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LM2788 - 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter

Description

The LM2788 switched capacitor step-down DC/DC converter efficiently produces a 120mA regulated low-voltage rail from a 2.6V to 5.5V input.

Fixed output voltage options of 1.5V, 1.8V, and 2.0V are available.

Features

  • noise-reducing soft-start circuitry, short-circuit protection and over-temperature protection. Features n Output voltage options: 2.0V ± 5%, 1.8V ± 5%, 1.5V ± 6% n 120mA output current capability n Multi-Gain and Gain Hopping for Highest Possible Efficiency - up to 90% Efficient n 2.6V to 5.5V input range n Low operating supply current: 32µA n Shutdown supply current: 0.1µA n Thermal and short circuit protection n Available in an 8-Pin MSOP Package.

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Datasheet preview – LM2788

Datasheet Details

Part number LM2788
Manufacturer National Semiconductor
File Size 398.22 KB
Description 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter
Datasheet download datasheet LM2788 Datasheet
Additional preview pages of the LM2788 datasheet.

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Full PDF Text Transcription

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October 2002 www.DataSheet4U.com LM2788 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter LM2788 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter General Description The LM2788 switched capacitor step-down DC/DC converter efficiently produces a 120mA regulated low-voltage rail from a 2.6V to 5.5V input. Fixed output voltage options of 1.5V, 1.8V, and 2.0V are available. The LM2788 uses multiple fractional gain configurations to maximize conversion efficiency over the entire input voltage and output current ranges. Also contributing to high overall efficiency is the extremely low supply current of the LM2788: 32µA operating unloaded and 0.1µA in shutdown.
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