概览
描述
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.
特性
- 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)
应用
文档
相关文档
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| 类型 | 文档标题 | 日期 |
| 其他 | PDF 477 KB | |
| 数据手册 | PDF 766 KB English | |
| 其他 | PDF 315 KB | |
| 应用说明 | PDF 453 KB | |
| 应用说明 | PDF 817 KB | |
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