LTC3633A-2/LTC3633A-3
28
3633a23fb
For more information www.linear.com/LTC3633A-2
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LINEAR TECHNOLOGY CORPORATION 2012
LT 0515 REV B • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
2.5V Regulator with Battery Backup
PV
IN1
PV
IN2
SV
IN
INTV
CC
LTC3633A-2
ITH2
ITH1
PGOOD1
PGOOD2
3633a23 TA06
RT
V
ON1
V
ON2
V
FB2
V
FB1
84.5k
2.2µH
MAIN SUPPLY
5V TO 20V
2 CELL Li-Ion
BATTERY
5V TO 20V
C2
2.2µF
RUN2
RUN1
PHMODE
MODE/SYNC
BOOST1
SW1
0.1µF
BOOST2
SW2
0.1µF
PGNDSGND
2.2µH
C
OUT
47µF
×2
100k
274k 309k
100k
20k
20k
Q1
Q2
Q3
Q4
20k
20k
22µF
1µF
22µF
26.1k
604Ω
V
OUT
2.5V
AT 6A
13k
200pF
13k
200pF
324k
Q1, Q2: VISHAY SILICONIX P-CHANNEL MOSFET SI4953ADY
Q3, Q4: ROHM SEMICONDUCTOR NPN TRANSISTOR IMX1T110
PART
NUMBER
DESCRIPTION COMMENTS
LTC3633 15V, Dual 3A (I
OUT
), 4MHz Synchronous Step-Down
DC/DC Converter
95% Efficiency, V
IN
: 3.6V to 15V, V
OUT(MIN)
= 0.6V, I
Q
= 500µA, I
SD
< 13µA,
4mm × 5mm QFN-28, TSSOP-28E
LTC
3605 15V, 5A (I
OUT
), 4MHz, Synchronous Step-Down DC/
DC Converter
95% Efficiency, V
IN
: 4V to 15V, V
OUT(MIN)
= 0.6V, I
Q
= 2mA, I
SD
< 15µA,
4mm × 4mm QFN-24
LTC
3603 15V, 2.5A (I
OUT
), 3MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, V
IN
: 4.5V to 15V, V
OUT(MIN)
= 0.6V, I
Q
= 75µA, I
SD
< 1µA,
4mm × 4mm QFN-20, MSOP-16E
LT
C3602 10V, 2.5A (I
OUT
), 3MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, V
IN
: 4.5V to 10V, V
OUT(MIN)
= 0.6V, I
Q
= 75µA, I
SD
< 1µA,
3mm × 3mm QFN-16, MSOP-16E
LTC
3601 15V, 1.5A (I
OUT
), 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, V
IN
: 4.5V to 15V, V
OUT(MIN)
= 0.6V, I
Q
= 300µA, I
SD
< 1µA,
4mm × 4mm QFN-20, MSOP-16E
LTC
3605A 20V, 5A (I
OUT
), 4MHz, Synchronous Step-Down
DC/DC Converter
95
% Efficiency, V
IN
: 4V to 20V, V
OUT(MIN)
= 0.6V, I
Q
= 2mA, I
SD
< 15µA,
4mm × 4mm QFN-24
LTC
3604 15V, 2.5A (I
OUT
), 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, V
IN
: 3.6V to 15V, V
OUT(MIN)
= 0.6V, I
Q
= 300µA, I
SD
< 15µA,
3mm × 3mm QFN-16, MSOP-16E
LT
C3626 20V, 2.5A Synchronous Monolithic Step-Down
Regulator with Current and Temperature Monitoring
95% Efficiency, V
IN
: 3.6V to 20V, V
OUT(MIN)
= 0.6V, I
Q
= 300μA, I
SD
< 15μA,
3mm × 4mm QFN-20
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC3633A-2
