Datasheet

LTC3425
22
3425f
Application with User Commanded Burst Mode Operation
and Buffered Reference Output Enabled
L1
3.3µH
C
IN
2.2µF
C1
0.1µF
R
LIM
75k
R
T
30.1k
BURST PWM
L2
3.3µH
L3
3.3µH
L4
3.3µH
C
IN
: TAIYO YUDEN JMK107BJ225MA
C
OUT
: TAIYO YUDEN JMK212BJ475MG (×4)
L1 TO L4: SUMIDA CDRH4D28
V
IN
V
OUT
V
REF
SWA
V
IN
= 1.8V TO 3V
SWB
LTC3425
SWC SWD
SGND
SHDN
V
OUTS
V
OUTA
V
OUTB
V
OUTC
V
OUTD
REFOUT
CCM
REFEN
SYNCIN
BURST
R
T
I
LIM
PGOOD
SYNCOUT
SS
FB
COMP
GNDA GNDB GNDC GNDD
+
C2
330pF
3425 TA04
C
OUT
4.7µF
×4
C
SS
0.01µF
R3
33k
R2
511k
R4
100k
PGOOD
R1
301k
V
OUT
3.3V
2A
R4
10k
C3
22pF
TYPICAL APPLICATIO S
U