0311_XC6381 Datasheet, PDF (9/12 Pages) Torex Semiconductor – PFM CONTROLLED STEP UP DC/DC CONVERTERS

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XC6381C301MR VOUT=3.0V
Ta=25°C
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
SYMBOL
VOUT
VIN
VST
VHLD
IIN
IDD1
IDD2
RSWON
ILXL
DTY
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.
MIN
2.925
10
0.70
53
TYP
3.000
0.80
4.6
29.3
2.1
5.2
58
MAX
3.075
0.90
9.3
58.7
4.2
7.9
1.0
UNITS
V
V
V
V
µA
µA
µA
Ω
µA
63
%
Maximum Oscillation Frequency MAXFOSC
Same as IDD1. 58% duty.
131.75 155 178.25 kHz
Stand-by Current
ISTB
Same as IDD1.
0.5 µA
CE "High" Voltage
CE "Low" Voltage
VCEH
VCEL
Same as IDD1.
Existence of Lx Oscillation.
0.75
Same as IDD1.
Disappearance of Lx Oscillation.
V
0.20 V
4
CE "High" Current
ICEH
Same as IDD1. VCE=VOUT ✕ 0.95.
0.25 µA
CE "Low" Current
ICEL
Same as IDD1. VCE=0V.
–0.25 µA
Lx Limit Voltage
VLxLMT
0.7
1.1
V
Efficiency
EFFI
L,SD,CL etc. connected
80
%
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)<1.0µA 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
Ta=25°C
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
SYMBOL
VOUT
VIN
VST
VHLD
IIN
IDD1
IDD2
RSWON
ILXL
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.
MIN
4.875
10
0.70
TYP
5.000
0.80
5.3
47.8
2.4
2.8
MAX
5.125
0.90
10.6
95.7
4.8
4.3
1.0
UNITS
V
V
V
V
µA
µA
µA
Ω
µA
Duty Ratio
DTY
Same as IDD1.
Measuring of LX waveform.
53
58
63
%
Maximum Oscillation Frequency
Stand-by Current
CE "High" Voltage
MAXFOSC
ISTB
VCEH
CE "Low" Voltage
CE "High" Current
CE "Low" Current
Lx Limit Voltage
Efficiency
VCEL
ICEH
ICEL
VLxLMT
EFFI
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
131.75 155 178.25 kHz
0.5 µA
0.75
V
0.20 V
0.25 µA
–0.25 µA
0.7
1.1
V
85
%
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)<1.0µA 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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