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发布者:来自网络 发布时间:2014/7/23 阅读:2712次    关键字: DC-DC
EUP3427-4A,Synchronous Step-Down Converter


EUP3427-4A,Synchronous Step-Down Converter DataSheet 

DESCRIPTION

The EUP3427 is a 1 MHz fixed frequency synchronous, current-mode, step-down dc-dc converter capable of providing up to 4A output current. The EUP3427 operates from an input range of 2.7V to 5.5V and provides a regulated output voltage from 0.6V to 5V.
The internal synchronous power switch improves efficiency and eliminates the need for an external Schottky diode. The EUP3427 can be externally set for either forced PWM continuous mode or pulse skipping mode. Forced PWM operation provides very low output ripple voltage for noise sensitive applications while pulse skipping operation improves light load efficiency by reducing switching loss.
The EUP3427 features short circuit and thermal protection circuits to improve system reliability.
Internally soft-start avoids input inrush current during startup. The EUP3427 is available in SOP-8 package with the exposed pad and TDFN-10 package.

FEATURES

•  2.7V to 5.5V Input Voltage Range
•  High Efficiency up to 96%
•  4A Available Load Current
•  57/35m_ Integrated PFET/NFET Switches
•  1MHz Switching Frequency
•  100% Duty Cycle Low Dropout Operation
•  Short Circuit and Thermal Protection
•  Integrated UVLO and Power Good
•  Excellent Line and Load Transient Response
•  Available in SOP-8 (EP) and TDFN-10 Packages
•  RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free

APPLICATIONS

•  High Performance DSPs, FPGAs, ASICs and Microprocessors
•  Base Station, Telecom, and Networking Equipment Power Supplies
•  ePC and NetPCs

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