SC1633-5CS datasheet(1/7 Pages) SEMTECH

No de pièce	SC1633-5CS

Description	LOW VOLTAGE STEP-UP DC-DC CONVERTER

PDF	7 Pages

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Fabricant	SEMTECH [Semtech Corporation]

Site Internet	http://www.semtech.com

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652 MITCHELL ROAD NEWBURY PARK CA 91320

LOW VOLTAGE STEP-UP

DC-DC CONVERTER

SC1633

January 29, 1998

Note:

(1) Add suffix ‘TR’ for tape and reel.

FEATURES

• High efficiency 87%

• Power-saving shutdown mode (7µA typical)

• Internal 0.8A switch

• 120kHz switching rate

• Adjustable switch current limit

• On-chip low battery detector

DESCRIPTION

The SC1633 is a high efficiency step up DC-DC

converter. Only four external components are required

to deliver a fixed voltage of 3V, 3.3V, or 5V. Efficiency

beyond 83% can be easily achieved at 70mA load with

2.2V to 3V input voltages.

A logic-controlled shutdown mode is provided for

power saving. Switch current limit can be programmed

with a resistor. The low battery detector can be

configured as a linear regulator or a burst mode

controller providing extremely low supply current

operation.

A switching rate of 120kHz reduces the inductor size -

inductors of 47µH to 150µH inductance are

recommended for most applications.

TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com

BLOCK DIAGRAM

APPLICATIONS

• Pocket organizers

• Electronic dictionaries

• Cameras

• Pagers

• Bar code scanners

• LCD displays

• Battery backup supplies

• Portable instruments

ORDERING INFORMATION

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Maximum

Units

Supply Voltage

V

IN

7.0

V

Operating

Temperature Range

T

A

0 to 70

°C

Storage

Temperature Range

T

STG

-65 to 125

°C

PIN CONFIGURATION

TYPICAL APPLICATION CIRCUIT

DEVICE

(1)

VOLTAGE

PACKAGE

SC1633CS

SC1633-3CS

SC1633-5CS

3.3V

3.0V

5.0V

SO-8

Numéro de pièce similaire - SC1633-5CS

Fabricant	No de pièce	Fiches technique	Description
Semtech Corporation	SC1630	231Kb / 8P	LOW VOLTAGE MULTI-MODE DC-DC CONVERTER
	SC1630CS	231Kb / 8P	LOW VOLTAGE MULTI-MODE DC-DC CONVERTER
	SC1631	168Kb / 7P	LOW VOLTAGE STEP-UP DC-DC CONVERTER
	SC1631-3CS	168Kb / 7P	LOW VOLTAGE STEP-UP DC-DC CONVERTER
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SC1633-5CS Fiches technique(PDF) 1 Page - Semtech Corporation

SC1633-5CS Fiches technique(HTML) 1 Page - Semtech Corporation

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