The SC1409 is a versatile, voltage-mode switching regulator designed for use in battery operated power supply applications.
A simple, fixed-voltage buck regulator can be implemented using the SC1409 with a minimum of external components.
Key Features
include a temperature compensated voltage reference, triangle wave oscillator, hiccup mode current limit, an internally compensated error amplifier, overcurrent temperature protection, soft start, and under voltage lock out. The SC1409 operates at a selectable, fixed frequency of 300kHz or 500kHz, or can be synchronized to an external clock within this range, providing an optimum compromise between efficiency, external component size, and cost.
Full PDF Text Transcription for SC1409 (Reference)
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SC1409. For precise diagrams, and layout, please refer to the original PDF.
1 A Synchronous Switching Regulator June 28, 2000 SC1409 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC1409 is a versatile, voltage-mode ...
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//www.semtech.com DESCRIPTION The SC1409 is a versatile, voltage-mode switching regulator designed for use in battery operated power supply applications. A simple, fixed-voltage buck regulator can be implemented using the SC1409 with a minimum of external components. Internal MOSFETs and control circuitry minimize board space and design time. The small device footprint allows for compact circuit design. SC1409 features include a temperature compensated voltage reference, triangle wave oscillator, hiccup mode current limit, an internally compensated error amplifier, overcurrent temperature protection, soft start, and under
SC1409 Datasheet
