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| LTC3129_15 Datasheet, PDF (5/30 Pages) Linear Technology – 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3A Quiescent Current | |||
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LTC3129
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Power Loss, VOUT = 3.3V
1000
100
PWM
10
1
0.1
0.01
0.01
BURST
VIN = 2.5V
VIN = 3.6V
VIN = 5V
VIN = 10V
VIN = 15V
0.1
1
10 100 1000
OUTPUT CURRENT (mA)
3129 G04
Efficiency, VOUT = 5V
100
90
BURST
80
70
60
50
PWM
40
30
20
10
0
0.01
VIN = 2.5V
VIN = 3.6V
VIN = 5V
VIN = 10V
VIN = 15V
0.1
1
10
100 1000
OUTPUT CURRENT (mA)
3129 G05
Power Loss, VOUT = 5V
1000
100
PWM
10
1
0.1
0.01
0.01
BURST
VIN = 2.5V
VIN = 3.6V
VIN = 5V
VIN = 10V
VIN = 15V
0.1
1
10
100 1000
OUTPUT CURRENT (mA)
3129 G06
Efficiency, VOUT = 12V
100
90
B4U0RST
80
70
60
50
PWM
40
30
20
10
0
0.01
VIN = 2.5V
VIN = 3.6V
VIN = 5V
VIN = 10V
VIN = 15V
0.1
1
10 100 1000
OUTPUT CURRENT (mA)
3129 G07
Power Loss, VOUT = 12V
1000
PWM
100
10
1
0.1
0.01
0.01
BURST
VIN = 2.5V
VIN = 3.6V
VIN = 5V
VIN = 10V
VIN = 15V
0.1
1
10
100 1000
OUTPUT CURRENT (mA)
3129 G08
Power Loss, VOUT = 15V
1000
100
PWM
Maximum Output Current
vs VIN and VOUT
250
200
10
1
0.1
0.01
0.01
BURST
VIN = 2.5V
VIN = 3.6V
VIN = 5V
VIN = 10V
VIN = 15V
0.1
1
10 100 1000
OUTPUT CURRENT (mA)
3129 G10
150
VOUT = 2.5V
100
VOUT = 3.3V
VOUT = 4.1V
VOUT = 5V
50
VOUT = 6.9V
VOUT = 8.2V
VOUT = 12V
VOUT = 15V
0
2 3 4 5 6 7 8 9 10 11 12 13 14 15
VIN (V)
3129 G11
For more information www.linear.com/LTC3129
Efficiency, VOUT = 15V
100
90 BURST
80
70
60
50
PWM
40
30
20
10
0
0.01
VIN = 2.5V
VIN = 3.6V
VIN = 5V
VIN = 10V
VIN = 15V
0.1
1
10
100 1000
OUTPUT CURRENT (mA)
3129 G09
No Load Input Current
vs VIN and VOUT (PWM = 0V)
30
VOUT = 2.5V
VOUT = 5V
25
VOUT = 10V
VOUT = 15V
20
FB DIVIDER CURRENT = 2µA
15
10
5
0
2.5 4.5 6.5 8.5 10.5 12.5 14.5
VIN (V)
3129 G12
3129fb
5
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