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LTC1503CS8-2 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC1503CS8-2
Description  High Efficiency Inductorless Step-Down DC/DC Converters
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1503CS8-2 Datasheet(HTML) 3 Page - Linear Technology

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LTC1503-1.8/LTC1503-2
LTC1503-X Input Operating
Current vs Input Voltage
INPUT VOLTAGE (V)
2
30
TA = 25°C
40
6
1503 G01
20
10
3
4
5
50
IOUT = 0mA
TA = –40°C
TA = 85°C
LTC1503-1.8
Output Voltage vs Input Voltage
LTC1503-2
Output Voltage vs Input Voltage
LTC1503-1.8
Efficiency vs Input Voltage
INPUT VOLTAGE (V)
2
2.00
2.05
6
1503 G03
1.95
1.90
3
4
5
2.10
IOUT = 50mA
TA = –40°C
TA = 85°C
TA = 25°C
INPUT VOLTAGE (V)
2
60
80
6
1503-1.8/2 G05
40
20
3
4
5
100
“IDEAL”
LDO
TA = 25°C
IOUT = 100mA
IOUT = 1mA
LTC1503-1.8
Efficiency vs Output Current
LTC1503-X Input Shutdown
Current vs Input Voltage
INPUT VOLTAGE (V)
2
5
7.5
6
1503-1.8/2 TA02
2.5
0
3
4
5
10
VOUT = 0V
VSHDN/SS = 0V
TA = –40°C
TA = 85°C
TA = 25°C
INPUT VOLTAGE (V)
2
1.80
1.85
6
1503-1.8/2 G03
1.75
1.70
3
4
5
1.90
IOUT = 50mA
TA = –40°C
TA = 85°C
TA = 25°C
OUTPUT CURRENT (mA)
0.01
60
80
100
100
1503-1.8/2 G06
40
20
0
0.1
1
10
1000
VIN = 5V
VIN = 4.4V
VIN = 3.6V
VIN = 3V
VIN = 2.4V
TA = 25°C
LTC1503-2
Efficiency vs Output Current
OUTPUT CURRENT (mA)
0.01
60
80
100
100
1503-1.8/2 G07
40
20
0
0.1
1
10
1000
VIN = 5V
VIN = 4.4V
VIN = 3.6V
VIN = 3V
VIN = 2.4V
TA = 25°C
LTC1503-1.8
Output Voltage vs Output Current
OUTPUT CURRENT (mA)
0.01
1.80
1.82
1.84
100
1503-1.8/2 G08
1.78
1.76
1.74
0.1
1
10
1000
VIN = 3.3V
TA = –40°C
TA = 85°C
TA = 25°C
LTC1503-2
Output Voltage vs Output Current
OUTPUT CURRENT (mA)
0.01
2.00
2.02
2.04
100
1503-1.8/2 G09
1.98
1.96
1.94
0.1
1
10
1000
VIN = 3.3V
TA = –40°C
TA = 85°C
TA = 25°C
TYPICAL PERFOR A CE CHARACTERISTICS



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