XL2001

Datasheet 5V/1.8A 150KHz 45V Buck DC to DC Converter For USB Interface Features n n n n n n n n n n n Wide 8V to 45V input voltage range. Fixed 5V output voltage. Maximum 1.8A output current. Fixed 150KHz switching frequency. Internal optimize power MOSFET. High efficiency up to 92%. Built in output short shutdown function. Excellent line and load regulation. Built in thermal shutdown function. Built in current limit function. Available in SOIC-8 package. XL2001 General Description The XL2001 is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 1.8A 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 XL2001 built in output short protection function. When short protection function happens, the chip will be shutdown. An internal compensation block is built in to minimize external component count. Applications n n n Car Charger. Battery Charger. USB Power Supply. Figure1. Package Type of XL2001 Rev 1.0 1 www.xlsemi.com Datasheet 5V/1.8A 150KHz 45V Buck DC to DC Converter For USB Interface Pin Configurations XL2001 Figure2. Pin Configuration of XL2001 (Top View) Table 1 Pin Description Pin Number 1 2 3 4 5,6 7,8 Pin Name FB NC VC VIN SW GND Description Feedback Pin (FB). The feedback threshold voltage is 5V. No Connected. Internal Voltage Regulator By...