TIPA-020002
使用 LP8752-Q1 和 LP8756-Q1 的 Semidrive X9SP（兼容 X9HP）电源设计
TIPA-020002
概述
This power design is for the Semidrive X9SP automotive system-on-chip (SoC) power rails using the LP87521-Q1, LP87562-Q1, and LP87563-Q1 power management ICs (PMICs). Additional bucks TPS62811-Q1 and TPS628501-Q1 as well as LDOs TPS74501-Q1 and TLV76733-Q1 are used to power other discrete rails not covered by PMICs. This power design assumes an input voltage of 5V (±5%). If the system input voltage is higher, for example a car battery, a buck converter as a pre-regulator needs to be used to generate a supply voltage of 5V. LM25149-Q1 can be used as a pre-regulator when powered directly from car battery. An additional smart diode controller such as LM74700-Q1 can be used to control external MOSFETS and provide power path ON or OFF control and overvoltage protection.
特性
- LP87562-Q1 has four buck converters configured to work as single 3-phase converter and a separate single phase converter.
- LP87563-Q1 has four buck converters configured to work as single 2-phase converter and two separate single phase converters.
- LP87563-Q1 has four buck converters configured to work as single 4-phase converter.
汽车
我们开发的全面组装电路板仅用于测试和性能验证，不可用于销售。
设计文件和产品
设计文件
下载现成的系统文件，加快您的设计过程。
技术文档
| 类型 | 标题 | 下载最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 设计指南 | 使用 LP8752-Q1 和 LP8756-Q1 的 Semidrive X9SP（兼容 X9HP）电源设计 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2025年 1月 2日 |