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多通道 IC (PMIC)

LP87564-Q1

現行

具有整合式開關的車用多相四路 4A 降壓轉換器

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使用指南

LP87564-Q1

現行
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產品詳細資料

Processor supplier Generic Processor name Generic Product type Processor and FPGA Regulated outputs (#) 4 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) 4 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 Step-down DC/DC Iout (typ) (A) 4, 4, 4, 4
Processor supplier Generic Processor name Generic Product type Processor and FPGA Regulated outputs (#) 4 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) 4 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 Step-down DC/DC Iout (typ) (A) 4, 4, 4, 4
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: 16 A (4 A per Phase)
    • Programmable Output Voltage Slew-Rate: 0.5 mV/µs to 10 mV/µs
  • 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: 16 A (4 A per Phase)
    • Programmable Output Voltage Slew-Rate: 0.5 mV/µs to 10 mV/µs
  • 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 LP8756x-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 LP8756x-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 LP8756x-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 LP8756x-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 LP8756x-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 LP8756x-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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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LP8756x-Q1 16-A Buck Converter With Integrated Switches datasheet PDF | HTML 2018/3/29
* 使用指南 LP87564W-Q1 Technical Reference Manual PDF | HTML 2024/6/18
* 使用指南 LP87564T-Q1 Technical Reference Manual PDF | HTML 2021/10/5
* 使用指南 LP875640-Q1 Technical Reference Manual 2018/8/17
使用指南 LP8756xQ1 Configuration Guide (Rev. A) PDF | HTML 2025/7/31
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 2020/11/23
應用說明 Integrated Power Supply Reference Design for NXP i.MX 8QuadMax Processor 2020/11/18
應用說明 How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 2020/1/27
應用說明 Stability Considerations for LP8756x-Q1 and LP8752x-Q1 PDF | HTML 2019/6/4
技術文章 How to meet European Commission ADAS requirements with TI DC/DC converters PDF | HTML 2019/5/9
使用指南 Power Solution for the NXP i.MX8 Processor 2018/8/8

設計與開發

電源供應解決方案

探索包括 LP87564-Q1 的解決方案。TI 提供適用於 TI 與非 TI 之系統單晶片 (SoC)、處理器、微控制器、感測器或現場可編程邏輯閘陣列 (FPGA) 的電源供應解決方案。

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開發板

LP87564Q1EVM — 具有整合式開關的四輸出、單相 4-A 降壓轉換器評估模組

LP87564Q1EVM 展示了德州儀器的積體電路 LP87564-Q1。

LP87564-Q1 為一高性能，多相降壓式轉換器，設計用途可滿足汽車應用中最新應用處理器的電源管理需求。本裝置包含四個降壓式 DC-DC 轉換器核心，並配置為四個單相降壓轉換器。LP87564-Q1 可驅動高達 4A + 4A + 4A +4A 的負載電流，並完美結合解決方案尺寸與效率。此裝置可透過 PC 及隨附的 GUI 控制。

此 EVM 可編程，以匹配 LP87564 或 LP87524 系列的任何配置。

使用指南: PDF
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模擬型號

LP8756-Q1 and LP8752-Q1 SIMPLIS Model

SNVMBU8.ZIP (42 KB) - SIMPLIS 模型
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模擬型號

LP87564-Q1 PSpice Transient Model (Rev. A)

SNVMB05A.ZIP (356 KB) - PSpice 模型
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模擬型號

LP875x-Q1 SIMPLIS Model

SNVMBT5.ZIP (42 KB) - SIMPLIS 模型
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計算工具

PEET-GUI — PMIC 效率評估器工具 (PEET)

The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
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參考設計

TIPA-050042 — 適用於汽車應用的 i.MX8 QuadMax 電源供應設計

此專為 NXP i.MX 8QuadMax 汽車 SoC 打造的電源供應設計，最適合汽車應用。文件說明一組電源設計和完整運作的開發板，該開發板將兩個 TI PMIC，即 LP87564-Q1 和 TPS65917-Q1，整合至 NXP i.MX 8QuadMax 應用處理器。硬體設計還包括 LPDDR4 SDRAM (6GB、x32 位元)、八路 SPI NOR 快閃記憶體 (64MB)、32GB eMMC、SD 卡和 USB 2.0/CAN/M.2/音訊/視訊介面。

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