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多通道 IC (PMIC)

LP8732-Q1

現行

汽車雙 2-A 降壓轉換器和雙線性穩壓器

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LP8732-Q1

現行
產品規格表 立即訂購

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 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 2 Configurability Factory programmable, Software configurable Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.009 Switching frequency (max) (kHz) 2200 Shutdown current (ISD) (typ) (µA) 9 Switching frequency (typ) (kHz) 2000
Processor supplier Generic Processor name Generic Product type Processor and FPGA Regulated outputs (#) 4 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 2 Configurability Factory programmable, Software configurable Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.009 Switching frequency (max) (kHz) 2200 Shutdown current (ISD) (typ) (µA) 9 Switching frequency (typ) (kHz) 2000
VQFN (RHD) 28 25 mm² (5 mm × 5 mm)
  • 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
  • Two high-efficiency step-down DC/DC converters:
    • Output voltage: 0.7 V to 3.36 V
    • Maximum output current 2 A per phase
    • Adding and shedding auto phase and force multi-phase operations in dual-phase configuration
    • Remote differential feedback voltage sensing in dual-phase configuration
    • Programmable output-voltage slew rate from 0.5 mV/µs to 10 mV/µs
    • 2-MHz switching frequency
    • Spread-spectrum mode and phase interleaving for EMI reduction
  • Two linear regulators:
    • Input voltage: 2.5 V to 5.5 V
    • Output voltage: 0.8 V to 3.3 V
    • Maximum output current 300 mA
  • Configurable general-purpose output signals (GPO, GPO2)
  • 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)
  • 28-pin, 5-mm × 5-mm VQFN package with wettable flanks
  • 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
  • Two high-efficiency step-down DC/DC converters:
    • Output voltage: 0.7 V to 3.36 V
    • Maximum output current 2 A per phase
    • Adding and shedding auto phase and force multi-phase operations in dual-phase configuration
    • Remote differential feedback voltage sensing in dual-phase configuration
    • Programmable output-voltage slew rate from 0.5 mV/µs to 10 mV/µs
    • 2-MHz switching frequency
    • Spread-spectrum mode and phase interleaving for EMI reduction
  • Two linear regulators:
    • Input voltage: 2.5 V to 5.5 V
    • Output voltage: 0.8 V to 3.3 V
    • Maximum output current 300 mA
  • Configurable general-purpose output signals (GPO, GPO2)
  • 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)
  • 28-pin, 5-mm × 5-mm VQFN package with wettable flanks

The LP8732xx-Q1 is designed to meet the power management requirements in automotive applications. The device has two step-down DC/DC converters (which can be configured as a single dual-phase regulator or two single-phase regulators), two linear regulators, and two general-purpose digital-output signals. The device is controlled by an I2C-compatible serial interface and by an enable signal.

The automatic PWM/PFM (AUTO mode) operation together with the automatic phase adding/shedding gives high efficiency over a wide output-current range. The LP8732xx-Q1 supports remote voltage sensing (differential in dual-phase configuration) 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 LP8732xx-Q1 device supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

The LP8732xx-Q1 is designed to meet the power management requirements in automotive applications. The device has two step-down DC/DC converters (which can be configured as a single dual-phase regulator or two single-phase regulators), two linear regulators, and two general-purpose digital-output signals. The device is controlled by an I2C-compatible serial interface and by an enable signal.

The automatic PWM/PFM (AUTO mode) operation together with the automatic phase adding/shedding gives high efficiency over a wide output-current range. The LP8732xx-Q1 supports remote voltage sensing (differential in dual-phase configuration) 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 LP8732xx-Q1 device supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. 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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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 LP8732xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator datasheet (Rev. A) PDF | HTML 2021/6/4
* 使用指南 LP873245-Q1 Technical Reference Manual PDF | HTML 2021/10/4
* 使用指南 LP873248-Q1 Technical Reference Manual PDF | HTML 2021/9/2
* 使用指南 LP873244-Q1 Technical Reference Manual PDF | HTML 2021/3/23
應用說明 Power Supply Design for Semidrive X9P/X9U PDF | HTML 2022/5/19
使用指南 Power Supply Design for Renesas R-Car M3 (Rev. A) 2021/10/29
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 2020/11/23
應用說明 Power Supply Design for AC8015 Using LP87522E-Q1 and LP873244-Q1 PDF | HTML 2020/9/30
應用說明 How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 2020/1/27
使用指南 LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA78x, and TDA3x (Rev. C) 2018/11/20
使用指南 LP8733-Q1 and LP8732-Q1 Configuration Guide (Rev. A) PDF | HTML 2018/10/1
使用指南 LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA71x, DRA79x, and TDA2E-17 (Rev. A) 2018/7/10

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開發板

LP87320Q1EVM — LP873200-Q1 I²C 可配置雙路高電流降壓轉換器和雙路線性穩壓器 EVM

LP87320Q1EVM 展示積體電路 LP873200-Q1。

LP873200-Q1 具有兩個高性能降壓式轉換器和兩個 LDO，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。LP873200-Q1 可驅動高達 2A + 2A 負載電流，並完美結合解決方案尺寸與效率。LP873200-Q1 經過專門設計，可在啟動時輕鬆配置 PMIC，以滿足各種電壓和排序需求。此裝置可透過 PC 及隨附的 GUI 控制。

使用指南: PDF
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模擬型號

LP87322-Q1 PSpice Transient Model (Rev. A)

SNVMB17A.ZIP (213 KB) - PSpice 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-050041 — 適用於汽車應用的 AC8015 電源供應設計

此電源設計適用於 AutoChips AC8015 汽車 SoC，專為入門級駕駛艙汽車電源設計而打造。本文件詳細說明使用 LP87522-Q1 與 LP8732-Q1 PMIC 之 AC8015 電源軌電源設計的設計考量。

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參考設計

TIPA-050044 — 適用於汽車應用的 X9P/U 電源供應設計

此專為 SemiDrive X9U 和 X9U 汽車 SoC 打造的電源供應設計，最適合汽車資訊娛樂及電子駕駛艙應用。本文件概述使用 FlexPower PMIC 的電源設計考量。

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參考設計

TIPA-050049 — 適用於汽車應用的 R-Car M3N 和 M3W 電源供應設計

此專為 Renesas R-Car M3x SoC 打造的電源供應設計，最適合汽車資訊娛樂、電子駕駛艙與閘道應用。本使用指南詳細說明使用 LP87565-Q1、LP8733-Q1 和 LP8732-Q1 PMIC 的 R-Car M3N 和 R-Car M3W SoC 電源軌的電源設計考量。

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VQFN (RHD) 28 Ultra Librarian
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