SC1628 HIGH-EFFICIENCY STEP-UP DC-DC CONVERTER

Semtech Corporation

Description

HIGH-EFFICIENCY STEP-UP DC-DC CONVERTER January 30, 1998 SC1628 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com .
The SC1628 is a high performance step-up DC-DC converter, designed to drive an external power switch to generate programmable positive voltages.

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Datasheet Specifications

Part number: SC1628
Manufacturer: Semtech Corporation
File Size: 121.24 KB
Datasheet: SC1628_SemtechCorporation.pdf
Description: HIGH-EFFICIENCY STEP-UP DC-DC CONVERTER

Features

* 4V to 24V input voltage operation
* Adjustable output voltage
* Low quiescent current at 100µA
* Pulse-skipping and pulse-frequency modulation
* maintain high efficiency (max. 95%) 90kHz to 250kHz oscillator frequency Power-saving shutdow

Applications

* typical full load efficiencies are 85% to 95%. The 4V to 24V input operation range allows the SC1628 to be powered directly by the battery pack in most batterypowered applications for greater efficiency. The output voltage can be scaled to 40V or greater by two external resistors. A pulse-frequency

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SC1628 HIGH-EFFICIENCY STEP-UP DC-DC CONVERTER Semtech Corporation

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