LTC3633A-3_15 Datasheet, PDF (24/28 Pages) Linear Technology – Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator

LTC3633A-2/LTC3633A-3
TYPICAL APPLICATIONS
1.2V/1.8V Buck Regulator with Coincident Tracking and 6V Input UVLO
V_IN
6V TO 20V
C1
47µF
R7
154k
×2
R8
40k
R5
196k
V_OUT2
1.2V AT 3A
C_OUT2
68µF
L2
0.47µH ^0.1µF
R4
R3
10k _10k
PV_IN2
RUN1
RUN2
PV_IN1 SV_IN
INTV_CC
ITH1
ITH2
MODE/SYNC
LTC3633A-2
PHMODE
RT
TRACKSS2
BOOST2
BOOST1
SW2
V_ON2
V_FB2
SGND PGND
SW1
V_ON1
V_FB1
C2
2.2µF
L1
0.1µF _0.68µH
R1
R6
R2
10k ^4.99k
15k
V_OUT1
1.8V AT 3A
C_OUT1
47µF
3633a23 TA04
Dual Output Regulator From Multiple Input Supplies
12V
(POWERS V_OUT2)
47µF
787k
100k
V_OUT2
3.3V AT 3A
R5
162k
L2
1µH
0.1µF
C_OUT2
22µF
R4
R3
54.9k _12.1k
PV_IN2 SV_IN PV_IN1
RUN2
RUN1
LTC3633A-2
INTV_CC
ITH1
RT
ITH2
MODE/SYNC
PHMODE
BOOST2
BOOST1
SW2
V_ON2
V_FB2
SGND PGND
SW1
V_ON1
V_FB1
1µF
274k
100k
C2
2.2µF
L1
0.1µF _0.68µH
R1
12.1k
R2
24.3k
5V
(POWERS V_OUT1)
47µF
V_OUT1
1.8V AT 3A
C_OUT1
47µF
3633a23 TA05
24
For more information www.linear.com/LTC3633A-2
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