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参数资料
| 型号： | SC1578CS |
| 厂商： | Semtech Corporation |
| 英文描述： | CAP 47UF 50V ELECT TG SMD |
| 中文描述： | 高效降压型DC - DC转换器 |
| 文件页数： | 2/5页 |
| 文件大小： | 130K |
| 代理商： | SC1578CS |
1997 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
HIGH-EFFICIENCY STEP-DOWN
DC-DC CONVERTER
SC1578
January 29, 1998
Parameter
Conditions
Min
Typ
Max
Units
Operation Voltage
4
24
V
Quiescent Current
V
FB = 1.5V
90
160
A
Shutdown Mode Current
V
SHDN = 0V
8
20
A
Internal Reference Voltage
1.16
1.22
1.28
V
Driver Sinking “On resistance”
16
Driver Sourcing “On resistance”
11
Current Sense Comparator
Threshold
1578
1578A
V
CS+ = 13V
42
52
57
72
62
mV
Shutdown Threshold
0.8
1.5
2.4
V
SHDN Pin Leakage Current
V
SHDN < 15V
1
A
Duty Cycle
V
DUTY = VIN
71
%
Oscillator Frequency
V
DUTY = VIN
225
kHz
TYPICAL PERFORMANCE CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, T
A = 25°C, VIN = 13V
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