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