EUP3423 EUTECH | Alldatasheet
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Technical content
DS3423 Ver1.0 Jun. 2011 3.2A, Synchronous Step-Down Converter
DESCRIPTION
The EUP3423 is a 1 MHz fixed frequency synchronous, current-mode, step-down dc-dc converter capable of providing up to 3.2A output current. The EUP3423 operates from an input range of 2.7V to 5.5V and provides a regulated output voltage from 0.8V to 5V. The internal synchronous power switch improves efficiency and eliminates the need for an external Schottky diode. Forced PWM operation provides very low output ripple voltage for noise sensitive applications. The EUP3423 features short circuit and thermal protection circuits to improve system reliability. Externally adjustable soft-start avoids input inrush current during startup. The EUP3423 is available in SOP-8 (EP) package. Typical Application Circuit
FEATURES
/circle6 2.7V to 5.5V Input V oltage Range /circle6 High Efficiency up to 96% /circle6 3.2A Available Load Current /circle6 100/60mΩ Integrated PFET/NFET Switches /circle6 1MHz Switching Frequency /circle6 100% Duty Cycle Low Dropout Operation /circle6 Short Circuit and Thermal Protection /circle6 Integrated UVLO /circle6 Excellent Line and Load Transient Response /circle6 Available in SOP-8(EP) Package /circle6 RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free
APPLICATIONS
/circle6 High Performance DSPs, FPGAs, ASICs and Microprocessors /circle6 Base Station, Telecom, and Networking Equipment Power Supplies /circle6 ePC and NetPCs Figure1. Typical Application Circuit