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GM7620 - Fixed Frequency Step-up Dc-to-dc Converter

General Description

Switch Pin.

This is the collector of the internal NPN power switch.

Minimize the metal trace area connected to this pin to minimize EMI.

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Datasheet Details

Part number GM7620
Manufacturer Gamma Microelectronics
File Size 159.41 KB
Description Fixed Frequency Step-up Dc-to-dc Converter
Datasheet download datasheet GM7620 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PRELIMINARY GM7620 FIXED FREQUENCY STEP-UP DC/DC CONVERTER www.DataSheet4U.com 1.2MHz Fixed Frequency Switching Inherently Matched LED Current Adjustable Control of LED Current Drives Five White LEDs from 2V Drives Six White LEDs from 2.7V Drives Eight White LEDs from 3V Disconnects LEDs In Shutdown Uses Tiny Ceramic Capacitors Uses Tiny 1mm-Tall Inductors Regulates Current Even When VIN > VOUT Operates with VIN as Low as 1V Up to 80% Efficiency The GM7620 is a fixed frequency step-up DC/DC converter designed to operate as a constant-current source. Because it directly regulates output current, the GM7620 is ideal for driving light emitting diodes (LEDs) whose light intensity is proportional to the current passing through them, not the voltage across their terminals.