EUP3484A

EUP3484A 3A, 30V, 340KHz Synchronous Step-Down Converter DESCRIPTION The EUP3484A is a synchronous current mode buck regulator capable of driving 3A continuous load current with excellent line and load regulation. The EUP3484A can operate with an input range 4.5V to 30V and the output can be externally set from 0.925V to 20V with a resistor divider. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 1µA of supply current. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup. Automatic pulse skipping mode operation increase efficiency at light loads. The EUP3484A require a minimum number of external components. Typical Application Circuit FEATURES 3A Output Current Automatic Pulse Skipping Mode at Light Load 35V Input Surge Protection Integrated 160mΩ/110mΩ DMOS Switches 4.5V to 30V Input Operating Range Output Adjustable from 0.925V to 20V Up to 95% Effi...