LTC1514-3.3/LTC1514-5
U W
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1514-3.3
LTC1514-5
LTC1514-3.3 Output Voltage
Ripple vs Input Voltage
250
Efficiency vs Output Current
Efficiency vs Output Current
100
80
60
40
20
0
100
80
60
40
20
0
V
T
= 3.3V
V
I
A
= 3.3V
OUT
A
OUT
OUT
V
IN
= 6V
V
IN
= 2.7V
= 25°C
= 10mA
V
= 2V
IN
T
= 25°C
200
150
100
50
V
= 4.4V
= 2.7V
IN
V
IN
= 3.3V
V
IN
V
IN
= 8V
C
= 10µF
OUT
V
IN
= 6V
C
= 22µF
OUT
C
= 47µF
OUT
V
A
= 5V
OUT
T
= 25°C
0
0.01
0.1
1
10
100
0.01
0.1
1
10
100
0
2
6
8
4
10
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
INPUT VOLTAGE (V)
1514 G01
1514 G02
1514 G03
LTC1514-5 Output Voltage Ripple
vs Input Voltage
LTC1514-3.3 Output Voltage
vs Input Voltage
LTC1514-5 Operating Current
vs Input Voltage
3.45
3.40
3.35
3.30
3.25
3.20
250
200
150
100
50
120
100
80
V
C
T
= 3.3V
V
I
A
= 5V
V
I
= 5V
= 0mA
OUT
OUT
A
OUT
OUT
OUT
OUT
= 10µF
= 10mA
= 25°C
T
= 25°C
C
= 10µF
OUT
25°C
85°C
C
= 22µF
OUT
60
–40°C
C
= 47µF
OUT
40
0
20
0
2
4
6
8
10
0
2
4
6
8
10
0
2
4
6
8
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1514 G05
1514 G04
1514 G06
LTC1514-3.3
Efficiency vs Input Voltage
LTC1514-5
Efficiency vs Input Voltage
LTC1514-X Shutdown Supply
Current vs Input Voltage
25
20
15
10
5
100
80
60
40
20
100
80
SHDN = 0V
V
= 3.3V
V
= 5V
OUT
OUT
OUT
OUT
I
= 10mA
I
= 10mA
T
A
= 25°C
T
A
= 25°C
85°C
25°C
60
–40°C
40
0
20
0
2
4
6
8
10
0
2
4
6
8
10
2
4
6
8
10
12
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1514 G09
1514 G07
1514 G08
3
Linear [ Linear ]
