G5121 Overview
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.
G5121 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