AT2003 Datasheet

AT2003 Wide Input sensorless CC/CV 2A Buck Converter

AT2003 is a wide input voltage, high efficiency stepdown DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. AT2003 provides up to 3A output current at 120kHz switching frequency ,and the CC level can be adjusted by changing external sensin.

Features

 Wide Input Voltage with 9V ~ 40V Operation  Up to 3A Output Current  Fixed Frequency 120 kHz with Easy EMI Control  Constant voltage and constant voltage control  Precision Feedback Voltage 1.2V+-1%  Precision CC Limit with +-5% Accuracy  Integrated 140mohm High Side NMOS  Internal MOS 4.5A Current Peak Protected in Cycle by Cycle Current Limit  PSOP8-8 Package Applications   Car Charger/Adaptor General-Purposed DC/DC Converters with Ordering and Marking Information Constant Current Limit Order Number Package Top Marking  Rechargeable Portable Devices AT2003SSP8 PSOP-8L .