LT3517
TYPICAL APPLICATION
5.5V SEPIC Converter with Short-Circuit Protection
Efficiency
C5
L1
R
SENSE
10μF
D1
4.3μH
V
0.22Ω
OUT
V
90
80
70
60
50
40
30
IN
5.5V
3V
350mA
C2
10μF
C2
2.2μF
R1
L2
221k
4.3μH
V
PWM
SW
FB
IN
CTRL
SYNC
SHDN
TGEN
TG
ISP
ISN
SHDN
LT3517
V
REF
R
T
R2
49.9k
V
C
GND
SS
R3
10k
C4
10nF
R
T
C3
0.1μF
6.04k
2MHz
0
50 100 150 200 250 300 350
(mA)
I
LOAD
3517 TA07a
3517 TA07b
C1: KEMET C0805C225K4RAC
C2, C5: KEMET C1206C106K4RAC
C3: MURATA GRM21BR71H104KA01B
C4: MURATA GCM033R71A103KA03
D1: ZETEX ZLLS1000TA
L1, L2: TOKO B992AS-4R3N
3517fa
17