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| LTC3402_15 Datasheet, PDF (14/16 Pages) Linear Technology – 2A, 3MHz Micropower Synchronous Boost Converter | |||
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LTC3402
TYPICAL APPLICATIO S
High Efficiency, Compact CCFL Supply with Remote Dimming
C3
27pF
1kV
65
T1
1 10 2 3 4
VIN = 2.5V TO 4.2V
R1
300Ω
D1
C2
Q1 0.22μF Q2
CCFL
L1
33μF
R4
D4 20k
DIMMING
INPUT
0V TO 2.5V
R5
Li-Ion 1M
C1
10μF
LTC3402
3
4
VIN
SW
10
SHDN
7
VOUT
2
8
MODE/SYNC FB
6
PGOOD
1
Rt
9
VC
5
GND
Rt
150k
D2
D3
R2
10k
C5
1μF
C4
0.1μF
R3
1k
3402 TA06
C1: TAIYO YUDEN JMK212BJ106MG
C2: PANASONIC ECH-U
D1: ZETEX ZHCS-1000
D2 TO D4: 1N4148
L1: SUMIDA CD-54-330MC
Q1, Q2: ZETEX FMMT-617
T1: SUMIDA C1Q122
CCFL BACKLIGHT APPLICATION CIRCUITS
CONTAINED IN THIS DATA SHEET ARE
COVERED BY U.S. PATENT NUMBER 5408162
AND OTHER PATENTS PENDING
3402fb
14
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