Datasheet

LTC3129-1
6
31291fa
For more information www.linear.com/LTC3129-1
Typical perForMance characTerisTics
T
A
= 25°C, unless otherwise noted.
Maximum Output Current
vs V
IN
and V
OUT
No Load Input Current
vs V
IN
and V
OUT
(PWM = 0V)Power Loss, V
OUT
= 15V
V
IN
(V)
2
I
OUT
(mA)
250
200
150
100
50
0
133 4
31291 G11
1510 1411 1285 96 7
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 4.1V
V
OUT
= 5V
V
OUT
= 6.9V
V
OUT
= 8.2V
V
OUT
= 12V
V
OUT
= 15V
OUTPUT CURRENT (mA)
0.01
POWER LOSS (mW)
1000
100
10
0.1
0.01
1
100.1
31291 G06b
10001 100
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 10V
V
IN
= 15V
PWM
BURST
OUTPUT CURRENT (mA)
0.01
EFFICIENCY (%)
100
90
80
70
60
30
20
10
0
50
40
100.1
31291 G06c
10001 100
BURST
PWM
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 10V
V
IN
= 15V
OUTPUT CURRENT (mA)
0.01
POWER LOSS (mW)
1000
100
10
0.1
0.01
1
100.1
31291 G06d
10001 100
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 10V
V
IN
= 15V
PWM
BURST
Efficiency, V
OUT
= 12V Power Loss, V
OUT
= 12V Efficiency, V
OUT
= 15V
Power Loss, V
OUT
= 6.9V Efficiency, V
OUT
= 8.2V Power Loss, V
OUT
= 8.2V
OUTPUT CURRENT (mA)
0.01
EFFICIENCY (%)
100
90
70
50
40
80
60
30
20
10
0
100.1
31291 G07
10001 100
BURST
PWM
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 10V
V
IN
= 15V
OUTPUT CURRENT (mA)
0.01
EFFICIENCY (%)
100
90
70
50
40
80
60
30
20
10
0
100.1
31291 G09
10001 100
PWM
BURST
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 10V
V
IN
= 15V
OUTPUT CURRENT (mA)
0.01
POWER LOSS (mW)
1000
100
10
1
0.1
0.01
100.1
31291 G08
10001 100
PWM
BURST
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 10V
V
IN
= 15V
OUTPUT CURRENT (mA)
0.01
POWER LOSS (mW)
1000
100
10
1
0.1
0.01
100.1
31291 G10
10001 100
BURST
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 10V
V
IN
= 15V
PWM
V
IN
(V)
2
I
IN
(µA)
5
4
3
2
1
0
12 14
31291 G12
16104 86
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 4.1V
V
OUT
= 5V
V
OUT
= 6.9V
V
OUT
= 8.2V
V
OUT
= 12V
V
OUT
= 15V