EL7554IRE-EVAL Evaluation Board

Monolithic 4A DC/DC Step-Down Regulator

The EL7554 is a high efficiency full-featured synchronous 4A step-down regulator. This document lists the completed schematic diagram and BOM, as well as the layout. With components on one side of the PCB, the complete converter occupies less than 0.58in2 of space. Please refer to the datasheet for the application of features. This demo board is preset to 1.8V for VO and operates at 600kHz switching frequency. The measured crossover frequencies are around 50kHz with the compensation values.

Features

  • Integrated MOSFETs
  • 4A continuous output current
  • Up to 96% efficiency
  • All ceramic capacitors
  • Multiple supply start-up tracking
  • Built-in ±5% voltage margining
  • 3V to 6V input voltage
  • Adjustable switching frequency to 1MHz
  • Oscillator synchronization possible
  • 100% duty ratio
  • Junction temperature indicator
  • Over temperature protection
  • Internal soft-start
  • Variable output voltage down to 0.8V
  • Power-good indicator
  • Pb-free available (RoHS compliant)

Applications

  • Point of regulation power supplies
  • FPGA core and I/O supplies
  • DSP, CPU core, and I/O supplies
  • Logic/Bus supplies
  • Portable equipment

EL7554IRE-EVAL Evaluation Board

Related Product

EL7554

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