TX5121 - Fixed Frequency WhiteLED Step-Up Converter

ChipSourceTek

TX5121 Datasheet Preview — Preview of TX5121 PDF

Datasheet Details

Part number	TX5121
Manufacturer	ChipSourceTek
File Size	517.82 KB
Description	Fixed Frequency WhiteLED Step-Up Converter
Datasheet	TX5121-ChipSourceTek.pdf

TX5121 Product details

Description

The TX5121 is a step-up DC/DC converter e specifically designed to drive up to 5 series white LEDs with constant current.Series connection of T the LEDs provides identical LED currents resulting in uniform brightness and eliminates the e need for ballast resistors.The TX5121 switches at 1.4MHz, allowing the use of tiny external components.A low 0.25V feedback voltage minimizes power loss in the current setting resistor for high efficiency.The OVP pin monitors the output voltage and turns

Features

l Inherently Matched LED Current l High Efficiency:82% l Drives Up to Five LEDs from 2.2V Supply l 17V Over Voltage Protection l Fast 1.4MHz Switching Frequency l Requires Only 1μF Output Capacitors l SOT-23-6 Package.

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Published: Apr 17, 2025 |