LP87522-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Input Voltage: 2.8 V to 5.5 V
- Output Voltage: 0.6 V to 3.36 V
- Four High-Efficiency
Step-Down DC/DC Converter Cores:
- Maximum Output Current: 10 A
- Switching Frequency: 2 MHz
- Spread-Spectrum Mode and Phase Interleaving
- Configurable General Purpose I/O (GPIOs)
- I2C-Compatible Interface That Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
- Interrupt Function With Programmable Masking
- Programmable Power-Good Signal (PGOOD)
- Output Short-Circuit and Overload Protection
- Overtemperature Warning and Protection
- Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
The LP8752x-Q1 device is designed to meet the power-management requirements of the latest processors and platforms in various automotive power applications. The device contains four step-down DC/DC converter cores, which are configured as a 4-phase output, 3-phase and 1-phase outputs, 2-phase and 2-phase outputs, one 2-phase and two 1-phase outputs, or four 1-phase outputs. The device is controlled by an I2C-compatible serial interface and by enable signals.
The automatic pulse-width-modulation (PWM) to pulsed-frequency-modulation (PFM) operation (AUTO mode), together with the automatic phase adding and phase shedding, maximizes efficiency over a wide output-current range. The LP8752x-Q1 supports remote differential-voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) improving the accuracy of the output voltage. The switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.
The LP8752x-Q1 device supports load-current measurement without the addition of external current-sense resistors. The device also supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can include GPIO signals to control external regulators, load switches, and processor reset. During start-up and voltage change, the device controls the output slew rate to minimize output-voltage overshoot and in-rush current.
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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LP8752x-Q1 10-A Buck Converter With Integrated Switches 数据表 | PDF | HTML | 2018-3-15 | ||
| * | 用户指南 | LP87522E-Q1 Technical Reference Manual | PDF | HTML | 2021-2-16 | ||
| 用户指南 | LP8752x-Q1 配置指南 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2025-10-15 | |
| 应用简报 | FlexPower PMIC 设备的优势 (Rev. B) | 英语版 (Rev.B) | PDF | HTML | 2021-5-19 | ||
| 应用手册 | 使用 LP87522E-Q1 和 LP873244-Q1 的 AC8015 电源设计 | PDF | HTML | 英语版 | PDF | HTML | 2020-10-30 | |
| 应用手册 | How to Design Flexible Processor Power Systems Using PMICs (Rev. B) | 2020-1-27 | ||||
| 用户指南 | LP87522B-Q1 Technical Reference Manual | PDF | HTML | 2019-10-1 | |||
| 应用手册 | Stability Considerations for LP8756x-Q1 and LP8752x-Q1 | PDF | HTML | 2019-6-4 |
设计与开发
电源解决方案
了解包含 LP87522-Q1 的解决方案。TI 提供适用于 TI 和非 TI 片上系统 (SoC)、处理器、微控制器、传感器和现场可编程门阵列 (FPGA) 的电源解决方案。
LP87562Q1EVM — 具有集成开关的双路输出 12A + 4A 降压转换器评估模块
LP87562Q1EVM 展示了德州仪器 (TI) 的集成电路 LP87562-Q1。
LP87562-Q1 是一款高性能多相位降压转换器，专为满足汽车应用中最新应用处理器的电源管理要求而设计。该器件包含 4 个降压直流/直流转换器内核，这些内核配置为一个三相降压转换器和单相降压转换器。LP87562-Q1 可以驱动高达 12A+4A 的负载电流，并且集出色的解决方案尺寸和效率于一体。该器件可经由 PC 和提供的 GUI 进行控制。
可以对此 EVM 进行编程，以匹配 LP87562或 LP87522系列的任何配置。
PEET-GUI — PMIC Efficiency Estimator Tool (PEET)
TIPA-050041 — 适用于汽车应用的 AC8015 电源设计
此 AutoChips AC8015 汽车 SoC 电源设计适用于入门级驾驶舱汽车电源设计。本文档详细介绍了使用 LP87522-Q1 和 LP8732-Q1 PMIC 为 AC8015 电源轨进行电源设计的设计注意事项。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN-HR (RNF) | 26 | Ultra Librarian |
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