EUP3271A Datasheet | Eutech Microelectronics

CC/CV Mode Synchronous Step-Down Converter DESCRIPTION The EUP3271A is a synchronous step-down converter capable of driving 5A continuous load with excellent line and load regulation. The EUP3271A operates in either CC (Constant Current) mode or CV (Constant Voltage) mode with an input voltage range from 4.5V to 36V. The EUP3271A provides programmable cable pensation by adjusting external resistor divider. External shutdown function can be controlled by pulling P pin to a level below 0.14V. Fault protection includes secondary cycle-by-cycle current limit, short circuit protection and thermal shutdown. Internal soft-start minimizes the inrush supply current and the output overshoot at initial startup. The EUP3271A is available in 5mm×5mm TQFN-20 package. Features - 4.5V to 36V Wide Input Operating Range - 80k Hz~400k Hz Switching Frequency Selection - CC/CV Mode Control - Up to 5A Output Current - +/- 1.5% Voltage Reference Accuracy - +/- 4% Constant Current Accuracy - Programmable Cable pensation - Internal Soft Start - Single Pin to External pensation and Shutdown Control - Hiccup Short Circuit Protection - Secondary Cycle-by-Cycle Current Limit - Thermal Shutdown - Available in 5mm×5mm TQFN-20 Package - Ro HS pliant and 100% Lead(Pb)-Free Halogen-Free APPLICATIONS - Car Charger - Portable charger applications - DC/DC converters with current limited Typical Application Circuit DS3271A Ver1.0 Jul. 2020 Figure 1. 150KHz Operating Frequency Application Circuit Typical Application Circuit...