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RC4391

Fairchild Semiconductor
Part Number RC4391
Manufacturer Fairchild Semiconductor
Description Inverting And Step-down Switching Regulator
Published Oct 1, 2005
Detailed Description www.fairchildsemi.com RC4391 Inverting and Step-Down Switching Regulator Features • Versatile — Inverting function (+ ...
Datasheet PDF File RC4391 PDF File

RC4391
RC4391

Overview
www.
fairchildsemi.
com RC4391 Inverting and Step-Down Switching Regulator Features • Versatile — Inverting function (+ to -) Step-down function Adjustable output voltage Regulates supply changes • Micropower — Low quiescent current — 170 mA Wide supply range — 4V to 30V • High performance — High switch current — 375 mA High efficiency — 70% typically • Low battery detection capability • 8-lead mini-DIP or S.
O.
package Description Fairchild Semiconductor’s RC4391 is a monolithic switch mode power supply controller for micropower circuits.
The RC4391 integrates all the active functions needed for low power switching supplies, including oscillator, switch, reference and logic, into a small pac...


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