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XC6371 Datasheet(PDF) 6 Page - Torex Semiconductor

Part # XC6371
Description  PWM Controlled Step-Up DC/DC Controllers/Converters
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC6371 Datasheet(HTML) 6 Page - Torex Semiconductor

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XC6371/XC6372/XC6373 Series
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Output Voltage
VOUT
4.875
5.000
5.125
V
Maximum Input Voltage
VIN
10
-
-
V
Operation Start Voltage
VST1
External Components Connected, IOUT=1mA
-
-
0.90
V
Operation Start Voltage
VST2
No external components. Apply voltage to VOUT,
Lx : 10kΩ pull-up to 5V
-
-
0.80
V
No Load Input Current
IIN
VIN=VOUT×0.8, IOUT=0mA (*1)
-
12.8
25.7
μ
A
Supply Current 1
IDD1
Same as VST2,
Apply output voltage×0.95 to VOUT
-
80.2
133.8
μ
A
Supply Current 2
IDD2
Same as VST2,
Apply output voltage×1.1 to VOUT
-
8.2
16.5
μ
A
Lx Switch-On
Resistance
RSWON
Same as IDD1, VLx=0.4V
-
1.4
2.4
Ω
Lx Leak Current
ILXL
No external components, VOUT =VLX=10V
-
-
1.0
μ
A
Oscillation Frequency
FOSC
Same as IDD1, Measuring of Lx waveform
85
100
115
kHZ
Maximum Duty Ratio
MAXDTY
Same as IDD1, Measuring of Lx waveform
80
87
92
%
PFM Duty Ratio (*4)
PFMDTY
Same as IDD1, Measuring of Lx waveform
10
17
25
%
Stand-by Current
ISTB
Same as IDD1
-
-
0.5
μ
A
CE "High" Voltage
VCEH
Same as IDD1, Lx Oscillation start
0.75
-
-
V
CE "Low" Voltage
VCEL
Same as IDD1, Lx Oscillation stop
-
-
0.20
V
CE "High" Current
ICEH
Same as IDD1, VCE=VOUT×0.95
-
-
0.25
μ
A
CE "Low" Current
ICEL
Same as IDD1, VCE=0V
-
-
-0.25
μ
A
Lx Limit Voltage
VLxLMT
Same as IDD1, Apply output voltage to Lx,
Voltage required to produce FOSC×2
0.7
-
1.3
V
Efficiency
EFFI
-
85
-
%
Slow-Start Time
TSS
4.0
10.0
20.0
ms
XC6371/72C501PR
VOUT=5.0V, FOSC=100kHz
Ta=25℃
NOTE: Unless otherwise stated, connect CE to VOUT, VIN=VOUT×0.6, IOUT=50mA. See Typical Application Circuits, Circuit 2.
*1: The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0μA at reverse voltage (VR)=10.0V.(XC6372C)
*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)".
*3: When PWM operates at PWM Mode.
*4: When PFM operates at PFM Mode.(XC6372C)
ELECTRICAL CHARACTERISTICS (Continued)


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