LTC3458LEDE datasheet(16/16 Pages) LINER

16 / 16 page

LTC3458L

3458lf

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

©LINEAR TECHNOLOGY CORPORATION 2005

RELATED PARTS

TYPICAL APPLICATIO

PART NUMBER

DESCRIPTION

COMMENTS

LT1310

1.5A ISW, 4.5MHz, High Efficiency Step-Up DC/DC Converter

VIN: 2.75V to 18V, VOUT(MAX) = 35V, IQ = 12mA, ISD < 1µA,

MS10E

LT1613

550mA ISW, 1.4MHz, High Efficiency Step-Up DC/DC Converter

VIN: 0.9V to 10V, VOUT(MAX) = 34V, IQ = 3mA, ISD < 1µA, ThinSOT

LT1615/

300mA/80mA ISW, Constant Off-Time, High Efficiency

VIN: 1.2V to 15V, VOUT(MAX) = 34V, IQ = 20µA, ISD < 1µA,

LT1615-1

Step-Up DC/DC Converter

ThinSOT

LT1618

1.5A ISW, 1.4MHz, High Efficiency Step-Up DC/DC Converter

VIN: 1.6V to 18V, VOUT(MAX) = 35V, IQ = 1.8mA, ISD < 1µA, MS10

LT1946/LT1946A 1.5A ISW, 1.2MHz/2.7MHz, High Efficiency Step-Up

VIN: 2.45V to 16V, VOUT(MAX) = 34V, IQ = 3.2mA, ISD < 1µA, MS8

DC/DC Converter

LT1961

1.5A ISW, 1.25MHz, High Efficiency Step-Up DC/DC Converter

VIN: 3V to 25V, VOUT(MAX) = 35V, IQ = 0.9mA, ISD < 6µA, MS8E

LTC3400/

600mA ISW, 1.2MHz, Synchronous Step-Up DC/DC Converter

VIN: 0.5V to 5V, VOUT(MAX) = 5V, IQ = 19µA/300µA ISD < 1µA,

LTC3400B

ThinSOT

LTC3401

1A ISW, 3MHz, Synchronous Step-Up DC/DC Converter

VIN: 0.5V to 5V, VOUT(MAX) = 6V, IQ = 38µA ISD < 1µA, MS10

LTC3402

2A ISW, 3MHz, Synchronous Step-Up DC/DC Converter

VIN: 0.5V to 5V, VOUT(MAX) = 6V, IQ = 38µA ISD < 1µA, MS10

LTC3421

3A ISW, 3MHz, Synchronous Step-Up DC/DC Converter

VIN: 0.5V to 4.5V, VOUT(MAX) = 2.4V to 5.25V

LTC3425

5A ISW, 8MHz, 4-Phase Synchronous Step-Up DC/DC Converter

VIN: 0.5V to 4.5V, VOUT(MAX) = 5.25V, IQ = 12µA, ISD < 1µA,

QFN32

LTC3429

600mA, 500kHz, Synchronous Step-Up DC/DC Converter

VIN: 0.5V to 5V, VOUT(MAX) = 5V, IQ = 20µA/300µA ISD < 1µA,

with Output Disconnect and Soft-Start

ThinSOT

LTC3458

1.4A ISW, 1.5MHz, High Efficiency Step-Up DC/DC Converter

VIN: 1.5V to 6V, VOUT(MAX) = Up to 7.5V

LTC3459

70mA ISW, 10V Micropower Synchronous Boost/Output Disconnect VIN: 1.5V to 5.5V, VOUT(MAX) = 10V, IQ = 10µA, ThinSOT

LT3460

320mA ISW, 1.3MHz, High Efficiency Step-Up DC/DC Converter

VIN: 2.5V to 16V, VOUT(MAX) = 36V, IQ = 2mA, ISD < 1µA, SC70,

ThinSOT

LT3464

85mA ISW, Constant Off-Time, High Efficiency Step-Up DC/DC

VIN: 2.3V to 10V, VOUT(MAX) = 34V, IQ = 25µA, ISD < 1µA,

Converter with Integrated Schottky/Output Disconnect

ThinSOT

High Current LED Driver with BURST Pin Current Regulation

Two Alkaline Cells Powering

a 1-Watt Lumiled

VIN

GND/PGND

SHDN

SYNC

ILIM

VOUT

COMP

BURST

LTC3458L

2 ALKALINE

1.8V TO 3.3V

CIN

2.2

µF

ON OFF

274k

84.5k

RBURST

33k

0.01

µF

0.01

µF

0.01

µF

COUT

2.2

µF

VOUT

3V TO 3.5V

3458L TA06a

CIN, COUT: TAIYO YUDEN JMK107BJ225MA

D1: LUXEON EMITTER LUMILED WHITE

LXHLMW1D

L1: Coilcraft 10

µH MSS7341

RBURST: 45.3k FOR 300mA,

82.5k FOR 150mA,

232k FOR 50mA

Z1: CENTRAL SEMI 6.8V ZENER DIODE SOT-23 CMPZ5235B

fOSC = 750kHz

–

INPUT VOLTAGE (V)

100

3458L TA06b

1.8

2.3

2.8

3.3

300mA, 3.5V

50mA, 3V

150mA, 3.2V

NOTE: LUMILED CURRENT REGULATION

~20% OVER VIN RANGE

LT/TP 0505 500 • PRINTED IN USA

LTC3458LEDE Arkusz danych(PDF) 16 Page - Linear Technology

LTC3458LEDE Arkusz danych(HTML) 16 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Arkusz danych Pobierz

Link URL