LTC1555C Ver la hoja de datos (PDF) - Linear Technology
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LTC1555C Datasheet PDF : 12 Pages
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LTC1555/LTC1556
TYPICAL PERFORMANCE CHARACTERISTICS
Operating Current
vs Input Voltage
120
NO EXTERNAL LOAD
100
80
60
85°C
25°C
– 40°C
40
2
4
6
8
VIN INPUT VOLTAGE (V)
10
1555/56 G01
VCC Output Voltage
vs Input Voltage (3V Mode)
3.2
IVCC = 10mA
M0 = DVCC
M1 = 0V
3.1 COUT = 10µF
TA = 25°C
3.0
Shutdown Current
vs Input Voltage
20
15
10
85°C
25°C
5
– 40°C
0
2
4
6
8
10
VIN INPUT VOLTAGE (V)
1555/56 G02
VCC Output Voltage Turn-On Time,
SS Enabled
VCC Output Voltage
vs Input Voltage (5V Mode)
5.2
IVCC = 10mA
M0 = DVCC
M1 = DVCC
5.1 COUT = 10µF
TA = 25°C
5.0
4.9
4.8
2
4
6
8
VIN INPUT VOLTAGE (V)
10
1555/56 G03
VCC Output Voltage Turn-On Time,
SS Disabled
2.9
2.8
2
4
6
8
VIN INPUT VOLTAGE (V)
10
1555/56 G04
VIN = 3V
SS = 0V
3V VCC Efficiency vs Input Voltage
100
VCC = 3V
IVCC = 10mA
TA = 25°C
80
1ms/DIV
1555/56 G05
VIN = 3V
SS = DVCC
1ms/DIV
5V VCC Efficiency vs Input Voltage
100
VCC = 5V
IVCC = 10mA
TA = 25°C
80
1555/56 G06
60
60
40
40
20
0
2
4
6
8
10
VIN INPUT VOLTAGE (V)
1555/56 G07
20
2
4
6
8
10
12
VIN INPUT VOLTAGE (V)
1555/56 G08
4
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