LTC3633A-1_15 Datasheet, PDF (30/30 Pages) Linear Technology – Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator

LTC3633A/LTC3633A-1
TYPICAL APPLICATION
3.3V/1.8V Buck Regulator with 2.5V LDO Output
V_IN
12V
C1
47µF
×2
R5
162k
RUN1 ^VIN2
RUN2
V_{IN1 INTVCC}
ITH1
ITH2
PHMODE
MODE/SYNC
RT
LTC3633A _V2P5
C2
2.2µF
2.5V AT 10mA
1µF
V_OUT2
1.8V AT 3A
L2
0.68µH ^0.1µF
C_OUT2
47µF
R4
20k
BOOST2
BOOST1
SW2
V_ON2
R3 ^{VFB2 SGND PGND}
10k
SW1
V_ON1
V_FB1
L1
0.1µF _1µH
R1
R2
10k ^45.3k
V_OUT1
3.3V AT 3A
C_OUT1
22µF
3633a TA07
RELATED PARTS
PART
NUMBER
LTC3633
LTC3605
LTC3603
LTC3602
LTC3601
LTC3605A
LTC3604
LTC3626
DESCRIPTION
COMMENTS
15V, Dual 3A (I_OUT), 4MHz Synchronous Step-Down
DC/DC Converter
15V, 5A (I_OUT), 4MHz, Synchronous Step-Down
DC/DC Converter
15V, 2.5A (I_OUT), 3MHz, Synchronous Step-Down
DC/DC Converter
10V, 2.5A (I_OUT), 3MHz, Synchronous Step-Down
DC/DC Converter
15V, 1.5A (I_OUT), 4MHz, Synchronous Step-Down
DC/DC Converter
20V, 5A (I_OUT), 4MHz, Synchronous Step-Down
DC/DC Converter
15V, 2.5A (I_OUT), 4MHz, Synchronous Step-Down
DC/DC Converter
20V, 2.5A Synchronous Monolithic Step-Down
Regulator with Current and Temperature Monitoring
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
95% Efficiency, V_IN: 4V to 15V, V_OUT(MIN) = 0.6V, I_Q = 2mA, I_SD < 15µA,
4mm × 4mm QFN-24
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
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
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
95% Efficiency, V_IN: 4V to 20V, V_OUT(MIN) = 0.6V, I_Q = 2mA, I_SD < 15µA,
4mm × 4mm QFN-24
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
95% Efficiency, V_IN: 3.6V to 20V, V_OUT(MIN) = 0.6V, I_Q = 300μA, I_SD < 15μA,
3mm × 4mm QFN-20
30 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95_F0_o3_r5_m-_o7_r4_e1_in7_{formation www.linear.com/LTC3633A}
[phone] ^● FAX: [phone] ^● www.linear.com/LTC3633A
3633a1fb
LT 0515 REV B • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2012