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

Product Overview

National Semiconductor

Part number	LM2771
Manufacturer	National Semiconductor
File Size	914.61 KB
Description	Low-Ripple 250mA Switched Capacitor Step-Down DC/DC Converter
Datasheet	LM2771 Datasheet
Additional preview pages of the LM2771 datasheet.

The LM2771 is a switched capacitor step-down regulator that produces a 1.5V output without the use of an inductor.

It is capable of supplying loads up to 250mA.

The LM2771 operates with an input voltage from 2.7V to 5.5V, and requires only 3 low-cost ceramic capacitors.

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 Frequency No Inductors…Small Solution Size Current Limit and Thermal Protection LLP-10 Package (3mm x 3mm x 0.8mm).

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Published: Jan 25, 2007 |