SC1545 查看數據表（PDF） - Semtech Corporation
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SC1545 Datasheet PDF : 8 Pages
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500mA SmartLDOTM With Power Up
Signal Sequencing
SC1545
PRELIMINARY - January 17, 2000
TYPICAL CHARACTERISTICS
12VIN Quiescent Current vs.
Junction Temperature
1000
12VIN = 12V
900
800
700
600
500
400
300
200
100
0
0
25
50
75
100
125
TJ (°C)
5VSTBY Quiescent Current (OFF) vs.
Junction Temperature
5.0
5VSTBY = 5V
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
25
50
75
100
125
TJ (°C)
LDO Output Voltage vs.
Junction Temperature
2.550
5VSTBY = 5V
2.545
2.540
2.535
2.530
IO = 1mA
2.525
2.520
2.515
2.510
IO = 500mA
2.505
2.500
0
25
50
75
100
125
TJ (°C)
5VSTBY Quiescent Current (ON) vs.
Junction Temperature
10.0
5VSTBY = 5V
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
0
25
50
75
100
125
TJ (°C)
4.5
4.5
4.4
4.4
4.3
4.3
4.2
4.2
4.1
4.1
4.0
0
5VSTBY Under Voltage Lockout vs.
Junction Temperature
5VSTBY RISING
5VSTBY FALLING
25
50
75
100
125
TJ (°C)
LDO Line Regulation vs.
Junction Temperature
10
5VSTBY = 4.7V to 5.3V
9
8
7
6
5
4
3
2
1
0
0
25
50
75
100
125
TJ (°C)
© 2000 SEMTECH CORP.
5
652 MITCHELL ROAD NEWBURY PARK CA 91320
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