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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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產品規格表

LP8732-Q1

現行
產品規格表 立即訂購

產品詳細資料

Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 2 Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.009 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) 9 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 2 Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.009 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) 9 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
VQFN (RHD) 28 25 mm² 5 x 5
  • 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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類型 標題 日期
* Data sheet LP8732xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator datasheet (Rev. A) PDF | HTML 2021年 6月 4日
Application note Power Supply Design for Semidrive X9P/X9U PDF | HTML 2022年 5月 19日
User guide Power Supply Design for Renesas R-Car M3 (Rev. A) 2021年 10月 29日
User guide LP873245-Q1 Technical Reference Manual PDF | HTML 2021年 10月 4日
User guide LP873248-Q1 Technical Reference Manual PDF | HTML 2021年 9月 2日
User guide LP873244-Q1 Technical Reference Manual PDF | HTML 2021年 3月 23日
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 2020年 11月 23日
Application note Power Supply Design for AC8015 Using LP87522E-Q1 and LP873244-Q1 PDF | HTML 2020年 9月 30日
Application note How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 2020年 1月 27日
User guide LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA78x, and TDA3x (Rev. C) 2018年 11月 20日
User guide LP8733-Q1 and LP8732-Q1 Configuration Guide (Rev. A) 2018年 10月 1日
User guide LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA71x, DRA79x, and TDA2E-17 (Rev. A) 2018年 7月 10日

設計與開發

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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

The LP87320Q1EVM demonstrates the integrated circuit LP873200-Q1.

The LP873200-Q1 has two high-performance step-down converters and two LDOs, designed to meet the power management requirements of the latest applications processors in automotive applications. The LP873200-Q1 is capable of driving up (...)

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模擬型號

LP87322-Q1 PSpice Transient Model (Rev. A)

SNVMB17A.ZIP (213 KB) - PSpice Model
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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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