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参数资料
| 型号： | SC1408CS |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | MS-012AA, SO-8 |
| 文件页数： | 3/7页 |
| 文件大小： | 88K |
| 代理商： | SC1408CS |
1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
LOW VOLTAGE, BOOST DC-DC
CONTROLLER
SC1408
PRELIMINARY - September 17, 1999
3
ELECTRICAL CHARACTERISTICS
Unless specified: V
OUT = 5V; ILOAD = 0mA; TA = +25°C
PARAMETER
SYM
CONDITIONS
MIN
TYP
MAX UNITS
Input Voltage
T
A = 25°C
1.8
16.5
V
T
A = -40°C to +85°C
1.8
16.5
V
Supply Current
V
OUT = 16.5V,
SHDN
≤ 0.4V
T
A = -40°C to +85°C
110
140
uA
V
OUT = 10V,
1.6V
≤ SHDN ≤ 5V
T
A = -40°C to +85°C
2
10
A
Output Voltage
V
IN = 2.0V to 5.0V,
T
A = -40°C to +85°C
4.800
5.0
5.200
V
Load Regulation
V
IN = 2.0V, VOUT = 5V, ILOAD = 0mA to 500mA
60
mV/A
Line Regulation
V
IN = 2.7V to 4.0V, VOUT= 5V, ILOAD = 500mA
7
mV/V
Minimum Start Up Voltage
No load
1.8
V
Maximum Switch On Time
T
ON
9.6
16
22.4
s
Minimum Switch Off Time
T
OFF
1.4
2.3
3.2
s
Efficiency
V
IN = 4V, VOUT = 5V, ILOAD = 0mA to 500mA
87
%
Reference Voltage
V
REF
I
REF = 0A
T
A = -40°C to +85°C
1.176 1.200 1.224
V
Reference Load Regulation
0A < I
REF < 100A
-4
10
mV
Reference Line Regulation
5V < V
OUT < 16.5V
40
100
V/V
FB Trip Point Voltage
V
FB
T
A = 25°C
T
A = -40°C to +85°C
1.176
1.200
1.224
V
FB Input Current
I
FM
T
A = 25°C
T
A = -40°C to +85°C
-4
+40
nA
SHDN Input High Voltage
V
IH
V
OUT = 2.7V to 16.5V
1.6
V
SHDN Input Low Voltage
V
IL
V
OUT = 2.7V to 16.5V
0.4
V
SHDN Input Current
I
IN
V
OUT = 16.5V,
SHDN = 0V or 5V
+1A
Current Limit Trip Level
V
CS
V
OUT = 3V to 16.5V
T
A = 25°C
T
A = -40°C to +85°C
85
80
100
115
120
mV
ISENSE Input Current
I
SENSE
0.01
+1A
GATE Rise Time
V
OUT = 5V, 1nF from GATE to GND
50
ns
GATE Fall Time
V
OUT = 5V, 1nF from GATE to GND
50
GATE On Resistance
GATE = high or low
15
30
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