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多通道 IC (PMIC)

LP87524P-Q1

現行

適用於 AWR MMIC 的車用多相 4 MHz、3A/1.0V + 3A/1.0V + 2.5A/1.8V + 1.5A/1.2V 降壓轉換器

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產品規格表

LP87524P-Q1

現行
產品規格表 立即訂購

產品詳細資料

Processor supplier Texas Instruments Processor name mmWave AWR Product type Radar sensor 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, Spread-Spectrum Clock (SSC) Generation, Synchronous rectification, 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) 4400 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 4000 Step-down DC/DC Iout (typ) (A) 2.5, 3.5, 4, 4
Processor supplier Texas Instruments Processor name mmWave AWR Product type Radar sensor 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, Spread-Spectrum Clock (SSC) Generation, Synchronous rectification, 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) 4400 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 4000 Step-down DC/DC Iout (typ) (A) 2.5, 3.5, 4, 4
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
  • 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:
    • Total Output Current Up To 10 A
    • Output Voltage Slew-Rate 3.8 mV/µs
  • 4-MHz Switching Frequency
  • Spread-Spectrum Mode and Phase Interleaving
  • Configurable General Purpose I/O (GPIOs)
  • I2C-Compatible Interface which 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
  • 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:
    • Total Output Current Up To 10 A
    • Output Voltage Slew-Rate 3.8 mV/µs
  • 4-MHz Switching Frequency
  • Spread-Spectrum Mode and Phase Interleaving
  • Configurable General Purpose I/O (GPIOs)
  • I2C-Compatible Interface which 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 LP87524B/J/P-Q1 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 4 single phase outputs. The device is controlled by an I2C-compatible serial interface and by enable signals.

The automatic PFM/PWM (AUTO mode) operation maximizes efficiency over a wide output-current range. The LP87524B/J/P-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) thus improving the accuracy of the output voltage. In addition the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP87524B/J/P-Q1 device supports load-current measurement without the addition of external current-sense resistors. In addition, the LP87524B/J/P-Q1 supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also 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 the in-rush current.

The LP87524B/J/P-Q1 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 4 single phase outputs. The device is controlled by an I2C-compatible serial interface and by enable signals.

The automatic PFM/PWM (AUTO mode) operation maximizes efficiency over a wide output-current range. The LP87524B/J/P-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) thus improving the accuracy of the output voltage. In addition the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP87524B/J/P-Q1 device supports load-current measurement without the addition of external current-sense resistors. In addition, the LP87524B/J/P-Q1 supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also 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 the in-rush current.
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LP87524B-Q1 現行 適用於 AWR 和 IWR MMIC 的多相 4MHz、4A/1.8V + 2.5A/2.3V + 1.5A/3.3V + 1.5A/1.2V 降壓轉換器 This product is for LDO-based radar systems.
LP87524J-Q1 現行 適用於 AWR 和 IWR MMIC 的多相 4 MHz、4A/1.0V + 2.5A/1.8V + 1.5A/3.3V + 1.5A/1.2V 降壓轉換器 This product is for LDO-free radar designs.

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類型 標題 日期
* Data sheet LP87524B/J/P-Q1 Four 4-MHz Buck Converters for AWR and IWR MMICs datasheet (Rev. B) PDF | HTML 2018年 12月 6日
User guide LP87524x-Q1 Technical Reference Manual (Rev. A) PDF | HTML 2021年 5月 10日
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 2020年 11月 23日

設計與開發

電源供應解決方案

探索包括 LP87524P-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。

查看解決方案
開發板

LP87524Q1EVM — LP87524-Q1 四路輸出單相降壓轉換器評估模組

LP87524Q1EVM 展示了德州儀器的積體電路 LP87524-Q1。LP87524-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，並配置為四個獨立單相降壓轉換器。LP87524-Q1 能夠驅動高達 10A 總負載電流，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。
使用指南: PDF
TI.com 無法提供
參考設計

TIDEP-01012 — 使用串接 mmWave 感測器的成像雷達參考設計

串級開發套件有兩個主要使用案例：
  1. 要將 MMWCAS-DSP-EVM 用作捕獲卡，通過使用 mmWave studio 工具全面評估 AWR2243 四晶片級聯性能，請閱讀 TIDEP-01012 設計指南。
  2. 要使用 MMWCAS-DSP-EVM 開發雷達實時軟體應用，請閱讀 TIDEP-01017 設計指南。

此參考設計使用串接成像雷達射頻 (RF) 系統。串接雷達裝置可支援長程雷達 (LRR) 波束成形應用，以及具備強化角度解析度性能的中程雷達 (MRR) 和短程雷達 (SRR) 多輸入多輸出 (MIMO) 應用。

AWR2243 串接雷達 RF 開發套件透過多裝置波束成形配置，可估計並追蹤超過 (...)

Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN-HR (RNF) 26 Ultra Librarian
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  • 認證摘要
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