Datasheet

LTC4353
11
4353f
Typical applicaTions
12V Supply with Capacitive Reservoir for Data Backup on Power Fail
for Disk Drive and Solid-State Drive Applications
3.3V Main and Auxiliary Supply Diode-OR
(Auxiliary Ideal Diode Disabled if Main Above 2.95V)
M1
Si4126DY
M2
Si4126DY
GATE1CPO1
CPO2
GND
EN1
EN2
4353 TA02
12V
C
VCC
0.1µF
STORAGE
DEVICE
C1
56nF
C2
56nF
V
IN1
V
CC
ONST1
ONST2
OUT1
OUT2
GATE2
V
IN2
LTC4353
R
CHRG
1k
BUCK
REG.
C
RESV
3F
C
RESV
: 3 PARALLEL STRINGS, EACH WITH 3 SERIES PM-5R0V305-R
M1
Si4126DY
M2
Si4126DY
GATE1CPO1
CPO2
GND
EN1
EN2
4353 TA03
3.3V
MAIN
3.3V
AUX
C
VCC
0.1µF
OUT
C1
56nF
C2
56nF
V
IN1
V
CC
ONST1
ONST2
OUT1
OUT2
GATE2
V
IN2
LTC4353
R3
39.2k
R4
10k