LT1300CS8PBF Linear Technology Corporation, LT1300CS8PBF Datasheet

LT1300CS8PBF

Manufacturer Part Number

LT1300CS8PBF

Description

SOP8

Manufacturer

Linear Technology Corporation

Datasheets

1.LT1300CS8PBF.pdf (8 pages)

2.LT1300CS8PBF.pdf (8 pages)

Specifications of LT1300CS8PBF

Date_code

08+

Current page: 1 of 8
Download datasheet (225Kb)

FEATURES

APPLICATIONS

TYPICAL APPLICATIONS

L1 = COILCRAFT DO1608-103

C1 = AVX TPSD107M010R0100

D1 = MBRS130LT3

Up to 220mA Output Current at 5V from 2V Supply

Supply Voltage as Low as 1.8V

Up to 88% Efficiency

Small Inductor –10 H

120 A Quiescent Current

Shutdown to 10 A

Programmable 3.3V or 5V Output

Low V

Uses Inexpensive Surface Mount Inductors

8-Lead DIP or SOIC Package

Palmtop Computers

Portable Instruments

Bar-Code Scanners

DC/DC Converter Module Replacements

Battery Backup Supplies

Personal Digital Assistants

PCMCIA Cards

LIM

CELL

OR SUMIDA CD54-100

OR SANYO OS-CON 16SA100M

OR 1N5817

Pin Programs Peak Switch Current

CESAT

SHUTDOWN

Two-Cell to 3.3V/5V Step-Up Converter

100µF

5V/3.3V

SELECT

Switch: 170mV at 1A Typical

SELECT

SHDN

PGND

LT1300

10µH

SENSE

GND

LIM

N/C

3.3/5V Step-Up DC/DC Converter

100µF

5V/3.3V

OUTPUT

LT1300 TA1

Micropower High Efficiency

DESCRIPTION

The LT1300 is a micropower step-up DC/DC converter that

utilizes Burst Mode™ operation. The device can deliver 5V

or 3.3V from a two-cell battery input. It features program-

mable 5V or 3.3V output via a logic-controlled input, no-

load quiescent current of 120 A and a shutdown pin which

reduces supply current to 10 A. The on-chip power switch

has a low 170mV saturation voltage at a switch current of

1A, a four-fold reduction over prior designs. A 155kHz

internal oscillator allows the use of extremely small sur-

face mount inductors and capacitors. Operation is guaran-

teed at 1.8V input. This allows more energy to be extracted

from the battery increasing operating life. The I

be used to program peak switch current with a single

resistor allowing the use of less expensive and smaller

inductors and capacitors in lighter load applications. The

LT1300 is available in an 8-lead SOIC package, minimizing

board space requirements. For a 5V/12V Selectable Out-

put Converter see the LT1301. For increased output cur-

rent see the LT1302.

Burst Mode is a trademark of Linear Technology Corporation.

5V Output Efficiency

LOAD CURRENT (mA)

100

LT1300 TA2

= 4.0V

= 3.0V

= 2.5V

= 2.0V

500

LT1300

LIM

pin can

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