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.

• 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)

• Regulated outputs (#)
• 3
• Vin (Min) (V)
• 2.8
• Vin (Max) (V)
• 5.5
• Iout (Max) (A)
• 10
• Rating
• Automotive
• LDO
• 0
• Iq (Typ) (mA)
• 0.0067
• Features
• Diagnostics, Dynamic Voltage Scaling, Enable, Enable Pin, I2C Control, Over Current Protection, Power Good, Power Sequencing, Power Supply and System Monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Fixed
• Processor name
• Generic
• Processor supplier
• Generic
• Shutdown current (ISD) (Typ) (uA)
• 1.4
• Switching frequency (Typ) (kHz)
• 2000
• Configurability
• Factory programmable, Software configurable

LP87521-Q1的完整型号有：LP87521ERNFRQ1、LP87521ERNFTQ1、LP87521SRNFRQ1，以下是这些产品的关键参数及官网采购报价：

LP87521ERNFRQ1，工作温度：-40 to 125，封装：VQFN-HR (RNF)-26，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LP87521ERNFRQ1的批量USD价格：2.32（1000+）

LP87521ERNFTQ1，工作温度：-40 to 125，封装：VQFN-HR (RNF)-26，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LP87521ERNFTQ1的批量USD价格：2.713（1000+）

LP87521SRNFRQ1，工作温度：-40 to 125，封装：VQFN-HR (RNF)-26，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LP87521SRNFRQ1的批量USD价格：2.32（1000+）

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

LP87561Q1EVM 展示了德州仪器 (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。

LP87521-Q1 PSpice Transient Model (Rev. A)

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。