ambient Temperature : Ta (℃)
=1.2MHz V
OSC
=4.7μF, CL3=10μF L=1.5μH(NR3015), C
IN2
3.5
3.4
3.3
(MHz)
OSC
3.2
3.1
3
2.9
2.8
2.7
2.6
Oscillation Frequency :
2.5
-50 -25 0 25 50 75 100
=1.2MHz V
OSC
40
35
30
V
=6.0V
V
IN 2
OSC
=4.0V
IN 2
=3.0MHz V
(μA)
DD
25
20
15
10
Supply C urrent : I
5
0
-50 -25 0 25 50 75 100
1.8
1.5
(V)
1.2
UVLO
0.9
0.6
UVLO Volt age : V
0.3
0
-50 -25 0 25 50 75 100
=1.8V, f
OUT3
VIN =3. 6V
Ambient Temperat ure : Ta (℃)
=1.8V, f
OUT3
V
IN2
Ambient T emperat ure : Ta (℃)
=1.8V, f
OUT3
Ambient T emperature : T a (℃)
=3.0MHz
OSC
=4.7μF, CL3=10μF
IN2
=3.0MHz
OSC
V
=6.0V
IN2
=4.0V
=3.0MHz
OSC
EN3= V
IN2
16/32
X
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
DCDC Block (Continued)
(8) EN "H" Voltage vs. Ambient Temperature (9) EN" L" Voltage vs. Ambient Temperature
V
=1.8V, f
OUT3
1.0
0.9
(V)
0.8
ENH
EN "H" Voltage: V
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-50 -25 0 25 50 75 100
V
=5.0V
IN2
V
Ambient Temperature: Ta (℃)
(10) Soft Start Time vs. Ambient Temperature
V
=1.8V, f
OUT3
OSC
L=4.7μH(NR4018), C
5
4
(ms)
SS
3
2
V
=3.6V
IN2
Soft Start Time : t
1
0
-50 -25 0 25 50 75 100
Ambient T emper ature : Ta (℃)
(11) "Pch / Nch" Driver on Resistance vs. Input Voltage
V
=1.8V, f
OUT3
OSC
1.0
(Ω)
LxL
0.9
,R
0.8
LxH
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Lx SW ON Resistance: R
0.0 0123456
Pch on Resistanc e
Input Voltage: V
=3.0MHz V
OSC
OUT3
1.0
0.9
0.8
(V)
0.7
ENL
V
IN2
0.6
0.5
0.4
IN2
=3.6V
0.3
0.2
EN "L" Voltage: V
0.1
0.0
-50 -25 0 25 50 75 100
Ambient Temperature: Ta (℃)
=3.0MHz V
=4.7μF, CL3=10μF L=1.5μH(NR3015), C
IN2
5
4
(ms)
SS
3
2
Soft St art T ime : t
1
0
-50-25 0 25 50 75100
OUT3
V
=3.6V
IN2
Ambient Temperature : Ta (℃)
=3.0MHz
Nch on Resistance
(V)
IN2
=1.8V, f
=5.0V
V
IN2
=1.8V, f
=3.0MHz
OSC
=3.6V
=3.0MHz
OSC
=4.7μF, CL3=10μF
IN2
CM520
Series
17/32
XCM520 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
DCDC Block (Continued)
(12) Load Transient Response V
=1.8V, f
OUT3
L=1.5μH(NR3015), C V
=3.6V, EN1=V
IN2
I
=1mA 100mA I
OUT3
1ch: I
: 50mV/div V
V
OUT3
=100mA 1mA I
I
OUT3
1ch: I
: 50mV/div V
V
OUT3
=3.0MHz(PWM Control)
OSC
=4.7μF(ceramic), CL3=10μF(ceramic), Topr=25
IN2
IN2
=1mA 300mA
OUT3
1ch: I
OUT3
OUT3
2ch 2ch
: 50mV/div
OUT3
50μs/div 50μs/div
=300mA 1mA
OUT3
1ch: I
OUT3
OUT3
2ch 2ch
: 50mV/div
OUT3
200μs/div 200μs/div
18/32
X
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block
(1) Output Voltage vs. Output Current
V
=1.8V, C
IN1
V
=0.8V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
Ta =2 5 , C
1.0
1.0
0.8
(V)
(V)
OUT
OUT
0.6
0.4
Output Voltage: V
0.2
Output Voltage: V
0.0
Topr= 85℃ = 2 5 ℃
    =-40℃
0 50 100 150 200 250 300 350
Output Current: I
Output Current: I
OUT
OUT
(mA)
(mA)
0.8
(V)
(V)
OUT
OUT
0.6
V
= 3.8V
    = 1.8V
0.4
Output Voltage: V
0.2
Output Voltage: V
0.0 0 50 100 150 200 250 300 350
V
=2.85V
V
=3.85V, C
IN1
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
Ta =2 5 , C
4.0
3.5
(V)
3.0
OUT
(V)
2.5
OUT
2.0
1.5
1.0
Output Voltage: V
Output Voltage: V
0.5
0.0
Topr= 85℃ = 2 5 ℃
    =-40℃
0 50 100 150 200 250 300 350
Output Current: I
Output Current: I
OUT
OUT
(mA)
(mA)
4.0
3.5
(V)
3.0
(V)
OUT
2.5
OUT
2.0
1.5
1.0
Output Voltage: V
Output Voltage: V
0.5
0.0 0 50 100 150 200 250 300 350
V
=3.0V
V
=4.0V, C
IN1
IN1
4.0
3.5
(V)
3.0
(V)
OUT
2.5
OUT
2.0
1.5
1.0
Output Voltage: V
Output Voltage: V
0.5
0.0
Topr= 8 5 ℃ = 2 5 ℃
    =-40℃
0 50 100 150 200 250 300 350
Output C urrent: I
OUT
=1μF(ceramic), CL=1μF(ceramic)
Output Current: I
OUT
OUT
(mA)
(mA)
(V)
(V)
OUT
Output Voltage: V
Output Voltage: V
OUT
Ta =2 5 , C
4.0
3.5
3.0
2.5
2.0     = 3.3 V
1.5
1.0
0.5
0.0
0 50 100 150 200 250 300 350
V
=0.8V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
= 6.0V
IN1
= 1.5V
Output Current: I
Output Current: I
V
=2.85V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
V
= 6 .0 V
IN1
OUT
OUT
(mA)
(mA)
= 4 .0 V
=3 .1 5 V
Output Current: I
Output Current: I
V
=3.0V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
V
= 6 .0 V
IN1
OUT
OUT
(mA)
(mA)
= 4 .0 V
Output Current: I
Output Current: I
OUT
(mA)
OUT
(mA)
CM520
Series
19/32
XCM520 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(1) Output Voltage vs. Output Current (Continued)
V
=4.0V, C
IN1
6.0
5.0
(V)
(V)
OUT
4.0
OUT
3.0
Topr= 85 ℃ = 2 5 ℃
    =-40℃
2.0
Output Voltage: V
1.0
Output Voltage: V
0.0 0 50 100 150 200 250 300 350
(2) Output Voltage vs. Input Voltage
Ta =2 5 , C
1.2
1.1
(V)
1.0
OUT
(V)
OUT
0.9
0.8
0.7
Output Voltage: V
0.6
Output Voltage: V
0.5
0.5 1.0 1.5 2 .0 2.5
Ta =2 5 , C
3.05
2.85
(V)
OUT
(V)
2.65
OUT
2.45
Output Voltage: V
2.25
Output Voltage: V
2.05
2.35 2.85 3.35
V
=5.0V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
Output Current: I
Output Curr ent: I
V
=0.8V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
OUT
I
OUT
OUT
(mA)
(mA)
=
0mA
= 30mA
=10 0 mA
Input Voltage: V
Input Voltage: V
V
=2.85V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
IN1
I
IN1
OUT
(V)
(V)
= 0 mA
= 3 0 mA
=1 0 0mA
Input Voltage: V
Input Voltage: V
IN1
(V)
(V)
IN1
V
=5.0V
OUT
Ta =2 5 , C
=1μF(ceramic), CL=1μF(ceramic)
IN1
6.0
5.0
(V)
(V)
OUT
OUT
4.0
3.0
V
= 6 .0 V
IN1
= 5 .3 V
2.0
Output Voltage: V
1.0
Output Voltage: V
0.0 0 50 100 150 200 250 300 350
Ta =2 5 , C
Output Current: I
Output Current: I
V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
OUT
=0.8V
OUT
(mA)
(mA)
0.90
0.85
(V)
OUT
(V)
0.80
OUT
0.75
I
OUT
Output Voltage: V
0.70
Output Voltage: V
= 30mA
=100mA
0.65
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Ta =2 5 , C
Input Voltage: V
Input Voltage: V
V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
=2.85V
IN1
IN1
(V)
2.95
2.90
(V)
OUT
(V)
2.85
OUT
2.80 I
=
OUT
Output Voltage: V
Output Voltage: V
2.75
= 3 0mA
=100mA
2.70
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage: V
Input Voltage: V
IN1
IN1
(V)
=
(V)
(V)
0mA
0mA
20/32
X
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(2) Output Voltage vs. Input Voltage (Continued)
Ta =2 5 , C
V
=3.0V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
3.2
3.0
(V)
OUT
(V)
2.8
OUT
2.6
Output Voltage: V
2.4
Output Voltage: V
2.2
2.5 3.0 3.5
Input Voltage: V
Input Voltage: V
Ta =2 5 , C
V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
5.2
5.0
(V)
(V)
OUT
OUT
4.8
4.6
Output Voltage: V
4.4
Output Voltage: V
4.2
4.5 5.0 5.5
Input Voltage: V
Input Voltage: V
(3) Dropout Voltage vs. Output Current
C
V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
1.0
0.8
0.6
0.4
0.2
Dropout Voltage: Vdif(mV)
Dropout Voltage: Vdif (mV)
0.0 0 50 100 150 200
Output Current: I
Output Cur rent: I
= 3 0 mA
IN1
=5.0V
= 30mA
IN1
=0.8V
Topr = 8 5℃     = 25℃     = -40℃
(mA)
OUT
OUT
Ta =2 5 , C
3.10
3.05
(V)
OUT
(V)
OUT
3.00
I
= 0 mA
OUT
2.95
=1 0 0mA
Output Voltage: V
2.90
Output Voltage: V
2.85
3.5 4.0 4.5 5.0 5.5 6.0
(V)
IN1
(V)
Ta =2 5 , C
5.10
5.05
(V)
(V)
OUT
OUT
5.00
=
I
OUT
=1 00mA
0mA
4.95
Output Voltage: V
4.90
Output Voltage: V
4.85
5.5 6.0
(V) Input Voltage: V
IN1
(V)
C
0.5
0.4
0.3
0.2
0.1
Dropout Voltage: Vdif(mV)
Dropout Voltage: Vdif (mV)
0.0 0 50 100 150 200
(mA)
V
=3.0V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
I
= 0 mA
OUT
= 3 0 mA
=1 0 0 mA
Input Voltage: V
Input Voltage: V
V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
IN1
=5.0V
(V)
IN1
(V)
I
OUT
= 30mA
(V)
Input Voltage: V
V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
IN1
IN1
=2.85V
(V)
Topr = 8 5 ℃     = 2 5 ℃     = - 4 0℃
Output Current: I
Output Current: I
OUT
OUT
(mA)
(mA)
=
0mA
=1 00mA
CM520
Series
21/32
XCM520 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(3) Dropout Voltage vs. Output Current (Continued)
0.5
0.4
C
V
=3.0V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
0.3
0.2
0.1
Dropout Voltage: Vdif(mV)
Dropout Voltage: Vdif (mV)
0.0 0 50 100 150 200
Output Current: I
Output Current: I
(4) Supply Current vs. Input Voltage
V
=0.8V
OUT
100
(μA)
SS
80
A)
SS
60
40
Supply Cullent: I
20
Supply Current: I
0
0123456
Input Voltage: V
Input Voltage: V
=3.0V
V
OUT
100
(μA)
SS
80
60
40
Supply Cullent: ISS(μA)
20
Supply Current: I
0
0123456
Input Voltage: V
Input Voltage: V
C
0.5
0.4
Topr=-40℃
    =25 ℃
0.3
    =85 ℃
0.2
0.1
Dropout Voltage: Vdif(mV)
Dropout Voltage: Vdif (mV)
0.0 0 50 100 150 200
(mA)
OUT
(mA)
OUT
100
80
A)
Topr= 85℃
       = 25℃
    =-40℃
(μA)
SS
Supply Cullent: I
SS
60
40
20
Supply Current: I
0
0123456
(V) Input Voltage: V
(V)
IN1
IN
100
80
A)
Topr= 85℃
       = 25℃
    =-40℃
(μA)
SS
Supply Cullent: I
SS
60
40
20
Supply Current: I
0
0123456
(V)
(V)
IN1
IN
V
=5.0V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
Topr= - 4 0 ℃
    =25℃     =85℃
Output Current: I
Output Current: I
V
=2.85V
OUT
Input Voltage: V
V
OUT
Topr= 85℃
       = 2 5℃
    =-40℃
Input Voltage: V
Input Voltage: V
(mA)
(mA)
OUT
OUT
Topr= 85℃
       = 25 ℃
    =-40℃
(V)
IN1
(V)
IN
=5.0V
(V)
(V)
IN1
IN
22/32
X
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(5) Output Voltage vs. Ambient Temperature
0.84
V
IN1
=1.8V, C
(V)
0.82
OUT
(V)
OUT
0.80
0.78
Output Voltage: V
Output Voltage: V
0.76
-50 -25 0 25 50 75 100
Ambient Temperature: Ta()
3.10
V
IN1
=4.0V, C
(V)
3.05
(V)
OUT
OUT
3.00
2.95
Output Voltage: V
Output Voltage: V
2.90
-50 -25 0 25 50 75 100
Ambient Temperature: Ta()
Ambient Temperature: Ta (℃) Ambient Temperature: Ta (℃)
(6) Supply Current vs. Ambient Temperature
30
28
A)
SS
26
(μA)
SS
24
Supply Cullent: I
22
Supply Current: I
20
-50 -25 0 25 50 75 100
Ambient Temperature: Ta()
Ambient Temperature: Ta (℃) Ambient Temperature: Ta (℃)
V
=0.8V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
OUT
I
= 0 mA = 1 0 mA = 3 0 mA
=100mA
Ambient Temperature: Ta (℃)
V
=3.0V
OUT
=1μF(ceramic), CL=1μF(ceramic)
IN1
OUT
I
= 0 mA = 1 0 mA = 3 0 mA
=100mA
V
=0.8V
OUT
V
=1.8V
IN1
V
=2.85V
OUT
V
=4.0V, C
IN1
=1μF(ceramic), CL=1μF(ceramic)
IN1
2.95
(V)
2.90
OUT
(V)
OUT
2.85
OUT
I
= 0 mA
2.80
Output Voltage: V
Output Voltage: V
= 1 0 mA = 3 0 mA =1 0 0mA
2.75
-50 -25 0 25 50 75 100
Ambient Temperature: Ta (℃)
Ambient Temperature: Ta()
V
=5.0V
OUT
V
=6.0V, C
IN1
=1μF(ceramic), CL=1μF(ceramic)
IN1
5.20
(V)
5.10
(V)
OUT
OUT
5.00
OUT
I
= 0 mA
= 1 0 mA
4.90
Output Voltage: V
Output Voltage: V
= 3 0 mA
=100mA
4.80
-50 -25 0 25 50 75 100
Ambient Temperature: Ta()
V
=2.85V
OUT
30
28
A)
SS
26
(μA)
SS
24
Supply Cullent: I
22
Supply Current: I
20
-50 -25 0 25 50 75 100
Ambient Temperature: Ta()
V
IN1
CM520
Series
=3.85V
23/32
XCM520 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(6) Supply Current vs. Ambient Temperature (Continued)
30
28
A)
SS
26
(μA)
SS
24
Supply Cullent: I
22
Supply Current: I
20
-50 -25 0 25 50 75 100
Ambient Temperature: Ta (℃)
Ambient Temperature: Ta()
(7) Input Transient Response
1.00
0.95
(V)
(V)
OUT
0.90
OUT
0.85
0.80
Output Voltage: V
0.75
Output Voltage: V
0.70
tr=tf=5μs, CL=1μF(ceramic), I
Input Voltage Input Voltage
Input Voltage
Output Voltage Output Voltage
Output Voltage
Time (200μs/div) Time (40μs/div)
1.00
0.95
(V)
(V)
OUT
0.90
OUT
0.85
0.80
Output Voltage: V
0.75
Output Voltage: V
0.70
tr=tf=5μs, CL=1μF(ceramic), I
Input Voltage
Output Voltage
Output Voltage
Time (40μs/div) Time (200μs/div)
V
=3.0V
OUT
V
=0.8V
OUT
200μs/div
=0.8V
V
OUT
Input Voltage
40μs/div
V
=100μA
OUT
OUT
=4.0V
IN1
=100mA
4
3
2
1
0
-1
-2
4
3
2
1
0
-1
-2
(μA)
Supply Current: I
(V)
(V)
(V)
(V)
OUT
OUT
IN1
IN
Input Voltage: V
Input Voltage: V
Output Voltage: V
Output Voltage: V
(V)
(V)
(V)
(V)
OUT
IN
OUT
IN1
Input Voltage: V
Input Voltage: V
Output Voltage: V
Output Voltage: V
30
28
A)
SS
26
SS
24
Supply Cullent: I
22
20
-50 -25 0 25 50 75 100
tr=tf=5μs, C
1.00
0.95
0.90
0.85
0.80
0.75
0.70
tr=tf=5μs, C
3.05
3.00
2.95
2.90
2.85
2.80
2.75
V
=5.0V
OUT
Ambient Temperature: Ta (℃)
Ambient Temperature: Ta()
V
=0.8V
OUT
=1μF(ceramic), I
L
OUT
Input Voltage
Output Voltage
40μs/div
V
=2.85V
OUT
=1μF(ceramic), I
L
Input Voltage
Input Voltage
Output Voltage
Output Voltage
OUT
200μs/div
V
=100μA
=6.0V
IN1
=30mA
4
3
2
1
0
-1
-2
6
5
4
3
2
1
0
(V)
(V)
IN1
IN
Input Voltage: V
Input Voltage: V
(V)
IN
(V)
IN1
Input Voltage: V
Input Voltage: V
24/32
X
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(7) Input Transient Response (Continued)
3.05
3.00
(V)
OUT
(V)
2.95
OUT
2.90
2.85
Output Voltage: V
2.80
Output Voltage: V
2.75
tr=tf=5μs, CL=1μF(ceramic), I
V
=2.85V
OUT
Input Voltage
Input Voltage
Output Voltage
Output Voltage
Time (40μs/div) Time (40μs/div)
40μs/div
OUT
=30mA
tr=tf=5μs, CL=1μF(ceramic), I
6
5
(V)
(V)
IN
4
3
2
Input Voltage: V
Input Voltage: V
1
0
3.05
3.00
(V)
(V)
OUT
2.95
OUT
IN1
2.90
2.85
Output Voltage: V
2.80
Output Voltage: V
2.75
3.20
3.15
(V)
OUT
(V) Output Voltage: V
3.10
OUT
3.05
3.00
Output Voltage: V
2.95
Output Voltage: V
2.90
tr=tf=5μs, CL=1μF(ceramic), I
V
=3.0V
OUT
Input Voltage
Input Voltage
Output Voltage
Output Voltage
Time (200μs/div)
200μs/div
=100μA
OUT
tr=tf=5μs, CL=1μF(ceramic), I
6
5
(V)
IN
4
(V)
3
2
Input Voltage: V
Input Voltage: V
1
0
3.20
3.15
(V)
(V)
OUT
3.10
OUT
IN1
3.05
3.00
Output Voltage: V
2.95
Output Voltage: V
2.90
3.20
3.15
(V)
OUT
(V)
3.10
OUT
3.05
3.00
Output Voltage: V
2.95
tr=tf=5μs, CL=1μF(ceramic), I
2.90
V
=3.0V
OUT
=100mA tr=tf=5μs, CL=1μF(ceramic), I
OUT
6
5
Input Voltage
Input Voltage
(V)
IN
4
(V)
IN1
3
2
Output Voltage
Output Voltage
Input Voltage: V
1
Input Voltage: V
0
Time (40μs/div) Time (200μs/div)
40μs/div
(V)
OUT
(V)
OUT
Output Voltage: V
Output Voltage: V
5.20
5.15
5.10
5.05
5.00
4.95
4.90
V
=2.85V
OUT
Input Voltage
Input Voltage
Output Voltage
Output Voltage
40μs/div
V
=3.0V
OUT
Input Voltage
Input Voltage
Output Voltage
Output Voltage
Time (40μs/div)
40μs/div
V
=5.0V
OUT
Input Voltage
Input Voltage
Output Voltage
Output Voltage
200μs/div
OUT
OUT
=100μA
OUT
=100mA
=30mA
6
5
4
3
2
1
0
6
5
4
3
2
1
0
8
7
6
5
4
3
2
CM520
Series
(V)
IN
(V) Input Voltage: V
IN1
Input Voltage: V
Input Voltage: V
(V)
IN
(V) Input Voltage: V
IN1
Input Voltage: V
(V)
IN1
Input Voltage: VIN(V)
25/32
XCM520 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(7) Input Transient Response (Continued)
5.20
5.15
(V)
OUT
(V) Output Voltage: V
5.10
OUT
5.05
5.00
Output Voltage: V
4.95
Output Voltage: V
4.90
tr=tf=5μs, CL=1μF(ceramic), I
(8) Load Transient Response
V
0.90
0.80
(V)
(V)
OUT
OUT
0.70
=1.8V, tr=tf=5μs, C
IN1
0.60
Output Voltage: V
0.50
0.40
50mA
10mA
V
2.95
=4.0V, tr=tf=5μs, C
IN1
2.85
(V)
OUT
(V)
2.75
OUT
2.65
Output Voltage: V
Output Voltage: V
2.55
2.45
50mA
10mA
V
=5.0V
OUT
=30mA
OUT
(mA)
(mA)
OUT
OUT
Output Current: I
Output Current: I
(mA)
OUT
(mA)
OUT
Output Current: I
Output Current: I
(V)
(V)
OUT
OUT
Output Voltage: V
Output Voltage: V
(V)
(V)
OUT
OUT
Output Voltage: V
Output Voltage: V
(V)
(V)
OUT
OUT
Output Voltage: V
Output Voltage: V
5.20
5.15
5.10
5.05
5.00
4.95
4.90
0.90
0.80
0.70
0.60
0.50
0.40
2.95
2.85
2.75
2.65
2.55
2.45
8
7
Input Voltage
Input Voltage
(V)
IN
6
(V)
IN1
5
4
Output Voltage
Output Voltage
Input Voltage: V
3
Input Voltage: V
2
Time (40μs/div) Time (40μs/div)
40μs/div
=0.8V
V
OUT
=1μF(ceramic)
IN1=CL
250
200
Output Voltage Output Voltage
Output Voltage
150
Output Current
Output Current
100
50
0
Time (40μs/div) Time (40μs/div)
40μs/div
V
=2.85V
OUT
=1μF(ceramic)
IN1=CL
250
200
Output Voltage
Output Voltage
150
100
Output Current
Output Current
50
0
Time (40μs/div) Time (40μs/div)
40μs/div
tr=tf=5μs, CL=1μF(ceramic), I
V
=1.8V, tr=tf=5μs, C
IN1
100mA
10mA
V
=4.0V, tr=tf=5μs, C
IN1
100mA
10mA
V
=5.0V
OUT
Input Voltage
Input Voltage
Output Voltage
Output Voltage
40μs/div
V
=0.8V
OUT
IN1=CL
Output Voltage
Output Current
Output Current
40μs/div
V
=2.85V
OUT
Output Voltage
Output Voltage
Output Current
Output Current
40μs/div
IN1=CL
=100mA
OUT
=1μF(ceramic)
=1μF(ceramic)
8
7
6
5
4
3
2
250
200
150
100
50
0
250
200
150
100
50
0
(V)
IN
(V)
IN1
Input Voltage: V
Input Voltage: V
(mA)
OUT
(mA)
OUT
Output Current: I
Output Current: I
(mA)
OUT
(mA)
OUT
Output Current: I
Output Current: I
26/32
X
t
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(8) Load Transient Response (Continued)
(V)
OUT
(V)
OUT
3.10
3.00
2.90
V
=4.0V, tr=tf=5μs, C
IN1
2.80
Output Voltage: V
Output Voltage: V
2.70
2.60
50mA
10mA
5.10
V
=6.0V, tr=tf=5μs, C
IN1
5.00
(V)
OUT
(V)
4.90
OUT
4.80
Output Voltage: V
4.70
Output Voltage: V
4.60
50mA
10mA
(9) Ripple Rejection Rate
V
=1.8VDC+0.5Vp-pAC, I
IN1
80
60
40
20
Ripple Rejection Ratio: PSRR(dB)
Ripple Rejection Ratio: PSRR (dB)
0
0.01 0.1 1 10 100
Ripple Frequency: f(kHz)
Ripple Frequency: f(kHz) Ripple Frequency: f(kHz)
V
=3.0V
OUT
=1μF(ceramic)
IN1=CL
250
Output Voltage
Output Voltage
200
(mA)
150
OUT
(mA)
OUT
(V)
OUT
(V)
OUT
100
Output Current
Output Current
50
Output Current: I
Output Voltage: V
Output Voltage: V
Output Current: I
0
Time (40μs/div) Time (40μs/div)
40μs/div
V
=5.0V
OUT
=1μF(ceramic)
IN1=CL
250
Output Voltage
Output Voltage
200
(mA)
150
(mA)
OUT
OUT
(V)
OUT
(V)
OUT
100
Output Current
Output Current
50
Output Current: I
Output Voltage: V
Output Voltage: V
Output Current: I
0
Time (40μs/div) Time (40μs/div)
40μs/div
V
=0.8V
OUT
=30mA, CL=1μF(ceramic)
OUT
V
V
=4.0V, tr=tf=5μs, C
IN1
3.10
3.00
2.90
100mA
2.80
2.70 10mA
2.60
V
=6.0V, tr=tf=5μs, C
IN1
5.10
5.00
4.90
100mA
4.80
4.70 10mA
4.60
=3.85VDC+0.5Vp-pAC, I
IN1
80
60
40
20
Ripple Rejection Ratio: PSRR(dB)
Ripple Rejection Ratio: PSRR (dB)
0
0.01 0.1 1 10 100
V
=3.0V
OUT
=1μF(ceramic)
IN1=CL
Output Voltage
Output Voltage
Output Current
Output Curren
40μs/div
V
=5.0V
OUT
=1μF(ceramic)
IN1=CL
Output Voltage
Output Voltage
Output Current
Output Current
40μs/div
V
=2.85V
OUT
=30mA, CL=1μF(ceramic)
OUT
Ripple Frequency: f(kHz)
CM520
250
200
150
100
50
0
250
200
150
100
50
0
Series
(mA)
OUT
(mA) Output Current: I
OUT
Output Current: I
Output Current: I
(mA)
(mA)
OUT
OUT
Output Current: I
27/32
)
XCM520 Series
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Regulator Block (Continued)
(9) Ripple Rejection Rate (Continued)
V
=4.0VDC+0.5Vp-pAC, I
IN1
80
60
40
20
Ripple Rejection Ratio: PSRR(dB)
Ripple Rejection Ratio: PSRR (dB)
0
0.01 0.1 1 10 100
(10) Cross Talk
3.1
(V)
OUT
(V)
OUT
3.0
2.9
2.8
Output Voltage: V
2.7
Output Voltage: V
2.6
V
V
VR1 Output Voltage (3.0V)
VR1 Output Voltage(3.0V
100mA
10mA
V
=3.0V
OUT
=30mA, CL=1μF(ceramic)
OUT
Ripple Frequency: f(kHz) Ripple Frequency: f(kHz)
Ripple Frequency: f(kHz)
3.0V & V
OUT1
=4.0V, C
IN1
IN1=CL1=CL2
2.85V
OUT2
=1μF(ceramic)
V
=5.75VDC+0.5Vp-pAC, I
IN1
80
60
40
20
Ripple Rejection Ratio: PSRR(dB)
0
Ripple Rejection Ratio: PSRR (dB)
0.01 0.1 1 10 100
V
=5.0V
OUT
=30mA, CL=1μF(ceramic)
OUT
Ripple Frequency: f(kHz)
500
400
(mA)
(mA)
OUT
Output Current: I
OUT
Output Current: I
VR2 Output Voltage(2.85V)
VR2 Output Voltage (2.85V)
VR1
VR1
Output Current
Output Current
300
200
100
0
Time (40μs/div)
40μs/div
28/32
X
PACKAGING INFORMATION
USP-12B01
2.8±0.08
CM520
Series
(0.4) (0.4) (0.4) (0.4) (0.4)
(0.15) (0.25)
0.25±
0.05
0.2±
0.05
0.2±
0.05
0.2±
0.05
0.2±
0.05
0.2±
0.05
123456
1.2±0.1
0.7±0.050.7±0.05
USP-12B01 Reference Pattern Layout USP-12B01 Reference Metal Mask Design
1.35
0.45 0.45
0.90
0.65 0.65
0.95
0.55
0.65
1.05
0 .0250.025
0.30
0.25 0.15
0.25
0 . 025 0.025
0.250.25
1.2±0.1
1.35
0.90
78912 11 10
UNIT: mm
1.30
0.35 0.35
0.95
0.55
0.05
1.60
1.30
0.200.05
0.95
0.55
0.10 0.10
1.30
1.60
0.25 0.15
0.150.05 0.05
0.65
1.05
1.30
0.95
0.55
0.250.25
1.55
1.10
0.60
0.60
1.10
1.55
0.20 0.200.50
0.150.15 0.40
29/32
XCM520 Series
PACKAGING INFORMATION (Continued)
USP-12B01 Power Dissipation
Power dissipation data for the USP-12B01 is shown in this page.
The value of power dissipation varies with the mount board conditions.
Please use this data as one of reference data taken in the described condition.
1. Measurement Condition (Reference data)
Condition: Mount on a board
Ambient: Natural convection
Soldering: Lead (Pb) free
Board: Dimensions 40 x 40 mm (1600 mm
st
Layer: Land and a wiring pattern
1
nd
Layer: Connecting to approximate 50% of the 1
2
rd
Layer: Connecting to approximate 50% of the 2
3
th
Layer: Noting
4
Material: Glass Epoxy (FR-4)
Thickness: 1.6 mm
Through-hole: 2 x 0.8 Diameter (each TAB needs one through-hole)
2. Power Dissipation vs. Ambient temperature
Only 1ch heating, Board Mount (Tj max = 125)
2
in one side)
st
heat sink
nd
heat sink
Evaluation Board (Unit: mm)
Ambient Temperature(℃) Power Dissipation Pd(mW) Thermal Resistance (℃/W)
25 800
125.00
85 320
Pd vs Ta
1000
800
600
400
200
0
25 45 65 85 105 125
Both 2ch heating same time, Board Mount (Tj max = 125℃)
Ambient TemperatureTa(℃)
Ambient Temperature(℃) Power Dissipation Pd(mW) Thermal Resistance (℃/W)
25 600
166.67
85 240
Pd vs Ta
1000
800
600
400
200
0
25 45 65 85 105 125
Ambient Temperature Ta(℃)
30/32
X
MARKING RULE
USP-12B01
1 2
⑤ ⑥
① ② ③ ④
3 4
5 6
USP-12B01
CM520
Series
represents product series
MARK PRODUCT SERIES
1 XCM520 Series
12 11
10
9 8
7
②③ represents combination of IC
MARK
A A
represents combination of voltage for each IC.
MARK PRODUCT SERIES
1 XCM520**01**
,represents production lot number 01090A0Z11・・・9Z A1A9AA・・・Z9ZAZZ repeated (G, I, J, O, Q, W excluded) * No character inversion used.
PRODUCT SERIES
XC6401FF**XC9235A**D
31/32
XCM520 Series
1. The products and product specifications contained herein are subject to change without
notice to improve performance characteristics. Consult us, or our representatives
before use, to confirm that the information in this datasheet is up to date.
2. We assume no responsibility for any infringement of patents, patent rights, or other
rights arising from the use of any information and circuitry in this datasheet.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this datasheet.
4. The products in this datasheet are not developed, designed, or approved for use with
such equipment whose failure of malfunction can be reasonably expected to directly
endanger the life of, or cause significant injury to, the user.
(e.g. Atomic energy; aerospace; transport; combustion and associated safety
equipment thereof.)
5. Please use the products listed in this datasheet within the specified ranges.
Should you wish to use the products under conditions exceeding the specifications,
please consult us or our representatives.
6. We assume no responsibility for damage or loss due to abnormal use.
7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.
32/32
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