LTC3104 datasheet(26/26 Pages) LINER

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LTC3630

3630fb

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

LT 0612 REV B • PRINTED IN USA

RELATED PARTS

TYPICAL APPLICATION

4.5V to 65V Input to 3.3V Output, 1.5A Regulator

VOUT

3.3V

1.5A

3630 TA06

2.2μH

ROSC

105k

RITH

4.32k

105k

COUT: TDK C3225X5ROJ107M

L2: VISHAY IHLP-2525CZ-01

CIN: MURATA GCM32DR72A225KA64L

C1: TDK CGA6P1X7R1C226M

L1: COILCRAFT MSS1048T-333

CVCC

1μF

CITH

1nF

COUT

100μF

SYNC/MODE

PGOOD

ITH

VFB

RUN

TRACK/SS

PGND

INTVCC

PVIN

BOOST

PGND

LTC3603

475k

CBST

0.22μF

CFB

10pF

VFB

33μH

VIN

RUN

200k

CIN

4.7μF

VIN*

4.5V TO 65V

FBO

ISET

VPRG1

VPRG2

GND

LTC3630

102k

22μF

*WHEN VIN > 15V, LTC3630 SWITCHES AND VX IS REGULATED TO 15V; WHEN

VIN < 15V, LTC3630 OPERATES IN DROPOUT AND VX FOLLOWS VIN

PART NUMBER DESCRIPTION

COMMENTS

LTC3642

45V (Transient to 60V) 50mA Synchronous Step-Down

DC/DC Converter

VIN: 4.5V to 45V, VOUT(MIN) = 0.8V, IQ = 12μA, ISD = 3μA,

3 × 3 DFN-8, MSOP-8

LTC3631

45V (Transient to 60V) 100mA Synchronous Step-Down

DC/DC Converter

VIN: 4.5V to 45V, VOUT(MIN) = 0.8V, IQ = 12μA, ISD = 3μA,

3 × 3 DFN-8, MSOP-8

LTC3632

50V (Transient to 60V) 20mA Synchronous Step-Down

DC/DC Converter

VIN: 4.5V to 50V, VOUT(MIN) = 0.8V, IQ = 12μA, ISD = 3μA,

3 × 3 DFN-8, MSOP-8

LTC3103

15V, 300mA Synchronous Step-Down DC/DC Converter

with Ultralow Quiescent Current

VIN: 2.5V to 15V, VOUT(MIN) = 0.6V, IQ = 1.8μA, ISD = 1μA,

3 × 3 DFN-10, MSOP-10E

LTC3104

15V, 300mA Synchronous Step-Down DC/DC Converter

with Ultralow Quiescent Current and 10mA LDO

VIN: 2.5V to 15V, VOUT(MIN) = 0.6V, IQ = 2.6μA, ISD = 1μA,

4 × 3 DFN-14, MSOP-16E

LT3970

40V, 350mA, 2.2MHz High Efficiency Micropower Step-Down

DC/DC Converter with IQ = 2.5μA

VIN: 4.2V to 40V, VOUT(MIN) = 1.21V, IQ = 2.5μA, ISD < 1μA,

3 × 2 DFN-10, MSOP-10

LT3990

62V, 350mA, 2.2MHz High Efficiency Micropower Step-Down

DC/DC Converter with IQ = 2.5μA

VIN: 4.2V to 62V, VOUT(MIN) = 1.21V, IQ = 2.5μA, ISD < 1μA,

3 × 3 DFN-10, MSOP-16E

LT3971

38V, 1.2A, 2.2MHz High Efficiency Micropower Step-Down

DC/DC Converter with IQ = 2.8μA

VIN: 4.3V to 38V, VOUT(MIN) = 1.19V, IQ = 2.8μA, ISD < 1μA,

3 × 3 DFN-10, MSOP-10E

LT3991

55V, 1.2A, 2.2MHz High Efficiency Micropower Step-Down

DC/DC Converter with IQ = 2.8μA

VIN: 4.3V to 55V, VOUT(MIN) = 1.19V, IQ = 2.8μA, ISD < 1μA,

3 × 3 DFN-10, MSOP-10E

LT3682

36V, 60VMAX, 1A, 2.2MHz High Efficiency Micropower

Step-Down DC/DC Converter

VIN: 3.6V to 36V, VOUT(MIN) = 0.8V, IQ = 75μA, ISD < 1μA,

3 × 3 DFN-12

LTC3891

Low IQ, 60V Synchronous Step-Down Controller

VIN: 4V to 60V, VOUT(MIN) = 0.8V, IQ = 50μA, ISD = 14μA,

3 × 4 QFN-20, TSSOP-20E

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