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EUP3426

3A, Synchronous Step-Down Converter

Description

The EUP3426 is a 1 MHz fixed frequency synchronous,current-mode, step-down dc-dc converter capable of providing up to 3A output current.The EUP3426 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 EUP3426 can automatically operate in different modes as the load changes. At heavy load, the EUP3426 operates at a fixed frequency Pulse-Width Modulation mode for excellent tability and transient response. At light load, the EUP3426 will operates at a Pulse-Skipping mode to save power.

The EUP3426 features short circuit and thermal protection circuits to improve system reliability. Internally soft-start avoids input inrush current during startup. The EUP3426 is available in TDFN 3mm×3mm 10-pin package with the exposed pad.

Feature

  • • 2.7V to 5.5V Input Voltage Range
  • • High Efficiency up to 96%
  • • 3A Available Load Current
  • • 69/45mΩ 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 10-Pin 3mm×3mm TDFN Package
  • • RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free

Application

  • • Distributed 3.3V and 5V Power Supplies
  • • High Performance DSPs, FPGAs, ASICs and Microprocessors
  • • Base Station, Telecom, and Networking Equipment Power Supplies
  • • ePC and NetPCs
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