SC1578 Datasheet - Semtech Corporation

SC1578, HIGH-EFFICIENCY STEP-DOWN DC-DC CONVERTER

HIGH-EFFICIENCY STEP-DOWN DC-DC CONVERTER January 29, 1998 SC1578 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com .
The SC1578 is a high performance step-down DC-DC converter, designed to drive an external P-channel MOSFET to generate programmable output voltages.

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Datasheet Details

Part number:

SC1578

Manufacturer:

Semtech Corporation

File Size:

130.52 KB

Description:

HIGH-EFFICIENCY STEP-DOWN DC-DC CONVERTER

Features

* 4V to 24V input voltage operation.
* High efficiency (up to 95%).
* Low quiescent current at 90µA.
* Pulse-skipping and pulse-frequency modulation.
* Inputs-uncommitted current sense comparator.
* Duty cycle adjustable
* 90kHz to 280kHz oscil

Applications

* Notebook 5V/3.3V main power
* Step-down DC-DC converter module.
* Constant current source for battery chargers. BLOCK DIAGRAM ORDERING INFORMATION DEVICE (1) PACKAGE SO-8 SC1578CS Note: (1) Add suffix ‘TR’ for tape and reel. PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS

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SC1578 HIGH-EFFICIENCY STEP-DOWN DC-DC CONVERTER Semtech Corporation

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