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LT3502/LT3502A

3502fc

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

LT 0908 REV C • PRINTED IN USA

PART NUMBER

DESCRIPTION

COMMENTS

LT1766

60V, 1.2A (IOUT), 200kHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 5.5V to 60V, VOUT(MIN) = 1.2V, IQ = 2.5mA, ISD = 25μA,

TSSOP16/TSSOP16E Packages

LT1933

500mA (IOUT), 500kHz, Step-Down Switching Regulator in

SOT-23

VIN: 3.6V to 36V, VOUT(MIN) = 1.2V, IQ = 1.6mA, ISD < 1μA,

ThinSOT

TM Package

LT1936

36V, 1.4A (IOUT), 500kHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.6V to 36V, VOUT(MIN) = 1.2V, IQ = 1.9mA, ISD < 1μA,

MS8E Package

LT1940

Dual 25V, 1.4A (IOUT), 1.1MHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.6V to 25V, VOUT(MIN) = 1.20V, IQ = 3.8mA, ISD < 30μA,

TSSOP16E Package

LT1976/LT1977

60V, 1.2A (IOUT), 200kHz/500kHz High Efﬁciency Step-

Down DC/DC Converters with Burst Mode® Operation

VIN: 3.3V to 60V, VOUT(MIN) = 1.20V, IQ = 100μA, ISD < 1μA,

TSSOP16E Package

LTC 3407/LTC3407-2

Dual 600mA/800mA, 1.5MHz/2.25MHz, Synchronous

Step-DownDC/DC Converters

VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 40μA, ISD <1μA,

3mm × 3mm DFN, MS10E Package

LT3434/LT3435

60V, 1.2A (IOUT), 200kHz/500kHz High Efﬁciency Step-

Down DC/DC Converters with Burst Mode Operation

VIN: 3.3V to 60V, VOUT(MIN) = 1.20V, IQ = 100μA, ISD < 1μA,

TSSOP16E Package

LT3437

60V, 400mA (IOUT), Micropower Step-Down DC/DC

Converter with Burst Mode Operation

VIN: 3.3V to 60V, VOUT(MIN) = 1.25V, IQ = 100μA, ISD < 1μA,

DFN Package

LT3493

36V, 1.4A (IOUT), 750kHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.6V to 36V, VOUT(MIN) = 0.8V, IQ = 1.9mA, ISD < 1μA,

DFN Package

LT3501

Dual 25V, 3A (IOUT), 1.5MHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.3V to 25V, VOUT(MIN) = 0.8V, IQ = 3.7mA, ISD < 10μA,

TSSOP20E Package

LT3503

20V, 1A (IOUT), 2.2MHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.6V to 20V, VOUT(MIN) = 0.78V, IQ = 1.9mA, ISD < 1μA,

2mm × 3mm DFN Package

LT3505

36V, 1.2A (IOUT), 3MHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.6V to 36V, VOUT(MIN) = 0.78V, IQ = 2mA, ISD < 2μA,

3mm × 3mm DFN, MS8E Packages

LT3506/LT3506A

Dual 25V, 1.6A (IOUT), 575kHz/1.1MHz, High Efﬁciency

Step-Down DC/DC Converters

VIN: 3.6V to 25V, VOUT(MIN) = 0.8V, IQ = 3.8mA, ISD < 30μA,

4mm × 5mm DFN Package

LT3508

Dual 36V, 1.4A (IOUT), 2.5MHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.6V to 36V, VOUT(MIN) = 0.8V, IQ = 4.3mA, ISD < 1μA,

4mm × 4mm QFN, TSSOP16E Packages

LT3510

Dual 25V, 2A (IOUT), 1.5MHz, High Efﬁciency Step-Down

DC/DC Converter

VIN: 3.3V to 25V, VOUT(MIN) = 0.8V, IQ = 3.7mA, ISD < 10μA,

TSSOP20E Package

LTC3548

Dual 400mA + 800mA, 2.25MHz Synchronous Step-Down

DC/DC Converter

VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 40μA, ISD < 1μA,

3mm × 3mm DFN, MS10E Packages

Burst Mode is a registered trademark of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation.

TYPICAL APPLICATION

5V Step-Down Converter

VIN

0.1μF

3502 TA06a

10μH

SHDN

BOOST

LT3502A

GND

OFF ON

10μF

10k

52.3k

1μF

VIN

6.7V TO 40V

VOUT

500mA

C1: LMK316BJ106ML-BR

L1: LQH43CN100K03

VIN

0.1μF

3502 TA06b

22μH

SHDN

BOOST

LT3502

GND

OFF ON

22μF

10k

52.3k

1μF

VIN

6.4V TO 40V

VOUT

500mA

C1: LMK316BJ106ML-BR

L1: LQH43CN100K03

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