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LP87521-Q1

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具有集成开关的汽车类 10A、四相、单输出降压转换器

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LP87521-Q1

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米6体育平台手机版_好二三四详情

Regulated outputs (#) 3 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 10 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 Step-up DC/DC converter 0 Step-down DC/DC converter 4 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.0067 Rating Automotive Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
Regulated outputs (#) 3 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 10 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 Step-up DC/DC converter 0 Step-down DC/DC converter 4 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.0067 Rating Automotive Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
VQFN-HR (RNF) 26 18 mm² 4.5 x 4
  • 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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LP87524-Q1 正在供货 具有集成开关的汽车级 10A、单相、四路输出降压转换器 Quad output phase configuration of LP8752x-Q1 family.
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类型 标题 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年 3月 15日
应用手册 使用 LP8752-Q1 和 LP8756-Q1 的 Semidrive X9SP（兼容 X9HP）电源设计 PDF | HTML 英语版 PDF | HTML 2024年 7月 23日
应用手册 Semidrive X9P/X9U 电源设计 PDF | HTML 英语版 PDF | HTML 2022年 10月 21日
用户指南 LP87521S-Q1 Technical Reference Manual PDF | HTML 2021年 9月 2日
应用简报 FlexPower PMIC 设备的优势 (Rev. B) 英语版 (Rev.B) PDF | HTML 2021年 5月 19日
应用手册 How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 2020年 1月 27日
用户指南 LP87521E-Q1 2019年 10月 2日
应用手册 Stability Considerations for LP8756x-Q1 and LP8752x-Q1 PDF | HTML 2019年 6月 4日
用户指南 LP8752x-Q1 Configuration Guide 2018年 10月 11日

设计和开发

电源解决方案

了解包含 LP87521-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

LP87561Q1EVM — 具有集成开关的四相 16A 降压转换器评估模块

LP87561Q1EVM 展示了米6体育平台手机版_好二三四 (TI) 的集成电路 LP87561-Q1。

LP87561-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，它们配置为单个四相降压转换器。LP87561-Q1 可以驱动高达 16A 的负载电流，并且集出色的解决方案尺寸和效率于一体。该器件可通过 PC 和提供的 GUI 进行控制。

可以对此 EVM 进行编程，以匹配 LP87561 或 LP87521 系列的任何配置。

用户指南: PDF
TI.com 上无现货
仿真模型

LP87521-Q1 PSpice Transient Model (Rev. A)

SNVMB15A.ZIP (271 KB) - PSpice Model
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仿真模型

LP8756-Q1 and LP8752-Q1 SIMPLIS Model

SNVMBU8.ZIP (42 KB) - SIMPLIS Model
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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。
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原理图

LP8756x and LP8752x Design Checklist

SNVR480.ZIP (116 KB)
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封装 引脚 CAD 符号、封装和 3D 模型
VQFN-HR (RNF) 26 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

推荐米6体育平台手机版_好二三四可能包含与 TI 此米6体育平台手机版_好二三四相关的参数、评估模块或参考设计。

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