Datasheet

LTC3633A-2/LTC3633A-3
23
3633a23f
TYPICAL APPLICATIONS
1.8V/2.5V 4MHz Buck Regulator
RUN1
RUN2
RT
LTC3633A-2
BOOST2
3633a23 TA02
0.1µF
L2
0.82µH
R4
31.6k
R3
10k
SW2
V
ON2
PV
IN2
PV
IN1
SV
IN
V
FB2
BOOST1
MODE/SYNC
SW1
V
ON1
V
FB1
C
OUT2
22µF
V
OUT2
2.5V AT 3A
0.1µF
L1
0.68µH
R2
24.3k
R1
12.1k
C
OUT1
47µF
V
OUT1
1.8V AT 3A
V
IN
12V
C1
22µF
×2
220pF
10pF
R5
80.6k
ITH2 PHMODE
6.98k
ITH1
INTV
CC
C2
2.2µF
220pF
6.98k
10pF
PGNDSGND
3.3V/1.8V Sequenced Regulator with 6V Input UVLO (V
OUT1
Enabled After V
OUT2
)
RUN1
PGOOD2
RUN2
RT
LTC3633A-2
BOOST2
3633a23 TA03
0.1µF
L2
1µH
R4
54.9k
R3
12.1k
SW2
V
ON2
PV
IN2
PV
IN1
SV
IN
V
FB2
BOOST1
SW1
V
ON1
V
FB1
C
OUT2
22µF
V
OUT2
3.3V AT 3A
0.1µF
L1
0.68µH
R2
24.3k
R1
12.1k
C
OUT1
47µF
V
OUT1
1.8V AT 3A
V
IN
6V TO 20V
C1
47µF
×2
R5
162k
R7
154k
R8
40k
ITH1
ITH2
INTV
CC
C2
2.2µF
MODE/SYNC
PHMODE
R6
100k
PGNDSGND