XL2005 Datasheet | XLSEMI

Features n n n n n n n n n n n n n n n n Wide 8V to 32V Input Voltage Range Output Adjustable from 0.8V to 26V Minimum Drop Out 0.3V Fixed 160KHz Switching Frequency Maximum 2A Output Current Capability Internal Optimize Power MOSFET Excellent line and load regulation High efficiency up to 92% TTL shutdown capability EN pin with hysteresis function With output constant current loop Built in Constant Voltage (CV) Loop Built in Constant Current (CC) Loop Built in thermal shutdown function Built in output short protection SOP8 package General Description The XL2005 is a 160 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external ponents, the regulator is simple to use and include internal frequency pensation 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 pensation block is built in to minimize external ponent count. Applications n n Car Charger Battery Charger Figure1. Package Type of XL2005 http://.junyi-ic. TEL:0755-29955070 FAX:0755-27858707 Free Datasheet http://.. Datasheet 2A 160KHz 32V Buck DC/DC Converter With CV/CC Loop Pin Configurations XL2005 Figure2. Pin Configuration of XL2005 (Top View) Table 1 Pin Description Pin Number 1 2 3 4 5,6 7,8 Pin Name FB EN OCSET VIN SW GND Description Feedback Pin (FB). Through an external resistor divider network, Feedback senses the output voltage and regulates it. The feedback threshold voltage is 0.8V. Enable Pin. Drive EN pin low to turn off the device, drive it high to turn it on. Output Constant Current Set Pin. Supply Voltage Input Pin. XL2005 operates from a 8V to 32V DC voltage. Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input. Power Switch Output Pin (SW). Output is the...