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LP873220-Q1

現行

適用於 J6 入門處理器的汽車雙 2-A 降壓轉換器與雙線性穩壓器

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產品規格表

LP873220-Q1

現行
產品規格表 立即訂購

產品詳細資料

Processor supplier Texas Instruments Processor name Jacinto DRA7x 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 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 Product type Processor and FPGA
Processor supplier Texas Instruments Processor name Jacinto DRA7x 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 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 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
    • 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
    • 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 LP873220-Q1 is designed to meet the power management requirements of the latest processors and platforms in automotive camera and radar applications. The device has two step-down DC/DC converters, 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 gives high efficiency over a wide output-current range. The LP873220-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 LP873220-Q1 device also 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 LP873220-Q1 is designed to meet the power management requirements of the latest processors and platforms in automotive camera and radar applications. The device has two step-down DC/DC converters, 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 gives high efficiency over a wide output-current range. The LP873220-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 LP873220-Q1 device also 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 LP873220-Q1 Dual High-Current Buck Converter and Dual Linear Regulator datasheet (Rev. A) PDF | HTML 2021年 6月 4日
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 2020年 11月 23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

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LP87322Q1EVM — LP873220-Q1 雙路高電流降壓轉換器和雙路線性穩壓器評估模組

LP87322Q1EVM 展示了德州儀器的積體電路 LP873220-Q1。

LP873220-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。LP873220-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。此裝置可透過 PC 及隨附的 GUI 控制。此 EVM 可配置 I2C，且可進行編程以模擬任何其他 OTP 配置。

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 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 (...)
在雲端評估
參考設計

TIDA-01425 — 具有乙太網路和 CAN 的車用獨立閘道參考設計

TIDA-01425 為適合汽車閘道的子系統參考設計，著重於增加閘道應用的頻寬與處理能力。此設計採用乙太網路實體層收發器 (PHY) 以增加頻寬，並搭載汽車處理器以提供更優異的處理能力，讓汽車閘道能以更快的速度傳遞更多資料。此外，此設計也提供完整汽車閘道設計的起點，並具備完整電源樹狀結構、CAN PHY 和根據汽車要求和排放規格所選元件，以簡化設計程序。
Design guide: PDF
電路圖: PDF
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VQFN (RHD) 28 Ultra Librarian
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