LM2771 Low-Ripple 250mA Switched Capacitor Step-Down DC/DC Converter

National Semiconductor

Description

www.DataSheet4U.com LM2771 Low-Ripple 250mA Switched Capacitor Step-Down DC/DC Converter March 2006 LM2771 Low-Ripple 250mA Switched Capacitor Step.
The LM2771 is a switched capacitor step-down regulator that produces a 1.

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Datasheet Specifications

Part number: LM2771
Manufacturer: National Semiconductor
File Size: 914.61 KB
Datasheet: LM2771_NationalSemiconductor.pdf
Description: Low-Ripple 250mA Switched Capacitor Step-Down DC/DC Converter

Features

* n n n n n n n n n n n n Low-Noise Fixed Frequency Operation 1.5V Output Voltage Li-Ion (3.6V) to 1.5V with 81% Efficiency 1.7% Output Voltage Accuracy Very Low Output Ripple: 8mV @ 250mA Output Currents up to 250mA 2.7V to 5.5V Input Range Shutdown Disconnects Load from VIN 1.1MHz Switching Frequenc

Applications

* n DSP, Memory, and Microprocessor Power Supplies n Mobile Phones and Pagers n Portable Electronic Devices Typical Application Circuit LM2771 Efficiency vs. Low-Dropout Linear Regulator (LDO) Efficiency 20183801 20183813 © 2006 National Semiconductor Corporation DS201838 www. national. com LM27

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LM2771 Low-Ripple 250mA Switched Capacitor Step-Down Converter National Semiconductor

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