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XC6367
User Manual
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TOREX XC6367, XC6368 User Manual

XC6367/XC6368 Series
ETR0401_004a
PWM Controlled, PWM/PFM Switchable Step-up DC/DC Controllers
The XC6367/XC6368 series are multi-functional step-up DC/DC contro llers which provid e high efficiency outputs by using an externally connected transistor, coil, diode and capacitor. Output voltage is selectable in 0.1V increments within a range of 1.5V ~ 6.5V (±2.5%). For output voltages outside this range, we recommend FB version, which has a 1.0V internal refere nce voltage. Using the FB version, the required output voltage can be set-up using 2 external resistors. With a 300kHz oscillation frequency, the size of the external components can be reduced. Control switches from PWM to PFM during light loads with the XC6368 (PWM/PFM switchable) and the series is highly efficient from light loads to large output currents. Soft start time of XC6367/ XC6368A, B, and E series is internally set to 10ms and XC6367/68C, D, and F series regulat e soft-start time by connecting resistors and capacitors externally. During stand-by (CE pin "Low"), supply current is reduced to less than 0.5μA.
■APPLICATIONS
●Electronic information organizers
●Palmtops
●Cellular and portable phones
●Portable audio systems
●Various multi-function power supplies
■TYPICAL APPLICATION CIRCUIT
■FEATURES
Input Voltage Range : 0.9V ~ 10V Operating Voltage Range Output voltage Range : Oscillation Frequency
Output Current : More than 200mA (V High Efficiency : 84% (TYP.) Stand-by capability : I Selection : Soft-start set-up external
Package : SOT-25 Environmentally Friendly : EU RoHS Compliant, Pb Free
■ TYPICAL PERFORMANCE CHARACTERISTICS
☆GreenOperation-Compatible
: 2.0V ~ 10V
1.5V ~ 6.5V (0.1V increments) (±2.5%)
: 300kHz, 100kHz (±15%)
Custom products for 180kHz, 500kHz
IN=1.8V, VOUT=3.3V)
=0.5μA (MAX.)
STB
Output voltage set-up internal (V Output voltage set-up external (FB) PWM/PFM Control (XC6368)
OUT)
1/28
（ ）
XC6367/XC6368 Series
■PIN CONFIGURATION
■PIN ASSIGNMENT
PIN NUMBER
XC6367/XC6368
A, B, C, D
E, F 5 5 EXT : External Transistor Connection 2 - VDD : Supply Voltage Input 4 4 GND : Ground
3 1 CE
1 2
■PRODUCT CLASSIFICATION
●Selection Guide
START
PIN NAME FUNCTION
: Chip Enable
(C, D, F Types: Soft Start External Set-Up, Soft Start Capacitor Connected)
OUT
V
(FB)
: Output Voltage Monitor
(E, F Types: Output Voltage Monitor, Power Supply) (B, D Types: Output Voltage External Set-up)
Soft-Start Internally Set-Up
Output Voltage Internally Set-Up
Output Voltage Externally Set-Up (FB)
Soft-Start Externally Set-Up
Output Voltage Internally Set-Up
Output Voltage Externally Set-Up
OUT=VDD
V
V
OUT=VDD
(V
pin
(V
pin
OUT
OUT
(FB)
)
XC6367A,XC6368A
XC6367E,XC6368E
XC6367B,XC6368B
)
XC6367C,XC6368C
XC6367F,XC6368F
XC6367D,XC6368D
2/28
)
■PRODUCT CLASSIFICATION(Continued
●Ordering Information
XC6367①②③④⑤⑥-⑦ XC6368①②③④⑤⑥-⑦
DESIGNATOR
(*1)
PWM Control
(*1)
PWM/PFM Switching Control
ITEM
SYMBOL
A VOUT type: VOUT internally set-up, Soft-start internally set-up B FB type: VOUT externally set-up, Soft-start internally set-up
①
Type of DC/DC Converter
C VOUT type: VOUT internally set-up, Soft-start externally set-up D FB type: VOUT externally set-up, Soft-start externally set-up E VOUT type: VOUT internally set-up, Soft-start internally set-up F VOUT type: VOUT internally set-up, Soft-start externally set-up
XC6367/XC6368
Series
DESCRIPTION
②③
15 ~ 65
Output Voltage
10
OUT type: 3.0V output → ②=3, ③=0
V
FB type (B, D types): 10 fixed → ②=1, ③=0 fixed
3 300kHz
④
Oscillation Frequency
1 100kHz 2 180kHz (Custom) 5 500kHz (Custom)
⑤⑥-⑦
(*1)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
Package
(Order Unit)
MR SOT-25 (3,000/Reel)
MR-G SOT-25 (3,000/Reel)
3/28
D
XC6367/XC6368 Series
■BLOCK DIAGRAMS
XC6367, XC6368 Series A, C, E, F types (VOUT)
V
OUT
ErrorAmp.
+
-
CE
Vref with
SoftStart,
CE
* VOUT and VDD of the E and F types should be connected internally.
XC6367, XC6368 Series B,D types (FB)
Error Amp.
FB
CE
+
-
Vref with
Soft Start,
CE
Phase
Compensation
PWM/PFM
Controller
Phase
Compensation
PWM/PFM
Controller
PWM
Comparator
+
-
Ramp Wave
Generator,
OSC
PWM
Comparator
+
-
Ramp Wave
Generator,
OSC
Buffer,
Driver
Buffer,
Driver
V
DD
EXT
GND
V
DD
EXT
GND
GN
4/28
A
XC6367/XC6368
Series
■
BSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNITS
VDD Pin Voltage VDD -0.3 ~ +12.0 V
VOUT Pin Voltage VOUT -0.3 ~ +12.0 V
FB Pin Voltage VFB -0.3 ~ +12.0 V
CE Pin Voltage VCE -0.3 ~ +12.0 V EXT Pin Voltage VEXT -0.3 ~ VDD+0.3 V EXT Pin Current IEXT
Power Dissipation Pd 150 mW
Operating Temperature Range Topr -30 ~ +80
Storage Temperature Range Tstg -40 ~ +125
*Voltage is all ground standardized.
■ELECTRICAL CHARACTERISTICS
XC6367A333MR, XC6368A333MR
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage VOUT 3.218 3.300 3.383 V
Supply Voltage (* 1) VDD 2.0 - 10.0 V
Maximum Input Voltage VIN 10.0 - - V Oscillation Start Voltage 1 VST1 Tr: 2SD1628, IOUT=1.0mA - - 0.9 V Oscillation Start Voltage 2 VST2 VOUT=CE: Apply voltage - - 0.8 V
Oscillation Hold Voltage VHLD Tr: Use of a 2SX1628, IOUT=1.0mA - - 0.7 V
Supply Current 1 IDD1 VOUT=CE=setting output voltage x 0.95 - 130 200 Supply Current 2 IDD2 VOUT=CE=setting output voltage + 0.5V - 20 35
Stand-by Current ISTB VOUT=setting output voltage x 0.95, CE=0V - - 0.5 Oscillator Frequency FOSC Same as IDD1 255 300 345 kHz Maximum Duty Ratio MAXDTY Same as IDD1 78 85 92 % PFM Duty Ratio (* 3) PFMDTY IOUT=0mA 15 25 35 %
CE "High" Voltage VCEH VOUT=setting output voltage x0.95 0.65 - - V
CE "Low" Voltage VCEL VOUT=setting output voltage x0.95 - - 0.20 V
EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 29 43
EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 19 27
Efficiency (* 2) EFFI - 84 - %
Soft-Start Time TSS 5 10 20 msec
Conditions: Unless otherwise stated, connect VDD to VOUT; VIN=setting output voltage x 0.6, IOUT=130mA NOTE:
* 1: When taking V
Oscillation will occur with a value of V
output voltage and oscillation frequency will be stable. * 2: EFFI = {[(output voltage) x (output current)]÷[(input voltage) x (input current)] x 100 * 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
DD from another power source please ensure that VDD = 2.0V or more.
DD = 0.8V or more, but with a value of VDD = 2.0V or more,
±100
VOUT=3.3V, FOSC=300kHz, Ta=25℃
Ta = 25℃
mA
℃ ℃
μA μA μA
Ω Ω
5/28
XC6367/XC6368 Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC6367A503MR, XC6368A503MR
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage VOUT 4875 5.000 5.125 V
Supply Voltage (* 1) VDD 2.0 - 10.0 V
Maximum Input Voltage VIN 10.0 - - V Oscillation Start Voltage 1 VST1 Tr: 2SD1628, IOUT=1.0mA - - 0.9 V Oscillation Start Voltage 2 VST2 VOUT=CE : Apply voltage - - 0.8 V
Oscillation Hold Voltage VHLD Tr: 2SD1628, IOUT=1.0mA - - 0.7 V
Supply Current 1 IDD1 VOUT=CE=setting outp ut voltage x 0.95 - 180 280 Supply Current 2 IDD2 VOUT=CE=setting output voltage + 0.5V - 22 38 Stand-by Current ISTB VOUT=setting output voltage x 0.95, CE=0V - - 0.5
Oscillation Frequency FOSC Same as IDD1 255 300 345 kHz
Maximum Duty Ratio MAXDTY Same as IDD1 78 85 92 % PFM Duty Ratio (* 3) PFMDTY IOUT=0mA 15 25 35 %
CE "High" Voltage VCEH VOUT=setting o utput voltage x0.95 0.65 - - V
CE "Low" Voltage VCEL VOUT=setting output voltage x0.95 - - 0.20 V
EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 20 29
EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 13 19
Efficiency (* 2) EFFI - 87 - %
SS and CSS,
Soft-Start Time TSS
Connect R CE:0V→3.0V (XC6367C/F and XC6368C/F series)
Conditions: Unless otherwise specified, connect VDD to VOUT; VIN=setting output voltage x 0.6, IOUT=200mA NOTE:
* 1: When taking V
Oscillation will occur with a value of V
output voltage and oscillation frequency will be stable. * 2: EFFI = {[(output voltage) x (output current)]÷[(input voltage) x (input current)] x 100 * 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
* 4: The values of supply voltage and NOTE *1 do not apply to XC6367E/F and XC6368E/F series. For XC6367E/F and
XC6368E/F series, output voltage less than 2.0V cannot be set-up.
DD from another power source please ensure that VDD = 2.0V or more.
DD = 0.8V or more, but with a value of VDD = 2.0V or more,
VOUT=5.0V, FOSC=300kHz,Ta=25℃
μA μA μA
Ω Ω
5 10 20 msec
6/28
,
XC6367/XC6368
Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC6367B103MR, XC6368B103MR
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage VOUT 2.925 3.000 3.075 V
Supply Voltage (* 1) VDD 2.0 - 10.0 V
Maximum Input Voltage VIN 10.0 - - V
Oscillation Start Voltage 1 VST1 Tr: 2SD1628, IOUT=1.0mA - - 0.9 V Oscillation Start Voltage 2 VST2 VDD=CE: Apply voltage, FB=0V - - 0.8 V
Oscillation Hold Voltage VHLD Tr: 2SD1628, IOUT=1.0mA - - 0.7 V
Supply Current 1 IDD1 VDD=CE=2.85V,FB=0V - 120 190 Supply Current 2 IDD2 VDD=CE=3.5V,FB=1.2V - 20 34 Stand-by Current ISTB VDD=2.85V, CE=0V, FB=0V - - 0.5
Oscillation Frequency FOSC Same as IDD1 255 300 345 kHz
Maximum Duty Ratio MAXDTY Same as IDD1 78 85 92 %
PFM Duty Ratio (* 3) PFMDTY IOUT=0mA 15 25 35 %
CE "High" Voltage VCEH VDD=2.85V,FB=0V 0.65 - - V
CE "Low" Voltage VCEL VDD=2.85V,FB=0V - - 0.20 V
EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VDD-0.4V - 32 47
EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 20 30
Efficiency (* 2) EFFI - 84 - %
Soft-Start Time TSS
Conditions: Unless otherwise stated, VIN=1.8V, IOUT=120mA NOTE:
* 1: When taking V
* 2: EFFI = {[(output voltage) x (output current)]÷[(input voltage) x (input current)] x 100 * 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
External components : R
DD from another power source please ensure that VDD = 2.0V or more.
Oscillation will occur with a value of V
output voltage and oscillation frequency will be stable.
FB1 = 400kΩ, RFB2 = 200kΩ, CFB = 47pF
DD = 0.8V or more, but with a value of VDD = 2.0V or more,
Connect RSS and CSS, CE:0V→3.0V (XC6367D/68D series)
V
OUT=3.0V
FOSC=300kHz, Ta=25℃
5 10 20 msec
μA μA μA
Ω Ω
7/28
XC6367/XC6368 Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC6367A331MR, XC6368A331MR
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage VOUT 3.218 3.300 3.383 V
Supply Voltage (* 1) VDD 2.0 - 10.0 V
Maximum Input Voltage VIN 10.0 - - V Oscillation Start Voltage 1 VST1 Tr: 2SD1628, IOUT=1.0mA - - 0.9 V Oscillation Start Voltage 2 VST2 VOUT=CE: Apply voltage - - 0.8 V
Oscillation Hold Voltage VHLD Tr: 2SD1628, IOUT=1.0mA - - 0.7 V
Supply Current 1 IDD1 VOUT=CE=setting output voltage x 0.95 - 50 100 Supply Current 2 IDD2 VOUT=CE=setting output voltage + 0.5V - 11 20
Stand-by Current ISTB VOUT=setting output voltage x 0.95, CE=0V - - 0.5
Oscillation Frequency FOSC Same as IDD1 85 100 115 kHz
Maximum Duty Ratio MAXDTY Same as IDD1 78 85 92 % PFM Duty Ratio (* 3) PFMDTY IOUT=0mA 15 25 35 %
CE "High" Voltage VCEH VOUT=setting output voltage x0.95 0.65 - - V
CE "Low" Voltage VCEL VOUT=setting output voltage x0.95 - - 0.20 V
EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 29 43
EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 19 27
Efficiency (* 2) EFFI - 84 - %
Soft-Start Time TSS 5 10 20 msec
Conditions: Unless otherwise stated, connect VDD to VOUT; VIN=setting output voltage x 0.6, IOUT=130mA NOTE:
* 1: When taking V
Oscillation will occur with a value of V
output voltage and oscillation frequency will be stable. * 2: EFFI = {[(output voltage) x (output current)]÷[(input voltage) x (input current)] x 100 * 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
DD from another power source please ensure that VDD = 2.0V or more.
DD = 0.8V or more, but with a value of VDD = 2.0V or more,
OUT=3.3V, FOSC=100kHz, Ta=25℃
V
μA μA μA
Ω Ω
8/28
XC6367/XC6368
Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC6367A501MR, XC6368A501MR
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage VOUT 4875 5.000 5.125 V
Supply Voltage (* 1) VDD 2.0 - 10.0 V
Maximum Input Voltage VIN 10.0 - - V Oscillation Start Voltage 1 VST1 Tr: 2SD1628, IOUT=1.0mA - - 0.9 V Oscillation Start Voltage 2 VST2 VOUT=CE: Apply voltage - - 0.8 V
Oscillation Hold Voltage VHLD Tr: 2SX1628, IOUT=1.0mA - - 0.7 V
Supply Current 1 IDD1 VOUT=CE=setting output voltage x 0.95 - 70 120 Supply Current 2 IDD2 VOUT=CE=setting output voltage + 0.5V - 11 22 Stand-by Current ISTB VOUT=setting output voltage x 0.95, CE=0V - - 0.5
Oscillation Frequency FOSC Same as IDD1 85 100 115 kHz
Maximum Duty Ratio MAXDTY Same as IDD1 78 85 92 % PFM Duty Ratio (* 3) PFMDTY IOUT=0mA 15 25 35 %
CE "High" Voltage VCEH VOUT=setting output voltage x0.95 0.65 - - V
CE "Low" Voltage VCEL VOUT=setting output voltage x0.95 - - 0.20 V EXT "High" ON Resistance REXTH Same as IDD1, VEXT=VOUT-0.4V - 20 29 EXT "Low" ON Resistance REXTL Same as IDD1, VEXT=0.4V - 13 19
Efficiency (* 2) EFF I - 87 - %
Soft-Start Time TSS 5 10 20 msec
Conditions: Unless otherwise stated, connect VDD to VOUT; VIN=setting output voltage x 0.6, IOUT=200mA NOTE:
* 1: When taking V
Oscillation will occur with a value of V
output voltage and oscillation frequency will be stable. * 2: EFFI = {[(output voltage) x (output current)]÷[(input voltage) x (input current)] x 100 * 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
DD from another power source please ensure that VDD = 2.0V or more.
DD = 0.8V or more, but with a value of VDD = 2.0V or more,
OUT=5.0V, FOSC=100kHz, Ta=25℃
V
μA μA μA
Ω Ω
9/28
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