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LTC3252

3252f

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

©LINEAR TECHNOLOGY CORPORATION 2003

LT/TP 0503 1K • PRINTED IN USA

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LTC1514

50mA, 650kHz, Step-Up/Down Charge Pump

VIN = 2.7V to 10V, VOUT = 3V or 5V, Regulated Output, IQ = 60µA,

with Low Battery Comparator

ISHDN = 10µA, S8

LTC1515

50mA, 650kHz, Step-Up/Down Charge Pump

VIN = 2.7V to 10V, VOUT = 3.3V or 5V, Regulated Output, IQ = 60µA,

with Power-On Reset

ISHDN = <1µA, S8

LT1776

500mA (IOUT), 200kHz, High Efficiency

90% Efficiency, VIN = 7.4V to 40V, VOUT Min = 1.24V,

Step-Down DC/DC Converter

IQ = 3.2mA, ISHDN = 30µA, N8, S8

LTC1911-1.5

250mA, 1.5MHz, High Efficiency

75% Efficiency, VIN = 2.7V to 5.5V, VOUT = 1.5V, Regulated Output,

Step-Down Charge Pump

IQ = 180µA, ISHDN = 10µA, MS8

LTC1911-1.8

250mA, 1.5MHz, High Efficiency

75% Efficiency, VIN = 2.7V to 5.5V, VOUT = 1.8V, Regulated Output,

Step-Down Charge Pump

IQ = 180µA, ISHDN = 10µA, MS8

LTC3250-1.5

250mA, 1.5MHz, High Efficiency

85% Efficiency, VIN = 3.1V to 5.5V, VOUT = 1.5V, Regulated Output,

Step-Down Charge Pump

IQ = 35µA, ISHDN = <1µA, ThinSOT

LTC3251

500mA, Spread Spectrum, High Efficiency

Up to 85% Efficiency, VIN = 2.7V to 5.5V, VOUT = 0.9V to 1.6V,

Step-Down Charge Pump

IQ = 8µA, ISHDN = <1µA, MS10

LTC3404

600mA (IOUT), 1.4MHz, Synchronous

95% Efficiency, VIN = 2.7V to 6V, VOUT Min = 0.8V,

Step-Down DC/DC Converter

IQ = 10µA, ISHDN = <1µA, MS8

LTC3405/LTC3405A 300mA (IOUT), 1.5MHz, Synchronous

95% Efficiency, VIN = 2.7V to 6V, VOUT Min = 0.8V,

Step-Down DC/DC Converter

IQ = 20µA, ISHDN = <1µA, ThinSOT

LTC3406/LTC3406B 600mA (IOUT), 1.5MHz, Synchronous

95% Efficiency, VIN = 2.5V to 5.5V, VOUT Min = 0.6V,

Step-Down DC/DC Converter

IQ = 20µA, ISHDN = <1µA, ThinSOT

LTC3411

1.25A (IOUT), 4MHz, Synchronous Step-Down

95% Efficiency, VIN = 2.5V to 5.5V, VOUT Min = 0.8V,

DC/DC Converter

IQ = 60µA, ISHDN = <1µA, MS10

LTC3412

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

95% Efficiency, VIN = 2.5V to 5.5V, VOUT Min = 0.8V,

DC/DC Converter

IQ = 60µA, ISHDN = <1µA, TSSOP-16E

LTC3440

600mA (IOUT), 2MHz, Synchronous

95% Efficiency, VIN = 2.5V to 5.5V, VOUT Min = 2.5V,

Buck-Boost DC/DC Converter

IQ = <25µA, ISHDN = 1µA, MS10

LTC3252

IOUT

250mA

3-CELL

NiMH

3252 TA04

4.7

µF

4.7

µF

VIN

OUT1

FB1

µF

C1+

C1–

EN1

EN2

C2+

GND

C2–

FB2

OUT2

µF

261k

412k

100k

EN1

EN2

OUT

OFF

1.2V

OFF

1.5V

3-Cell NiMH with Digitally Selectable 1.2V/1.5V Output

LTC3252

OUT

1.5V

300mA

3.3V

3252 TA03

4.7

µF

VIN

OUT1

FB1

µF

C1+

C1–

EN1

EN2

C2+

GND

C2–

FB2

OUT2

OFF ON

µF

470k

510k

Fixed 3.3VIN to 1.5VOUT at 300mA

TYPICAL APPLICATIO S

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