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NDuty 58% NCMOS Low Power Consumption NOperating Voltage NOutput Voltage Range : 0.9V~10.0V : 2.0V~7.0V
GCellular phones, pagers GPalmtops GCameras, video recorders GPortable equipment
NOutput Voltage Accuracy : 2.5%
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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. 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)
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XC6381A
XC6381C
XC6381E
476
GSelection Guide
PART TYPE XC6381A DUTY RATIO 58% PACKAGE SOT-23, SOT-89 SOT-25, SOT-89-5 SOT-25, SOT-89-5 SWITCHING RELATED Built-in Transistor "Lx" lead Built-in Transistor "Lx" lead Built-in Transistor "Lx" lead ADDITIONAL FUNCTION -
* Accommodates
FEATURES a duty ratio of 58%.
* Stand-by
XC6381C
58%
Chip enable(CE)
* Stand-by
(CE) function added version to the XC6381A. 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.
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GOrdering Information
XC6381qwerty XC6381 Series
A q C E w e r 1 M t P y R L Package
PFM Controlled Duty 58%
3-pin. Built-in switching transistor Stand-by capability. (5-pin) Built-in switching transistor Separated VDD and VOUT. (5-pin) Built-in switching transistor Output Voltage e.g.VOUT=3.5V w=3, e=5 Maximum Oscillator Frequency Package q=A~B q=C~F q=A~B q=C~F 155kHz SOT-23 SOT-25 SOT-89 SOT-89-5
Embossed tape : Standard Feed Embossed tape : Reverse Feed
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GSOT-23
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GSOT-25
478
GSOT-89
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GSOT-89-5
479
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2 1
4 3
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480
XC6381A, XC6381C (VOUT pin can also be used for VDD pin.)
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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.
Note: The VDD pin is only used with the XC6381E. Built-in Tr types use the Lx pin, external Tr types use the EXT pin.
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
SYMBOL VOUT VLX ILX VEXT IEXT VCE VDD PD Topr Tstg
RATINGS 12 12 400 VSS-0.3~VOUT+0.3 50 12 12 150 500 -30~+80 -40~+125
Ta=25C UNITS V V mA V mA V V mW C C
Operating Ambient Temperature Storage Temperature
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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=25C 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
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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)".
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=25C 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=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)".
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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=25C 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=30mA. See Typical Application Circuits, Fig.2. 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)".
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=25C 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=50mA. See Typical Application Circuits, Fig.2. 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)".
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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=25C 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
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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.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)". 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.
*
XC6381E501MR
PARAMETER Output Voltage
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=25C 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=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)". 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.
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L : 100H (SUMIDA, CR-54) SD : MA2Q735 (Schottky diode; MATSUSHITA) CL : 16V 47F (Tantalum capacitor, NICHICON, MCE) CIN : 16V 220F (Aluminium Electrolytic Capacitor)
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Fig.1 XC6381A Application
L : 100H (SUMIDA, CR-54) SD : MA2Q735 (Schottky diode; MATSUSHITA) CL : 16V 47F (Tantalum capacitor, NICHICON, MCE) CIN : 16V 220F (Aluminium Electrolytic Capacitor)
Fig.2 XC6381C Application
L : 100H (SUMIDA, CR-54) SD : MA2Q735 (Schottky diode; MATSUSHITA) CL : 16V 47F (Tantalum capacitor, NICHICON, MCE) CIN : 16V 220F (Aluminium Electrolytic Capacitor)
Fig.3 XC6381E Application
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