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x Duty 58% x CMOS Low Power Consumption x Operating Voltage: 0.9V~10.0V x Output Voltage Range: 2.0V~7.0V x Output Voltage Accuracy: 2.5%
s Applications
q Cellular phones, pagers q Palmtops q Cameras, video recorders q Portable equipment
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s General Description
The XC6381 series is a group of PFM controlled step-up DC/DC converters. The XC6381 series employs CMOS process and laser trimming technologies so as to attain low power and high accuracy. Max. oscillator frequency is trimmed to 155kHz (accuracy: 15%). Every built-in switching transistor type enables a step-up circuit to be configured using only three external components ; a coil, a diode, and a capacitor. External transistor versions are available to accommodate high output current applications. Both built-in and external transistor types include 5-pin and 3-pin packages, which are provided with either a CE (chip enable) function that reduces power consumption during shut-down mode, or a VDD pin function (separated power and voltage detect pins). SOT-23, SOT-25, and SOT-89-5 super mini-mold packages.
s Features
Operating (start-up) voltage range: 0.9V~10V Output voltage range: 2.0V~7.0V in 0.1V increments Highly accurate: Set-up voltage 2.5% Maximum oscillator frequency: 155kHz (15%) Duty Ratio: 58% (5%) Both built-in switching transistor and external types are available Five-lead packaged units offer either Chip Enable or independent VOUT pin option. Small package: SOT-23, 25 mini-mold (3-pin, 5-pin) SOT-89, 89-5 mini-power mold (3-pin, 5-pin)
s Selection Guide
PART TYPE XC6381A DUTY RATIO 58% PACKAGE SOT-23, SOT-89-3 SOT-23, SOT-89-3 SOT-25, SOT-89-5 SOT-25, SOT-89-5 SOT-25, SOT-89-5 SOT-25, SOT-89-5 SWITCHING RELATED Built-in Transistor "Lx" lead External Transistor "EXT" lead Built-in Transistor "Lx" lead External Transistor "EXT" lead Built-in Transistor "Lx" lead External Transistor "EXT" lead Chip Enable(CE) ADDITIONAL FUNCTION
* Accommodates
FEATURES a duty ratio of 58%.
XC6381B
58%
* Accommodates a duty ratio of 58%. * Adding an external transistor can improve
the output
capability by up to several hundred mA.
* Stand-by
XC6381C
58%
(CE) function added version to the XC6381A. * Stand-by current: 0.5A max.
* Stand-by
XC6381D
58%
Chip Enable(CE)
(CE) function added version to the XC6381B. * Stand-by current: 0.5A max.
XC6381E
58%
* Independent power supply and set-up voltage Separated "VDD" and "VOUT" leads sensing leads allow designing of PFM controllers. * Independent power supply and set-up voltage Separated "VDD" and "VOUT" leads sensing leads allow designing of PFM controllers.
XC6381F
58%
s Block Diagram
XC6381A~XC6381D (VOUT pin can also be used for VDD pin.)
VDD LX Buffer VLx limiter Vref VOUT
PFM Control OSC 155kHz VSS
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Chip Enable EXT
Note: Built-in Tr types use the Lx pin, external Tr types use the EXT pin. The CE pin is only used with the XC6381C and XC6381D.
CE
XC6381E and XC6381F
VDD VDD
LX Buffer
VLx limiter
Vref
VOUT
PFM Control OSC 155kHz VSS
EXT
Note: The VDD pin is only used with the XC6381E and XC6381F. Built-in Tr types use the Lx pin, external Tr types use the EXT pin.
s Absolute Maximum Ratings
Ta=25: PARAMETER VOUT Input Voltage Lx pin Voltage Lx pin Current EXT pin Voltage EXT pin Current CE Input Voltage VDD Input Voltage Continuous Total Power Dissipation SOT-23 SOT-89 PD Topr Tstg SYMBOL VOUT VLX ILX VEXT IEXT VCE VDD RATINGS 12 12 400 VSS-0.3~VOUT+0.3 50 12 12 150 500 -30~+80 -40~+125 : : UNITS V V mA V mA V V mW
Operating Ambient Temperature Storage Temperature
s Pin Configuration
5 3 5 4 4
1
2
1
2
3 1 2
SOT-89 (TOP VIEW)
3
1
2
SOT-89-5 (TOP VIEW)
3
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SOT-23 (TOP VIEW)
SOT-25 (TOP VIEW)
s Pin Assignment
(XC6381A, XC6381B)
PIN NUMBER XC6381A SOT-23 1 3 2 -- SOT-89-3 1 2 3 -- XC6381B SOT-23 1 3 -- 2 SOT-89-3 1 2 -- 3 VSS VOUT Lx EXT Ground Output voltage monitor, IC internal power supply Switch External switch transistor drive PIN NAME FUNCTION
(XC6381C, XC6381D)
PIN NUMBER XC6381C SOT-25 4 2 5 -- 1 3 SOT-89-5 5 2 4 -- 3 1 XC6381D SOT-25 4 2 -- 5 1 3 SOT-89-5 5 2 -- 4 3 1 VSS VOUT Lx EXT CE NC Ground Output voltage monitor, IC internal power supply Switch External switch transistor drive Chip enable No Connection PIN NAME FUNCTION
(XC6381E, XC6381F)
PIN NUMBER XC6381E SOT-25 4 2 5 -- 1 3 SOT-89-5 5 2 4 -- 3 1 XC6381F SOT-25 4 2 -- 5 1 3 SOT-89-5 5 2 -- 4 3 1 VSS VDD Lx EXT VOUT NC Ground IC internal power supply Switch External switch transistor drive Output voltage monitor No Connection PIN NAME FUNCTION
s Electrical Characteristics
XC6381A201
VOUT=2.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC VLXLMT EFFI IOUT=1mA IOUT=1mA IOUT=0mA,(Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1, VLX=0.4V No external components, VOUT=VLX=10V Same as IDD1 Measuring of Lx waveform Same as IDD1, 58% duty. Same as IDD1, Fosc MAXFOSC 2 L,SD,CL, etc. connected 53 131.75 0.7 70 58 155 0.70 4.3 20.1 1.9 9.1 8.6 40.2 3.9 13.7 1.0 63 178.25 1.1 CONDITIONS L,SD,CL, etc. connected MIN 1.950 10 0.80 0.90 TYP 2.000 MAX 2.050 Ta=25: UNITS V V V V A A A A % kHz V % PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current Supply Current 1 (Note 2) Supply Current 2 Lx Switch On-Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Lx Limit Voltage Efficiency
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Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6, IOUT=10mA. See Typical application circuits, Fig.1. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR) <1.0A at reverse voltage (VR)=10.0V. 2. "Supply current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates, which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)".
XC6381A301
VOUT=3.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC VLxLMT EFFI IOUT=1mA IOUT=1mA IOUT=0mA,(Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1, VLX=0.4V No external components, VOUT=VLX=10V Same as IDD1 Measuring of Lx waveform Same as IDD1, 58% duty. Same as IDD1, Fosc MAXFOSC 2 L,SD,CL, etc. connected 53 131.75 0.7 80 58 155 0.70 4.6 29.3 2.1 5.2 9.3 58.7 4.2 7.9 1.0 63 178.25 1.1 CONDITIONS L,SD,CL, etc. connected MIN 2.925 10 0.80 0.90 TYP 3.000 MAX 3.075
Ta=25: UNITS V V V V A A A A % kHz V %
PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current Supply Current 1 (Note 2) Supply Current 2 Lx Switch On-Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Lx Limit Voltage Efficiency
Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6, IOUT= 30mA. See Typical application circuits, Fig.1. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR) <1.0A at reverse voltage (VR)=10.0V. 2. "Supply current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates, which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)".
s Electrical Characteristics
XC6381A501
VOUT=5.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC VLxLMT EFFI IOUT=1mA IOUT=1mA IOUT=0mA,(Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1, VLX=0.4V No external components, VOUT=VLX=10V Same as IDD1 Measuring of Lx waveform Same as IDD1, 58% duty. Same as IDD1, foscMAXFOSC 2 L,SD,CL, etc. connected 53 131.75 0.7 85 58 155 0.70 5.3 47.8 2.4 2.8 10.6 95.7 4.8 4.3 1.0 63 178.25 1.1 CONDITIONS L,SD,CL, etc. connected MIN 4.875 10 0.80 0.90 TYP 5.000 MAX 5.125 Ta=25: UNITS V V V V A A A A % kHz V % PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current
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Supply Current 1 (Note 2) Supply Current 2 Lx Switch On-Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Lx Limit Voltage Efficiency
Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6, IOUT=50mA. See Typical application circuits, Fig.1. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR) <1.0A at reverse voltage (VR)=10.0V. 2. "Supply current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates, which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)".
XC6381B201MR
PARAMETER Output Voltage
VOUT=2.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 RSWON ILXL DTY MAXFOSC EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1, VEXT=VOUT-0.4V Same as IDD1, VEXT=0.4V Same as IDD1 Measuring of EXT waveform Same as IDD1, 58% duty. L,SD,CL,Tr etc. connected 53 131.75 0.70 20.1 1.9 140 140 58 155 70 40.2 3.9 210 210 63 178.25 CONDITIONS L,SD,CL,Tr etc. connected MIN 1.950 10 0.80 0.90 TYP 2.000 MAX 2.050
Ta=25: UNITS V V V V A A % kHz %
Maximum Input Voltage Oscillation Startup Voltage Oscillation Hold Voltage Supply Current 1 (Note) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Efficiency
Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6, IOUT= 10mA. See Typical application circuits, Fig.2. Note: "Supply current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates, which results in less average power consumption.
s Electrical Characteristics
XC6381B301MR
PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Supply Current 1 (Note) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Efficiency VOUT=3.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 RSWON ILXL DTY MAXFOSC EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5 Same as IDD1, VEXT=VOUT-0.4V. 0.70 29.3 2.1 76 76 53 131.75 58 155 80 58.7 4.2 114 114 63 178.25 CONDITIONS L,SD,CL,Tr etc. connected MIN 2.925 10 0.80 0.90 TYP 3.000 MAX 3.075 Ta=25: UNITS V V V V A A % kHz %
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Same as IDD1, VEXT=0.4V. Same as IDD1 Measuring of EXT waveform Same as IDD1, 58% duty. L,SD,CL,Tr etc. connected
Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6, IOUT=30mA. See Typical application circuits, Fig.2. Note: "Supply current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates, which results in less average power consumption.
XC6381B501MR
PARAMETER Output Voltage
VOUT=5.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 RSWON ILXL DTY MAXFOSC EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5 Same as IDD1, VEXT=VOUT-0.4V. Same as IDD1, VEXT=0.4V. Same as IDD1 Measuring of EXT waveform Same as IDD1, 58% duty. L,SD,CL,Tr etc. connected 53 131.75 0.70 47.8 2.4 50 50 58 155 85 95.7 4.8 75 75 63 178.25 CONDITIONS L,SD,CL,Tr etc. connected MIN 4.875 10 0.80 0.90 TYP 5.000 MAX 5.125
Ta=25: UNITS V V V V A A % kHz %
Maximum Input Voltage Oscillation Startup Voltage Oscillation Hold Voltage Supply Current 1 (Note) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Efficiency
Measuring conditions: Unless otherwise specified, VIN=VOUT 0.6, IOUT=50mA. See Typical application circuits, Fig.2. Note: "Supply current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates, which results in less average power consumption.
s Electrical Characteristics
XC6381C201MR
VOUT=2.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC ISTB VCEH VCEL ICEH ICEL VLxLMT EFFI CONDITIONS L,SD,CL etc. connected IOUT=1mA IOUT=1mA IOUT=0mA (Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VLX=0.4V. No external components.. VOUT=VLX=10V. Same as IDD1. Measuring of LX waveform. Same as IDD1. 58% duty. Same as IDD1. Same as IDD1. Existence of Lx Oscilllation. Same as IDD1. Disappearance of Lx Oscilllation. Same as IDD1. VCE=VOUT 0.95. Same as IDD1. VCE=0V. Same as IDD1. FOSC>MAXFOSC 2 L,SD,CL etc. connected 53 131.75 0.75 0.20 0.25 -0.25 0.7 70 1.1 58 155 MIN 1.950 10 0.70 4.3 20.1 1.9 9.1 8.6 40.2 3.9 13.7 1.0 63 178.25 0.5 TYP 2.000 0.80 MAX 2.050 0.90 Ta=25: UNITS V V V V A A A A % kHz A V V A A V % PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current Supply Current 1 (Note 2) Supply Current 2 Lx Switch-On Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Stand-by Current CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current Lx Limit Voltage Efficiency
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Measuring conditions: Unless otherwise specified, connect CE to VOUT, VIN=VOUT 0.6, IOUT=10mA. See Typical Application Circuits, Fig.3. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0A at reverse voltage (VR)=10.0V 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current acutually provided by an external VIN source is represented by "No-Load Input Current (IIN)".
XC6381C301MR
VOUT=3.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC ISTB VCEH VCEL ICEH ICEL VLxLMT EFFI CONDITIONS L,SD,CL etc. connected IOUT=1mA IOUT=1mA IOUT=0mA, (Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VLX=0.4V No external components. VOUT=VLX=10V. Same as IDD1. Measuring of LX waveform. Same as IDD1. 58% duty. Same as IDD1. Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation. Same as IDD1. VCE=VOUT 0.95. Same as IDD1. VCE=0V. L,SD,CL etc. connected 53 131.75 0.75 0.20 0.25 -0.25 0.7 80 1.1 58 155 MIN 2.925 10 0.70 4.6 29.3 2.1 5.2 9.3 58.7 4.2 7.9 1.0 63 178.25 0.5 TYP 3.000 0.80 MAX 3.075 0.90
Ta=25: UNITS V V V V A A A A % kHz A V V A A V %
PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current Supply Current 1 (Note 2) Supply Current 2 Lx Switch-On Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Stand-by Current CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current Lx Limit Voltage Efficiency
Measuring conditions: Unless otherwise specified, connect CE to VOUT, VIN=VOUT 0.6, IOUT=30mA. See Typical Application Circuits, Fig.3. Note: 1. The schottky diode (SD) must be type MA735, with reverse current (IR)<1.0A at reverse voltage (VR)=10.0V 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)".
s Electrical Characteristics
XC6381C501MR
VOUT=5.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC ISTB VCEH VCEL ICEH ICEL VLxLMT EFFI CONDITIONS L,SD,CL etc. connected IOUT=1mA IOUT=1mA IOUT=0mA(Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VLX=0.4V. No external components. VOUT=VLX=10V. Same as IDD1. Measuring of LX waveform. Same as IDD1. 58% duty. Same as IDD1. Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disapperance of Lx Oscillation. Same as IDD1. VCE=VOUT 0.95. Same as IDD1. VCE=0V. Same as IDD1. FOSC>MAXFOSC 2 L,SD,CL etc. connected 53 131.75 0.75 0.20 0.25 -0.25 0.7 85 1.1 58 155 MIN 4.875 10 0.70 5.3 47.8 2.4 2.8 10.6 95.7 4.8 4.3 1.0 63 178.25 0.5 TYP 5.000 0.80 MAX 5.125 0.90 Ta=25: UNITS V V V V A A A A % kHz A V V A A V % PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current Supply Current 1 (Note 2) Supply Current 2 Lx Switch-On Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Stand-by Current CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current Lx Limit Voltage Efficiency
e
Measuring conditions: Unless otherwise specified, connect CE to VOUT, VIN=VOUT 0.6, IOUT=50mA. See Typical Application Circuits, Fig.3. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0A at reverse voltage (VR)=10.0V 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)".
XC6381D201MR
PARAMETER Output Voltage
VOUT=2.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 REXTH REXTL DTY MAXFOSC ISTB VCEH VCEL ICEH ICEL EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VEXT=VOUT-0.4V. Same as IDD1. VEXT=0.4V Same as IDD1. Measuring of EXT waveform. Same as IDD1. 58% duty. Same as IDD1. Same as IDD1. Existence of EXT Oscilllation. Same as IDD1. Disappearance of EXT Oscilllation. Same as IDD1. VCE=VOUT 0.95. Same as IDD1. VCE=0V. L,SD,CL etc. connected 70 0.75 0.20 0.25 -0.25 53 131.75 0.70 20.1 1.9 140 140 58 155 40.2 3.9 210 210 63 178.25 0.5 CONDITIONS L,SD,CL etc. connected MIN 1.950 10 0.80 0.90 TYP 2.000 MAX 2.050
Ta=25: UNITS V V V V A A % kHz A V V A A %
Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Supply Current 1 (Note 1) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Stand-by Current CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current Efficiency
Measuring conditions: Unless otherwise specified, connect CE to VOUT, VIN=VOUT 0.6, IOUT=10mA. See Typical Application Circuits, Fig.4. Note: 1. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN) ".
s Electrical Characteristics
XC6381D301MR
PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Supply Current 1 (Note 1) VOUT=3.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 REXTH REXTL DTY MAXFOSC ISTB VCEH VCEL ICEH ICEL EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VEXT=VOUT-0.4V. Same as IDD1. VEXT=0.4V. Same as IDD1. Measuring of EXTwaveform. Same as IDD1. 58% duty. Same as IDD1. Same as IDD1. Existence of EXT Oscillation. Same as IDD1. Disappearance of EXT Oscillation. Same as IDD1. VCE=VOUT 0.95. Same as IDD1. VCE=0V. L,SD,CL etc. connected 80 0.75 0.20 0.25 -0.25 53 131.75 0.70 29.3 2.1 76 76 58 155 58.7 4.2 114 114 63 178.25 0.5 CONDITIONS L,SD,CL etc. connected MIN 2.925 10 0.80 0.90 TYP 3.000 MAX 3.075 Ta=25: UNITS V V V V A A % kHz A V V A A %
e
Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Stand-by Current CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current Efficiency
Measuring conditions: Unless otherwise specified, connect CE to VOUT, VIN=VOUT 0.6, IOUT=30mA. See Typical Application Circuits, Fig.4. Note: 1. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN) ".
XC6381D501MR
PARAMETER Output Voltage
VOUT=5.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 REXTH REXTL DTY MAXFOSC ISTB VCEH VCEL ICEH ICEL EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VEXT=VOUT-0.4V. Same as IDD1. VEXT=0.4V. Same as IDD1 Measuring of EXT waveform. Same as IDD1. 58% duty. Same as IDD1. Same as IDD1. Existence of EXT Oscillation. Same as IDD1. Dissapearance of EXT Oscillation. Same as IDD1. VCE=VOUT 0.95. Same as IDD1. VCE=0V L,SD,CL etc. connected 80 0.75 0.20 0.25 -0.25 53 131.75 0.70 47.8 2.4 50 50 58 155 95.7 4.8 75 75 63 178.25 0.5 CONDITIONS L,SD,CL etc. connected MIN 4.875 10 0.80 0.90 TYP 5.000 MAX 5.125
Ta=25: UNITS V V V V A A % kHz A V V A A %
Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Supply Current 1 (Note 1) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Stand-by Current CE "High" Voltage CE "Low" Voltage CE "High" Current CE "Low" Current Efficiency
Measuring conditions: Unless otherwise specified, connect CE to VOUT. VIN=VOUT 0.6, IOUT=50mA. See Typical Application Circuits, Fig.4. Note: 1. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN) ".
s Electrical Characteristics
XC6381E201MR
PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current Supply Current 1 (Note 2) Supply Current 2 Lx Switch-On Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Lx Limit Voltage Efficiency VOUT=2.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC VLxLMT EFFI IOUT=1mA. IOUT=1mA. IOUT=0mA(Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V. Same as IDD1. VLX=0.4V No external components. VOUT=VLX=10V. Same as IDD1 Measuring of LX waveform. Same as IDD1. 58% duty. Same as IDD1. FOSC>MAXFOSC 2 L,SD,CL etc. connected 53 131.75 0.7 0.7 58 155 0.70 4.3 20.1 1.9 9.1 8.6 40.2 3.9 13.7 1.0 63 178.25 1.1 CONDITIONS L,SD,CL etc. connected MIN 1.950 10 0.80 0.90 TYP 2.000 MAX 2.050 Ta=25: UNITS V V V V A A A A % kHz V %
e
Measuring conditions: Unless otherwise specified, connect VDD to VOUT, VIN=VOUT 0.6, IOUT=10mA. See Typical Application Circuits, Fig.5. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0A at reverse voltage (VR)=10.0V. 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)". When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
XC6381E301MR
PARAMETER Output Voltage
VOUT=3.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC VLxLMT EFFI IOUT=1mA. IOUT=1mA. IOUT=0mA(Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VLX=0.4V No external components. VOUT=VLX=10V Same as IDD1 Measuring of LX waveform. Same as IDD1. 58% duty. Same as IDD1. FOSC>MAXFOSC 2 L,SD,CL etc. connected 53 131.75 0.7 80 58 155 0.70 4.6 29.3 2.1 5.2 9.3 58.7 4.2 7.9 1.0 63 178.25 1.1 CONDITIONS L,SD,CL etc. connected MIN 2.925 10 0.80 0.90 TYP 3.000 MAX 3.075
Ta=25: UNITS V V V V A A A A % kHz V %
Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current Supply Current 1 (Note 2) Supply Current 2 Lx Switch-On Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Lx Limit Voltage Efficiency
Measuring conditions: Unless otherwise specified, connect VDD to VOUT, VIN=VOUT 0.6, IOUT=30mA. See Typical Application Circuits, Fig.5. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0A at reverse voltage (VR)=10.0V. 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)". When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
s Electrical Characteristics
XC6381E501MR
PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage No-Load Input Current VOUT=5.0V SYMBOL VOUT VIN VST VHLD IIN IDD1 IDD2 RSWON ILXL DTY MAXFOSC VLxLMT EFFI IOUT=1mA IOUT=1mA IOUT=0mA,(Note1) VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VLX=0.4V. No external components. VOUT=VLX=10V. Same as IDD1. Measuring of LX waveform. Same as IDD1. 58% duty. Same as IDD1. FOSC>MAXFOSC 2 L,SD,CL etc. connected 53 131.75 0.7 85 58 155 0.70 5.3 47.8 2.4 2.8 10.6 95.7 48 4.3 1.0 63 178.25 1.1 CONDITIONS L,SD,CL etc. connected MIN 4.875 10 0.80 0.90 TYP 5.000 MAX 5.125 Ta=25: UNITS V V V V A A A A % kHz V %
e
Supply Current 1 (Note 2) Supply Current 2 Lx Switch-On Resistance Lx Leakage Current Duty Ratio Maximum Oscillation Frequency Lx Limit Voltage Efficiency
Measuring conditions: Unless otherwise specified, connect VDD to VOUT, VIN=VOUT 0.6, IOUT=50mA. See Typical Application Circuits, Fig.5. Note: 1. The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0A at reverse voltage (VR)=10.0V. 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)". When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
XC6381F201MR
PARAMETER Output Voltage
VOUT=2.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 REXTH REXTL DTY MAXFOSC EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VEXT=VOUT-0.4V. Same as IDD1. VEXT=0.4V. Same as IDD1. Measuring of EXT waveform. Same as IDD 1. 58% duty. L,SD,CL etc. connected 53 131.75 0.70 20.1 1.9 140 140 58 155 70 40.2 3.9 210 210 63 178.25 CONDITIONS L,SD,CL etc. connected MIN 1.950 10 0.80 0.90 TYP 2.000 MAX 2.050
Ta=25: UNITS V V V V A A % kHz %
Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Supply Current 1 (Note 1) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Efficiency
Measuring conditions: Unless otherwise specified, connect VDD to VOUT, VIN=VOUT 0.6, IOUT=10mA. See Typical Application Circuits, Fig.6. Note: 1."Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
s Electrical Characteristics
XC6381F301MR
PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Supply Current 1 (Note 1) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Efficiency VOUT=3.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 REXTH REXTL DTY MAXFOSC EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VEXT=VOUT-0.4V. Same as IDD1. VEXT=0.4V. Same as IDD1. Measuring of EXT waveform. Same as IDD1. 58% duty. L,SD,CL etc. connected 53 131.75 0.70 29.3 2.1 76 76 58 155 80 58.7 4.2 114 114 63 178.25 CONDITIONS L,SD,CL etc. connected MIN 2.925 10 0.80 0.90 TYP 3.000 MAX 3.075 Ta=25: UNITS V V V V A A % kHz %
e
Measuring conditions: Unless otherwise specified, connect VDD to VOUT, VIN=VOUT 0.6, IOUT=30mA. See Typical Application Circuits, Fig.6. Note: 1. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
XC6381F501MR
PARAMETER Output Voltage
VOUT=5.0V SYMBOL VOUT VIN VST VHLD IDD1 IDD2 REXTH REXTL DTY MAxFOSC EFFI IOUT=1mA IOUT=1mA VIN=VOUT 0.95 VIN=VOUT+0.5V Same as IDD1. VEXT=VOUT-0.4V. Same as IDD1. VEXT=0.4V. Same as IDD1. Measuring of EXT waveform. Same as IDD1. 58% duty. L,SD,CL etc. connected 53 131.75 0.70 47.8 2.4 50 50 58 155 85 95.7 4.8 75 75 63 178.25 CONDITIONS L,SD,CL etc. connected MIN 4.875 10 0.80 0.90 TYP 5.000 MAX 5.125
Ta=25: UNITS V V V V A A % kHz %
Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Supply Current 1 (Note 1) Supply Current 2 EXT "High" On Resistance EXT "Low" On Resistance Duty Ratio Maximum Oscillation Frequency Efficiency
Measuring conditions: Unless otherwise specified, connect VDD to VOUT, VIN=VOUT 0.6, IOUT=30mA. See Typical Application Circuits, Fig.6. Note: 1. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from VDD=0.8V. However, output voltage and oscillator frequency are properly stabilized when VDD=2.2V or higher.
s Typical Application Circuits
SD L 2 1 L 3 VIN SOT-23 (TOP VIEW) VIN Tr SOT-23 (TOP VIEW) 3
VOUT
+
CL
e
SD CL
VOUT
CB
RB
1
2
+
GND
GND
L: 100H (SUMIDA, CD-54) SD: MA735 (Schottky diode; MATSUSHITA) CL: 16V 47F (Tantalum capacitor, NICHICON, F93)
L: SD: CL: RB: Tr:
47H (SUMIDA, CD-54) MA735 (Schottky diode; MATSUSHITA) 16V 47F (Tantalum capacitor, NICHICON, F93) 1k, CB:3300pF 2SC3279, 2SD1628G
Fig.1 XC6381A Application
Fig.2 XC6381B Application
CE SD L 5 4 L 3 VIN 3 VOUT SD CL CB RB 4 5 Tr SOT-25 (TOP VIEW) 2 1 VOUT
VIN 1
SOT-25 (TOP VIEW)
+
CL
2
+
CE
GND
GND
L: 100H (SUMIDA, CD-54) SD: MA735 (Schottky diode; MATSUSHITA) CL: 16V 47F (Tantalum capacitor, NICHICON, F93)
L: SD: CL: RB: Tr:
47H (SUMIDA, CD-54) MA735 (Schottky diode; MATSUSHITA) 16V 47F (Tantalum capacitor, NICHICON, F93) 1k, CB:3300pF 2SC3279, 2SD1628G
Fig.3 XC6381C Application
Fig.4 XC6381D Application
s Typical Application Circuits
SD L 5 4 L 3 Tr VIN 1 2 3 VOUT CB RB 4 5 SOT-25 (TOP VIEW) 2 1
VOUT
SOT-25 (TOP VIEW) VIN SD
+
CL
VDD
e
+
CL
VDD
GND
GND
L: 100H (SUMIDA, CD-54) SD: MA735 (Schottky diode; MATSUSHITA) CL: 16V 47F (Tantalum capacitor, NICHICON, F93)
L: SD: CL: RB: Tr:
47H (SUMIDA, CD-54) MA735 (Schottky diode; MATSUSHITA) 16V 47F (Tantalum capacitor, NICHICON, F93) 1k, CB:3300pF (FOSC=100kHz) 2SC3279, 2SD1628G
Fig.5 XC6381E Application
Fig.6 XC6381F Application
(Step-down circuit......built-in switching transistor type)
L VOUT
(High Output Voltage circuit......external switching transistor type)
L SD VOUT
RBE
3
VIN CB RB
2
SOT-25
(TOP VIEW)
1
VIN Tr SD CL
3
2
SOT-25
(TOP VIEW)
1
R1
CL
4
5
CB RB
4
5
R2
GND
GND
Fig.7 XC6381E Application
Fig.8 XC6381F Application
s Typical Application circuits
(Polarity Reverse Circuit......built-in switching transistor type) (Low Output Voltage step-up circuit......external switching transistor type)
CIN-OUT Tr RBE VIN SD -VOUT VDD GND CIN-OUT
3
2
SOT-25
(TOP VIEW)
1
L CL Tr
3
2
SOT-25
(TOP VIEW)
1
CL
e
CB
RB
4
5
VIN CB L RB
4
5
-VOUT
GND
SD
Fig.9 XC6381E Application
Note: It is recommended that the max input voltage between the VDD and the VSS pins should not exceed 10V.
Fig.10 XC6381F Application
Note: It is recommended that the max input voltage between the VDD and the VSS pins should not exceed 10V.
Also applicable to the XC6382 and XC6383 series.
s XC638xA (Built-in Switching Transistor)
(1)OUTPUT VOLTAGE vs. OUTPUT CURRENT
OUTPUT VOLTAGE:VOUT(V)
OUTPUT VOLTAGE:VOUT(V)
e
OUTPUT CURRENT:IOUT(mA)
OUTPUT CURRENT:IOUT(mA)
OUTPUT VOLTAGE:VOUT(V)
OUTPUT CURRENT:IOUT(mA)
OUTPUT VOLTAGE:VOUT(V)
OUTPUT CURRENT:IOUT(mA)
OUTPUT VOLTAGE:VOUT(V)
OUTPUT CURRENT:IOUT(mA)
(2)EFFICIENCY vs. OUTPUT CURRENT
EFFICIENCY:EFFI(%)
EFFICIENCY:EFFI(%)
OUTPUT CURRENT:IOUT(mA)
OUTPUT CURRENT:IOUT(mA)
EFFICIENCY:EFFI(%)
OUTPUT CURRENT:IOUT(mA)
EFFICIENCY:EFFI(%)
OUTPUT CURRENT:IOUT(mA)
EFFICIENCY:EFFI(%) OUTPUT CURRENT:IOUT(mA)
s XC638xA (Built-in Switching Transistor)
(3)RIPPLE VOLTAGE vs. OUTPUT CURRENT XC6382A301 XC6381A301
100
L=100H, C=47F(Tantalum)
XC6383A301
100
L=100H, C=47F(Tantalum)
100
L=100H, C=47F(Tantalum)
VIN=1.8V
RIPPLE:Vr (mVp-p)
RIPPLE:Vr (mVp-p)
RIPPLE:Vr (mVp-p)
80
80
80
60
VIN=1.8V 1.2V
60
60
VIN=1.5V
40
40
40
1.5V
20
20
20
1.5V
0 0 20 40 60 80 100 0 0 20
1.2V 0.9V
0 20 40 60 80 100
1.2V
40 60 80 100
0
e
OUTPUT CURRENT:IOUT(mA)
OUTPUT CURRENT:IOUT(mA)
OUTPUT CURRENT:IOUT(mA)
XC6382A501
L=100H, C=47F(Tantalum)
XC6383A501
L=100H, C=47F(Tantalum)
120 100 80 60 40 20 0
120
RIPPLE:Vr (mVp-p)
RIPPLE:Vr (mVp-p)
VIN=3.0V
100 80
VIN=3.0V 2.0V
60 40 20
2.0V
1.5V
0 20 40 60 80 100
1.5V
0 0 20 40 60 80 100
OUTPUT CURRENT:IOUT(mA)
OUTPUT CURRENT:IOUT(mA)
s XC638xB (External Switching Transistor)
(1)TYPICAL OUTPUT VOLTAGE vs. OUTPUT CURRENT
L=22H(CD105), RB=300, No CB L=22H(CD105), RB=300, CB=0.1F
OUTPUT VOLTAGE:VOUT (V)
OUTPUT VOLTAGE:VOUT (V)
3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 100 200 300 400 500
3.5 3.0 2.5
1.8V 1.2V 1.5V VIN=1.0V
1.8V
1.2V
2.0 1.5 1.0 0.5 0.0 0 100 200 300
1.5V
VIN=1.0V
400
500
OUTPUT CURRENT:IOUT(mA)
OUTPUT CURRENT:IOUT(mA)
L=22H(CD54), RB=500, No CB
L=22H(CD105), RB=300, CB=0.1F
OUTPUT VOLTAGE:VOUT (V)
5 4 3 2 1 0
3.0V
OUTPUT VOLTAGE:VOUT (V)
6
6 5 4 3 2 1 0
3.0V
2.0V 1.5V VIN=1.2V
2.0V VIN=1.5V
0
100
200
300
400
500
0
200
400
600
800
OUTPUT CURRENT:IOUT(mA)
OUTPUT CURRENT:IOUT(mA)

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