QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 875
HIGH EFFICIENCY BUCK-BOOST FLASH LED DRIVER
4
Figure 2.
Efficiency
DC875A Ltc3454 Efficiency
65
70
75
80
85
90
95
2
2.5
3
3.5
4
4.5
5
5.5
6
Vin Voltage
E
ffi
ci
en
cy
in
%
Iout=400mA
Iout=600mA
Iout=1000mA
DC875A Ltc3454 Efficiency
65
70
75
80
85
90
95
2
2.5
3
3.5
4
4.5
5
5.5
6
Vin Voltage
E
ff
ic
ie
n
cy
%
Iout=150mA
Iout=200mA
Iout=350mA
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