Overview
Description
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
Applications
- Point of regulation power supplies
- FPGA core and I/O supplies
- DSP, CPU core and I/O supplies
- Logic/Bus supplies
- Portable equipment
Documentation
= Featured Documentation
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| Type | Title | Date |
| Other | PDF 477 KB | |
| Other | PDF 315 KB | |
| Application Note | PDF 453 KB | |
| Application Note | PDF 817 KB | |
| Datasheet | PDF 823 KB 简体中文 | |
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Design & Development
Processing table
EL7554IRE-EVAL Obsolete |
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