PMP23333
Synchronous inverting buck-boost converter reference design for communications equipment
PMP23333
概述
This reference design uses the LM61495 synchronous buck regulator, with internal top and bottom field effect transistors (FETs), which is configured as a synchronous inverting buck-boost converter. It generates an output of -8 V capable of delivering 2.7-A continuous (4-A peak) of current to the load, from a +12-V +/-10% input. The design is built on the PMP23241 printed circuit board, which is a four-layer board with one ounce copper for each of the four layers. The board is 76.2 mm x 68.6 mm. The solution size is approximately 17.0 mm x 30.5 mm, excluding the input bulk capacitor C1. See LM61495 functional safety failure in time rate, failure mode distribution, and pin failure mode analysis for any safety concerns.
特性
- Very small solution size
- Regulator includes integrated FETs
- High efficiency
- Regulator features spread-spectrum switching (dithering) for improved electromagnetic interference performance
- Converter generates a negative output voltage from a positive input voltage
| 输出电压选项 | PMP23333.1 |
|---|---|
| Vin (Min) (V) | 10.8 |
| Vin (Max) (V) | 13.2 |
| Vout (Nom) (V) | -8 |
| Iout (Max) (A) | -4 |
| Output Power (W) | 32 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck Boost- Inverting |
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技术文档
| 类型 | 标题 | 下载最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 测试报告 | Synchronous Inverting Buck-Boost Converter Ref.Des. for Communications Equipment | PDF | HTML | 2023年 2月 14日 |