1638 查看數據表（PDF） - STANSON TECHNOLOGY
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1638 Datasheet PDF : 7 Pages
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Step-Up DC/DC Converter
ST1638
High Efficiency PFM
ELECTRICAL CHARACTERISTICS (Ta=25℃, Vcc=15V, unless otherwise specified.)
Symbol
△VOUT
IIN
VSTART
VHOLD
IIN
IS1
IS2
RON
Parameter
Output Voltage Accuracy
Input Voltage
Start Up Voltage
Hold On Voltage
Input Current at No Load
Supply Current
Supply Current
SW Switch-On Resistance
ILEAKAGE
Fosc
DOSC
SW Leakage Current
Max Oscillator Freq.
Oscillator Duty Cycle
Efficiency
Conditions
IOUT = 1 mA, VIN: 0→2V
IOUT = 1 mA, VIN: 2→0V
IOUT = 0 mA
VS = VOUT X 0.95
VS = VOUT + 0.5V
VS = VOUT X 0.95,
VSW = 0.4V
VSW = 6V
VS = VOUT X 0.95
VS = VOUT X 0.95
Min.
-2.5
0.7
20
1
80
65
Typ. Max. Unit
2.5 %
6V
0.8 0.9 V
V
15
μA
70 μA
9
μA
1.3 Ω
0.5 μA
120 160 KHz
75 85 %
85
%
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
TEL: (650) 9389294 FAX: (650) 9389295
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