LTC3602 datasheet(28/28 Pages) LINER

28 / 28 page

LTC3633A-2/LTC3633A-3

3633a23f

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

LT 0912 • PRINTED IN USA

RELATED PARTS

TYPICAL APPLICATION

2.5V Regulator with Battery Backup

PVIN1

PVIN2

SVIN

INTVCC

LTC3633A-2

ITH2

ITH1

PGOOD1

PGOOD2

3633a23 TA06

VON1

VON2

VFB2

VFB1

84.5k

2.2μH

MAIN SUPPLY

5V TO 20V

2 CELL Li-Ion

BATTERY

5V TO 20V

2.2μF

RUN2

RUN1

PHMODE

MODE/SYNC

BOOST1

SW1

0.1μF

BOOST2

SW2

0.1μF

PGND

SGND

2.2μH

COUT

47μF

×2

100k

274k

309k

100k

20k

22μF

1μF

22μF

26.1k

604Ω

VOUT

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 (IOUT), 4MHz Synchronous Step-Down

DC/DC Converter

95% Efﬁciency, VIN: 3.6V to 15V, VOUT(MIN) = 0.6V, IQ = 500μA, ISD < 13μA,

4mm × 5mm QFN-28, TSSOP-28E

LTC3605

15V, 5A (IOUT), 4MHz, Synchronous Step-Down DC/

DC Converter

95% Efﬁciency, VIN: 4V to 15V, VOUT(MIN) = 0.6V, IQ = 2mA, ISD < 15μA,

4mm × 4mm QFN-24

LTC3603

15V, 2.5A (IOUT), 3MHz, Synchronous Step-Down

DC/DC Converter

95% Efﬁciency, VIN: 4.5V to 15V, VOUT(MIN) = 0.6V, IQ = 75μA, ISD < 1μA,

4mm × 4mm QFN-20, MSOP-16E

LTC3602

10V, 2.5A (IOUT), 3MHz, Synchronous Step-Down

DC/DC Converter

95% Efﬁciency, VIN: 4.5V to 10V, VOUT(MIN) = 0.6V, IQ = 75μA, ISD < 1μA,

3mm × 3mm QFN-16, MSOP-16E

LTC3601

15V, 1.5A (IOUT), 4MHz, Synchronous Step-Down

DC/DC Converter

95% Efﬁciency, VIN: 4.5V to 15V, VOUT(MIN) = 0.6V, IQ = 300μA, ISD < 1μA,

4mm × 4mm QFN-20, MSOP-16E

LTC3605A

20V, 5A (IOUT), 4MHz, Synchronous Step-Down

DC/DC Converter

95% Efﬁciency, VIN: 4V to 20V, VOUT(MIN) = 0.6V, IQ = 2mA, ISD < 15μA,

4mm × 4mm QFN-24

LTC3604

15V, 2.5A (IOUT), 4MHz, Synchronous Step-Down

DC/DC Converter

95% Efﬁciency, VIN: 3.6V to 15V, VOUT(MIN) = 0.6V, IQ = 300μA, ISD < 15μA,

3mm × 3mm QFN-16, MSOP-16E

LT3626

20V, 2.5A Synchronous Monolithic Step-Down

Regulator with Current and Temperature Monitoring

95% Efﬁciency, VIN: 3.6V to 20V, VOUT(MIN) = 0.6V, IQ = 300μA, ISD < 15μA,

3mm × 4mm QFN-20

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