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G5121 Datasheet Fixed Frequency White Led Step-up Converter

Manufacturer: Global Mixed-mode Technology

Overview: Global Mixed-mode Technology Inc. G5121 Fixed Frequency White LED Step-Up.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The G5121 is a step-up DC/DC converter specifically designed to drive up to 5 series white LEDs with constant current.

Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminates the need for ballast resistors.

The G5121 switches at 1MHz, allowing the use of tiny external ponents.

Key Features

  • Inherently Matched LED Current.
  • High Efficiency: 87%.
  • Drives Up to Five LEDs from 2.5V Supply.
  • 24V Internal Power Switch.
  • Fast 1MHz Switching Frequency.
  • Uses Tiny 1mm Tall Inductors.
  • Requires Only 1µF Output Capacitors.
  • 19.5V Over Voltage Protection.
  • SOT-23-6 Package.

G5121 Distributor