XL3002

Preliminary Datasheet 1.5A 260KHz 32V Buck LED Constant Current Driver Features n n n n n n n n n n n n n Wide 5V to 32V Input Voltage Range Output Current Sense Voltage is 0.24V Minimum Drop Out 0.3V Fixed 260KHz Switching Frequency 1.5A Constant Output Current Capability Internal Optimize Power MOSFET Excellent line and load regulation High efficiency up to 96% TTL shutdown capability EN pin with hysteresis function Built in thermal shutdown function Built in current limit function SOIC-8 package XL3002 General Description The XL3002 is a 260 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 1.5A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count. Applications n n MR16 LED Lamp LED Lighting Figure1. Package Type of XL3002 Rev 2.0 1 www.xlsemi.com Free Datasheet http://www.Datasheet4U.com Preliminary Datasheet 1.5A 260KHz 32V Buck LED Constant Current Driver Pin Configurations XL3002 Figure2. Pin Configuration of XL3002 (Top View) Table 1 Pin Description Pin Number 1 2 3 4 5,6 7,8 Pin Name CS EN NC VIN SW GND Description Ou...