EUP3454

EUP3454 2A,16V,380KHz Step-Down Converter DESCRIPTION The EUP3454 are current mode, step-down switching regulator capable of driving 2A continuous load with excellent line and load regulation. The EUP3454 can operate with an input voltage range from 4.5V to 16V and the output can be externally set from 1.2V to 12V with a resistor divider. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 25µA of supply current. The EUP3454 require a minimum number of external components. FEATURES 30V Input Surge Protection Up to 2A Output Current 0.17Ω Internal DMOS Output Switch 4.5V to 16V Input Operating Range Output Adjustable from 1.2V to 12V Up to 95% Efficiency 25µA Shutdown Current Fixed 380KHz Frequency Thermal Shutdown and Overcurrent Protection Input Supply Overvoltage and Undervoltage Lockout Soft Start Available in SOP-8 Package RoHS Compliant and 100% Lead(Pb)-Free APPLICATIONS PC Monitors Distributed Power Systems Networking Systems Portable Electronics Typical Application Circuit Figure 1. Typical Application Circuit with Ceramic Capacitors DS3454 Ver1.0 July 2009 1