LM2621 Low Input Voltage/ Step-Up DC-DC Converter

National Semiconductor

Description

LM2621 Low Input Voltage, Step-Up DC-DC Converter February 2000 LM2621 Low Input Voltage, Step-Up DC-DC Converter General .
The LM2621 is a high efficiency, step-up DC-DC switching regulator for battery-powered and low input voltage systems.

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Datasheet Specifications

Part number: LM2621
Manufacturer: National Semiconductor
File Size: 254.88 KB
Datasheet: LM2621_NationalSemiconductor.pdf
Description: Low Input Voltage/ Step-Up DC-DC Converter

Features

* n Small Mini-SO8 Package (Half the Footprint of Standard 8-Pin SO Package) n 1.09 mm Package Height n Up to 2 MHz Switching Frequency n 1.2V to 14V Input Voltage n 1.24V - 14V Adjustable Output Voltage n Up to 1A Load Current n 0.17 Ω Internal MOSFET n Up to 90% Regulator Efficiency n 80 µA Typical

Applications

* n n n n n n n n n n PDAs, Cellular Phones 2-Cell and 3-Cell Battery-Operated Equipment PCMCIA Cards, Memory Cards Flash Memory Programming TFT/LCD Applications 3.3V to 5.0V Conversion GPS Devices Two-Way Pagers Palmtop Computers Hand-Held Instruments Typical Application Circuit DS100934-12 © 2000

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LM2621 Low Input Voltage Step-Up DC-DC Converter National Semiconductor

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