XC6371_2 Datasheet, PDF (6/19 Pages) Torex Semiconductor – PWM Controlled Step-Up DC/DC Controllers/Converters

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