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LP87523-Q1

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具有集成开关的汽车级 10A、两相 + 单相 + 单相、三路输出降压转换器

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LP87523-Q1

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产品详情

Processor supplier Generic Processor name Generic Product type Processor and FPGA Regulated outputs (#) 3 Step-down DC/DC converter 4 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 2 Configurability Factory programmable, Software configurable Features Diagnostics, Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.0067 Switching frequency (max) (kHz) 2200 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 2000
Processor supplier Generic Processor name Generic Product type Processor and FPGA Regulated outputs (#) 3 Step-down DC/DC converter 4 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 2 Configurability Factory programmable, Software configurable Features Diagnostics, Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.0067 Switching frequency (max) (kHz) 2200 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 2000
VQFN-HR (RNF) 26 18 mm² (4.5 mm × 4 mm)
  • 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)
  • 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.

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

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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 LP875230E Technical Reference Manual PDF | HTML 2024-1-30
* 用户指南 LP875230D-Q1 Technical Reference Manual PDF | HTML 2023-4-26
* 用户指南 LP875230C-Q1 Technical Reference Manual PDF | HTML 2021-9-2
* 用户指南 LP87523J-Q1 Technical Reference Manual 2019-3-28
用户指南 LP8752x-Q1 配置指南 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2025-10-15
应用手册 使用 LP87565V-Q1 和 LP875230C-Q1 的 Semidrive G9H （兼容 G9V/Q/X）电源设计 PDF | HTML 英语版 PDF | HTML 2025-3-18
应用手册 使用 LP875230C-Q1 和 LP87565V-Q1 的 Semidrive X9H 电 源设计 PDF | HTML 英语版 PDF | HTML 2022-6-29
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 How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 2020-1-27
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 LP87523-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。

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评估板

LP87563Q1EVM — 具有集成开关的三路输出 8-A + 4-A + 4-A 降压转换器评估模块

LP87563Q1EVM 展示了德州仪器 (TI) 的集成电路 LP87563-Q1。

LP87563-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双相降压转换器和两个单相降压转换器。LP87563-Q1 可以驱动高达 8A + 4A + 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 LP87563或 LP87523系列的任何配置。

用户指南: PDF
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仿真模型

LP87523-Q1 PSpice Transient Model (Rev. A)

SNVMB03A.ZIP (338 KB) - PSpice 模型
支持的产品和硬件
仿真模型

LP8756-Q1 and LP8752-Q1 SIMPLIS Model

SNVMBU8.ZIP (42 KB) - SIMPLIS 模型
支持的产品和硬件
仿真模型

LP875x-Q1 SIMPLIS Model

SNVMBT5.ZIP (42 KB) - SIMPLIS 模型
支持的产品和硬件
计算工具

PEET-GUI — PMIC Efficiency Estimator Tool (PEET)

PMIC 效率估算器工具 (PEET GUI) 是一个图形用户界面，可根据设计条件轻松评估 PMIC 直流/直流稳压器的效率。PEET GUI 可用于单独配置每个直流/直流稳压器，并以图形和表格两种格式提供实时效率和功耗数据。
支持的产品和硬件
参考设计

TIDEP-01002 — 成本优化的数字仪表组汽车参考设计，配备 Jacinto™ 汽车处理器

Jacinto™ 汽车处理器数字仪表组汽车参考设计 (DCARD) 是用于可重新配置数字仪表组系统的成本优化设计。  DCARD 是完整且独立的六层 PCB 设计，可在 1920x720 分辨率显示器上实现 60fps 数字仪表组解决方案，同时可优化整体系统 BOM。DCARD 还支持单区音频输出，用于警告铃声、从 CAN 唤醒和以太网连接。可以根据最终产品的要求添加其他功能。例如，摄像头输入可用于集成后视摄像头或驾驶员监控，第二显示输出可用于驱动抬头显示 (HUD)。  系统电源管理经过优化，可最大限度缩减可重新配置数字仪表组用例的整体系统 BOM。  (...)

支持的产品和硬件
参考设计

TIPA-050043 — 适用于汽车应用的 X9H 电源设计

此 SemiDrive X9H 汽车 SoC 电源设计针对汽车信息娱乐系统和电子驾驶舱应用进行了优化。本文档详细介绍了使用 LP87565-Q1 和 LP87523-Q1 电源管理 IC (PMIC) 进行电源设计的设计注意事项。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VQFN-HR (RNF) 26 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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