LM2773 Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator

National Semiconductor

Description

LM2773 Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator January 22, 2008 LM2773 Low-Ripple 1.8V/1.6V Spread-Spectrum Swit.
The LM2773 is a switched capacitor step-down regulator that produces a selectable 1.

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Datasheet Specifications

Part number: LM2773
Manufacturer: National Semiconductor
File Size: 348.58 KB
Datasheet: LM2773_NationalSemiconductor.pdf
Description: Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator

Features

* Low-Noise Spread Spectrum Operation 1.8V/1.6V Selectable Output Voltage 2% Output Voltage Regulation > 75% Efficiency in 1.8V Mode Very Low Output Ripple: 10mV @ 300mA Output Currents up to 300mA 2.5V to 5.5V Input Voltage Range

Applications

* Power Supply for DSP's, Memory, and Microprocessors
* Mobile Phones and Pagers
* Digital Cameras, Portable Music Players, and Other Portable Electronic Devices Typical Application Circuit LM2773 Efficiency vs. Low-Dropout Linear Regulator (LDO) Efficiency 30047401 30047410 © 2008

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LM2773 Low-Ripple 1.8V 1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator National Semiconductor

National Semiconductor LM2773-like datasheet