Datasheet

LTC3633
24
3633fc
For more information www.linear.com/LTC3633
Typical applicaTions
1.2V/2.5V 4MHz Buck Regulator
3.3V/1.8V Sequenced Regulator with 6V Input UVLO (V
OUT1
Enabled After V
OUT2
)
RUN1
RUN2
RT
LTC3633
BOOST2
3633 TA02
0.1µF
L2
0.82µH
R4
31.6k
R3
10k
SW2
V
ON2
V
IN2
V
IN1
V
FB2
BOOST1
MODE/SYNC
SW1
V
ON1
V
FB1
C
OUT2
22µF
V
OUT2
2.5V AT 3A
0.1µF
L1
0.47µH
R2
10k
R1
10k
C
OUT1
47µF
V
OUT1
1.2V AT 3A
V
IN
3.6V TO 15V
C1
22µF
×2
220pF
10pF
R5
80.6k
ITH2
V2P5
PHMODE
6.98k
ITH1
INTV
CC
C2
2.2µF
220pF
6.98k
10pF
PGNDSGND
RUN1
PGOOD2
RUN2
RT
LTC3633
BOOST2
3633 TA05
0.1µF
L2
1µH
R4
54.9k
R3
12.1k
SW2
V
ON2
V
IN2
V
IN1
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 15V
C1
47µF
×2
R5
162k
R7
154k
R8
40k
V2P5
ITH1
ITH2
INTV
CC
C2
2.2µF
MODE/SYNC
PHMODE
R6
100k
PGNDSGND