LM2798 Datasheet 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter

Manufacturer: National Semiconductor (now Texas Instruments)

Download the LM2798 datasheet PDF. This datasheet also includes the LM2 variant, as both parts are published together in a single manufacturer document.

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LM2798 120ma high efficiency step-down switched capacitor voltage converter by National Semiconductor (now Texas Instruments) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (LM2-797.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	LM2798
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	388.09 KB
Description	120mA High Efficiency Step-Down Switched Capacitor Voltage Converter
Download	LM2798 Download (PDF)

General Description

The LM2797/98 switched capacitor step-down DC/DC converters efficiently produce 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 LM2797/98 uses multiple fractional gain configurations to maximize conversion efficiency over the entire input voltage and output current ranges.

Overview

LM2797/LM2798 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter with Voltage Monitoring April 2003 LM2797/LM2798 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter with Voltage.

Key Features

of the LM2797/98 include input voltage and output voltage monitoring. Pin BATOK provides battery monitoring by indicating when the input voltage is above 2.85V (typ. ). Pin POK verifies that the output voltage is not more than 5% (typ. ) below the nominal output voltage of the part. The optimal external component requirements of the LM2797/98 solution minimize size and cost, making the part ideal for Li-Ion and other battery powered designs. Two 1µF flying capacitors and two 10µF bypass capacitors.

📁 Similar Datasheet

Brand Logo	Part Number	Description	Manufacturer
	LM2798	Voltage Converter	Texas Instruments

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