XC6223 Series
ETR0339-006a
Built-in Inrush Current Protection, 300mA High Speed LDO Voltage Regulator
■GENERAL DESCRIPTION
The XC6223 series is a high speed LDO regulator that features high accurate, low noise, high ripple rejection, low dropout
and low power consumption. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a
phase compensation circuit, a thermal shutdown circuit and an inrush current protection circuit.
The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the series
enables the electric charge at the output capacitor C
quickly returns to the V
The output voltage is selectable in 0.05V increments within the range of 1.2V to 4.0V which fixed by laser trimming
technologies. The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits
will operate when the output current reaches current limit level or the junction temperature reaches temperature limit level.
■APPLICATIONS
●Digital still cameras
●Cell phones
●Portable games
●Camera modules
●IC recorders
●Portable media players
●Bluetooth
●Wireless LAN
●Terrestrial digital TV tuners
●Cordless phones
■TYPICAL APPLICATION CIRCUIT
SS level. The output stabilization capacitor CL is also compatible with low ESR ceramic capacitors.
L to be discharged via the internal switch, and as a result the VOUT pin
■FEATURES
Maximum Output Current : 300mA
Input Voltage Range : 1.6～5.5V
Output Voltages : 2.0～4.0V （Accuracy ±1%）
1.2～1.95V （Accuracy ±20mV）
0.05V increments
Dropout Voltage :
200mV＠I
=300mA (V
OUT
Low Power Consumption : 100μA
Stand-by Current : 0.1μA
High Ripple Rejection : 80dB＠f=1kHz
Protection Circuits : Current Limit（400mA）
Short Circuit Protection
Over Heat Protection
Inrush Current Protection
Low ESR Capacitors : C
=1.0μF, CL=1.0μF
IN
CE Function : Active High
C
High Speed Discharge
L
Small Packages : USPQ-4B03
USP-4
SSOT-24
SOT-25
SOT-89-5
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■ TYPICAL PERFORMANCE
CHARACTERISTICS
XC6223x251
[V]
Output Voltage: V
OUT
2.60
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
tr = tf = 0.5μs, Ta = 25℃, I
V
= 3.5V, CIN = 1μF (ceramic), CL = 1μF (ceramic)
IN
Output Voltage
Output Current
Time [20μs/div]
= 1⇔150mA
OUT
400
350
300
250
200
150
100
50
0
Output Current Iout[mA]
OUT
=3.0V)
1/36
XC6223 Series
■PIN CONFIGURATION
*The dissipation pad for the USPQ-4B03,USP-4 packages should be solder-plated in reference mount pattern and metal masking so as to
enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the V
■PIN ASSIGNMENT
PIN NUMBER
USPQ-4B03 USP-4 SSOT-24 SOT-25 SOT-89-5
PIN NAME FUNCTIONS
4 4 4 1 4 VIN Power Input
1 1 3 5 5 V
Output
OUT
2 2 2 2 2 VSS Ground
3 3 1 3 3 CE ON/OFF Control
- - - 4 1 NC No Connection
■LOGIC CONDITION FOR THE PIN
PIN NAME DESIGNATOR CONDITION
CE
L
H
0V≦V
1.0V≦V
≦0.3V
CE
≦5.5V
CE
OPEN CE=OPEN
(No. 2) pin.
SS
2/36
■PIN FUNCTION ASSIGNMENT
CE LOGIC
CONDITION
IC OPERATION
H Operation ON
L Operation OFF(Stand-by)
OPEN *
* Undefined state in XC6223 A/B/E/F. On the other hand, Operation OFF states in XC6223C/D/G/H because that an internal
pull-down resister maintains the CE pin voltage to be low.
■PRODUCT CLASSIFICATION
●Ordering Information
XC6223①②③④⑤⑥-⑦
DESIGNATOR
①
②③
Output Voltage
(*1)
ITEM SYMBOL DESCRIPTION
Type of
Regulator
A
B
C
D
E
F
G
H
12～40
Without Inrush Current Protection, Without CE Pull-down, Without CL discharge (Semi-Custom)
Without Inrush Current Protection, Without CE Pull-down, With CL discharge (Semi-Custom)
Without Inrush Current Protection, With CE Pull-down, Without CL discharge (Semi-Custom)
Without Inrush Current Protection, With CE Pull-down, With CL discharge
With Inrush Current Protection, Without CE Pull-down, Without CL discharge (Semi-Custom)
With Inrush Current Protection, Without CE Pull-down, With CL discharge (Semi-Custom)
With Inrush Current Protection, With CE Pull-down, Without CL discharge (Semi-Custom)
With Inrush Current Protection, With CE Pull-down, With CL discharge
ex.) 2.80V → ②=2, ③=8, ④=please see down below.
±1％ (V
④
Output Accuracy
1
B
±0.02V (V
In case of 2nd decimal place 0 (ex.2.80V → ④=1)
±1％ (V
±0.02V (V
In case of 2nd decimal place 5 (ex.2.85V → ④=B)
⑤⑥-⑦
(*1)
Packages
(Order Unit)
9R-G
GR-G
NR-G
MR-G
PR-G
USPQ-4B03
USP-4
SSOT-24
SOT-25
SOT-89-5
≧2.0V)
OUT
＜2.0V)
OUT
≧2.0V)
OUT
＜2.0V)
OUT
(5,000/Reel)
(3,000/Reel)
(3,000/Reel)
(3,000/Reel)
(3,000/Reel)
XC6223
Series
(*1)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
3/36
XC6223 Series
■BLOCK DIAGRAMS
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
4/36
■ABSOLUTE MAXIMUM RATINGS
PAR AMET ER SYMBOL RATINGS UNITS
Input Voltage VIN
Output Current I
Output Voltage V
CE Input Voltage VCE
USPQ-4B03
USP-4
Power Dissipation
SSOT-24
SOT-25
SOT-89-5
Operating Temperature Range Topr
Storage Temperature Range Tstg
500
OUT
OUT
550 (PCB mounted)
1000 (PCB mounted)
Pd
500 (PCB mounted)
1300 (PCB mounted)
-0.3～+7.0
V
SS
(*1)
mA
-0.3～VIN+0.3
V
SS
-0.3～+7.0
V
SS
100
(*2)
120
(*2)
150
(*2)
250
600 (PCB mounted)
(*2)
500
(*2)
-40～+85 ℃
-55～+125 ℃
(*1) : IOUT≦Pd / (VIN-VOUT)
(*2) : The power dissipation figure shown is PCB mounted. Please refer to page 26～29 for details.
XC6223
Series
V
V
V
mW
5/36
XC6223 Series
■ELECTRICAL CHARACTERISTICS
●XC6223A/B/C/D/E/F/G/H Series
PAR AMET ER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUITS
V
Output Voltage
Maximum Output
Current
V
I
Load Regulation ΔV
Dropout Voltage
≧2.0V, VCE=VIN,
OUT(T)
I
OUT(E)
(*1)
V
OUTMAX
OUT
Vdif
(*4)
OUT
V
<2.0V, VCE=VIN,
OUT(T)
I
OUT
V
0.1mA≦I
VCE=VIN, I
=10mA
=10mA
(*3)
300 - - mA ①
CE=VIN
,
CE=VIN
≦300mA
OUT
=300mA E-1 mV ①
OUT
V
V
OUT(T)
OUT(T)
×0.99
(*2)
-20mV
(*2)
V
V
OUT(T)
(*2)
OUT(T)
(*2)
V
×1.01
V
OUT(T)
OUT(T)
(*2)
+20mV
(*2)
V
V
- 25 45 mV ①
Ta =2 5℃
①
Supply Current ISS V
Stand-by Current
Line Regulation
I
(ΔV
V
STB
V
+0.5V≦VIN≦5.5
OUT(T)
/
ΔV
OUT
)
IN・VOUT
V
CE=VIN
- 100 220 μA ②
CE=VIN
- 0.01 0.4 μA ②
CE=VSS
- 0.01 0.1 %/V ①
, I
Ｖ
OUT
=50mA
Input Voltage VIN - 1.6 - 5.5 V ①
Output Voltage
Temperature
Characteristics
Ripple Rejection Rate
PSRR
Current Limit I
Short Current I
CE High Level Voltage
CE Low Level Voltage
V
V
CE High Level Current
(A/B/E/F Type)
CE High Level Current
(C/D/G/H Type)
CE Low Level Current
I
CL Discharge
Resistance
(Only B/D/F/H Type)
Inrush Current
(Only E/F/G/H Type)
Thermal Shutdown
Detect Temperature
Thermal Shutdown
Release Temperature
Thermal Shutdown
Hysteresis Width
NOTE:
*1: VOUT(E): Effective output voltage
(i.e. the output voltage when “V
*2: V
OUT(T): Nominal output voltage
*3: The standard output voltage is specified in V
*4: Vdif＝{V
*5: V
IN1
*6: V
OUT1
*7: Unless otherwise stated regarding input voltage conditions, V
{*5}－V
IN1
OUT1
=The input voltage when V
=A voltage equal to 98% of the output voltage whenever an amply stabilized I
ΔV
OUT
(ΔTa・V
OUT
V
LIM
SHORT
CEH
CEL
I
CEH
I
CEH
CEL
R
DCHG
Irush V
T
TSD
T
TSR
T
- T
TSD
{*6}} (V
≧1.6V)
IN1
OUT1
/
V
VCE=VIN, I
)
-40℃≦Ta ≦85℃
V
V
=3.0VDC+0.5Vp-p
IN
VCE=V
=30mA、f=1kHz
I
OUT
V
V
IN
V
V
CE=VOUT(T)
=30mA、f=1kHz
I
OUT
CE=VIN
OUT
＜2.5V
OUT(T)
OUT(T)
≧2.5V
OUT(T)
=｛V
OUT(T)
+0.5Vp-pAC
DC
CE=VIN
, V
OUT=VSS
=10mA
- ±100 -
AC
ppm / ℃
+1.0V
- 80 - dB ③
+1.0｝
+1.0V
310 400 - mA ①
- 50 - mA ①
- 1.0 - 5.5 V ④
- - - 0.3 V ④
V
V
V
V
IN
＝5.5V -0.1 - 0.1 μA ④
CE=VIN
=5.5V 3.0 5.5 9.0 μA ④
CE=VIN
-0.1 - 0.1 μA ④
CE=VSS
=5.5V, V
IN=VCE
=2.0V,
V
CE=VSS
OUT
- 300 - Ω ①
=5.5V - 150 - mA ⑤
Junction Temperature - 150 - ℃
Junction Temperature - 120 - ℃
Junction Temperature - 30 - ℃
TSR
OUT(T)+1.0V” is provided at the VIN pin while maintaining a certain IOUT value.)
±20mV where V
OUT（T
）
OUT（T
＜2.0V.
）
appears as input voltage is gradually decreased.
{V
+1.0V} is input
OUT(T)
IN=VOUT(T)
＋1.0V.
OUT
6/36
①
①
V
■ELECTRICAL CHARACTERISTICS (Continued)
●Voltage Chart 1
SYMBOL E-0 E-1
PAR AMET ER
NOMINAL
OUTPUT
OLTAGE (V)
V
OUT(T)
1.20 1.1800 1.2200
1.25 1.2300 1.2700
1.30 1.2800 1.3200
1.35 1.3300 1.3700
OUTPUT VOLTAGE
(V)
V
OUT(E)
MIN MAX TYP
480 630
440 580
1.40 1.3800 1.4200
1.45 1.4300 1.4700
1.50 1.4800 1.5200
420 520
1.55 1.5300 1.5700
1.60 1.5800 1.6200
1.65 1.6300 1.6700
1.70 1.6800 1.7200
400 440
1.75 1.7300 1.7700
1.80 1.7800 1.8200
1.85 1.8300 1.8700
1.90 1.8800 1.9200
300 410
1.95 1.9300 1.9700
2.00 1.9800 2.0200
2.05 2.0295 2.0705
2.10 2.0790 2.1210
2.15 2.1285 2.1715
2.20 2.1780 2.2220
2.25 2.2275 2.2725
270 380
2.30 2.2770 2.3230
2.35 2.3265 2.3735
2.40 2.3760 2.4240
2.45 2.4255 2.4745
2.50 2.4750 2.5250
2.55 2.5245 2.5755
2.60 2.5740 2.6260
2.65 2.6235 2.6765
240 350
2.70 2.6730 2.7270
2.75 2.7225 2.7775
DROPOUT VOLTAGE
XC6223
Series
(mV)
Vdif
MAX
7/36
V
XC6223 Series
■ELECTRICAL CHARACTERISTICS (Continued)
●Voltage Chart2
SYMBOL E-0 E-1
PAR AMET ER
NOMINAL
OUTPUT
OLTAGE (V)
V
OUT(T)
OUTPUT VOLTAGE
(V)
V
OUT(E)
MIN. MAX.
2.80 2.7720 2.8280
2.85 2.8215 2.8785
2.90 2.8710 2.9290
2.95 2.9205 2.9795
3.00 2.9700 3.0300
3.05 3.0195 3.0805
3.10 3.0690 3.1310
3.15 3.1185 3.1815
3.20 3.1680 3.2320
3.25 3.2175 3.2825
3.30 3.2670 3.3330
3.35 3.3165 3.3835
3.40 3.3660 3.4340
3.45 3.4155 3.4845
3.50 3.4650 3.5350
3.55 3.5145 3.5855
3.60 3.5640 3.6360
3.65 3.6135 3.6865
3.70 3.6630 3.7370
3.75 3.7125 3.7875
3.80 3.7620 3.8380
3.85 3.8115 3.8885
3.90 3.8610 3.9390
3.95 3.9105 3.9895
4.00 3.9600 4.0400
DROPOUT VOLTAGE
(mV)
Vdif
TYP.
MAX.
240 350
200 305
8/36
XC6223
■ OPERATIONAL EXPLANATION
<Low ESR Capacitor>
The XC6223 series needs an output capacitor C
compensation, please place an output capacitor of 1.0μF or bigger at the V
a stable power input, please connect an input capacitor (C
(V
).
SS
<Current Limiter, Short-Circuit Protection>
The protection circuit operates as a combination of an output current limiter and fold-back short circuit protection. When
load current reaches the current limit level, the output voltage drops. As a result, the load current starts to reduce with
showing fold-back curve. The output current finally falls at the level of 50mA when the output pin is short-circuited.
<CE Pin>
The IC's internal circuitry can be shutdown via the signal from the CE pin (CE). In shutdown mode, the XC6223B/D/F/H
series enables the electric charge at the output capacitor (C
a result the output pin (V
becomes undefined state in the XC6223A/B/E/F series because of a high active and no pull-down. On the other hand, the
XC6223C/D/G/H series has a pull-down resistor at the CE pin (CE) inside, so that the CE pin (CE) input current flows.
<Thermal Shutdown>
When the junction temperature of the built-in driver transistor reaches the temperature limit, the thermal shutdown circuit
) quickly returns to the ground pin (VSS) level. When the CE pin (CE) is open, the output voltage
OUT
operates and the driver transistor will be set to OFF. The IC resumes its operation when the thermal shutdown function is
released and the IC’s operation is automatically restored because the junction temperature drops to the level of the thermal
shutdown release voltage.
<Inrush Current Protection>
The inrush current protection circuit is built in the XC6223 series.
When the IC starts to operate, the protection circuit limits the inrush current from input pin (V
C
capacitor. This function is built in the XC6223E/F/G/H series.
L
The voltage divided by resistors R1 & R2 is compared with the
internal reference voltage by the error amplifier. The P-channel
MOSFET which is connected to the Output pin (V
) is then driven
OUT
by the subsequent control signal. The output voltage at the Output
pin (V
) is controlled and stabilized by a system of negative
OUT
feedback. The current limit circuit and short circuit protection
operate in relation to the level of output current and heat dissipation.
Further, the IC’s internal circuitry can be shutdown via the CE pin
(CE) signal.
for phase compensation. In order to ensure the stable phase
L
) of 1.0μF between the input pin (VIN) and the ground pin
IN
) to be discharged via the internal auto-discharge switch, and as
L
pin and VSS pin as close as possible. For
OUT
) to output pin (V
IN
OUT)
to charge
Series
9/36
XC6223 Series
■ NOTES ON USE
1． Where wiring impedance is high, operations may become unstable due to the noise and/or phase lag depending on output
current. Please strengthen input pin (V
2. The input capacitor C
3. The IC is controlled with constant current start-up. Start-up sequence control is requested to draw a load current after
even nominal output voltage rising up the output voltage.
4. For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be
exceeded.
5. Torex places an importance on improving our products and its reliability.
However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.
and the output capacitor CL should be placed to the as close as possible with a shorter wiring.
IN
and output pin (V
IN)
) wiring in particular.
OUT
10/36
■TEST CIRCUITS
・測定回路1
●Circuit ①
XC6223
Series
V
・測定回路2
●Circuit ②
C
(ceramic)
C
IN
(ceramic)
V
IN
CE
IN
A
V
IN
CE
V
OUT
V
SS
V
SS
(ceramic)
V
OUT
C
L
A
I
OUT
V
・測定回路3
●Circuit ③
V
IN
CIN=0.1μF
(ceramic)
V V
CE
V
OUT
V
SS
C
L
(ceramic)
I
OUT
=30mA
A
11/36
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