RT8453 Datasheet (Richtek) - High Voltage Buck LED Driver

RT8453, High Voltage Buck LED Driver

The RT8453 is a Buck current mode PWM regulator for LED driving applications.

It has a 1.5A switch on board and can be operated with wide input range from 4.5V to 40V.

With a 800kHz operating frequency, the external PWMinductor and input/output capacitors can all be small.

High efficiency is achieve

RT8453 Features

* z High Voltage : VIN up to 40V z 1.5A Switch Current z Current Mode PWM with 800kHz Switching z Frequency z Easy Dimming : Analog or Digital method z Programmable Soft Start to Avoid Inrush Current z VIN Under Voltage Lockout and Thermal Shutdown z RoHS Compliant and Halogen Free Ordering Informati