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Product details

Parameters

Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 3 Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 2 Iq (Typ) (mA) 0.009 Features Enable Pin, I2C Control, Power Good, Power Sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Adjustable Operating temperature range (C) -40 to 125 Rating Automotive Processor name TDA3x Processor supplier Texas Instruments Configurability Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFN (RHD) 28 25 mm² 5 x 5 open-in-new Find other Multi-channel ICs (PMIC)

Features

  • 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 3 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

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Description

The LP87332A-Q1 is designed to meet the power management requirements of the latest processors and platforms in automotive camera and radar applications. The device contains two step-down DC-DC converters and two linear regulators and 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 LP87332A-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 LP87332A-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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Technical documentation

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Type Title Date
* Data sheet LP87332A-Q1 Dual High-Current Buck Converter and Dual Linear Regulator datasheet Sep. 22, 2017
Application note The Benefits of FlexPower PMIC Devices (Rev. B) Nov. 23, 2020
Technical article How to meet European Commission ADAS requirements with TI DC/DC converters May 09, 2019
User guide LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA78x, and TDA3x (Rev. C) Nov. 20, 2018

Design & development

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Hardware development

EVALUATION BOARD Download
document-generic User guide
199
Description

The LP87331Q1EVM demonstrates the integrated circuit LP87332A-Q1 from Texas Instruments.

The LP87332A-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 LP87332A-Q1 is (...)

Features
  • Software Controller
  • USB-TO-I²C interface supports 3.4 MHz clock rate on the I²C bus
  • Versatile GUI: Output current measurement and status indicators
  • Console application allows running scripts. Application can execute user specified scripts.
  • Convenient test points for all I/O's

Design tools & simulation

SIMULATION MODEL Download
SNVMB16A.ZIP (207 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
VQFN (RHD) 28 View options

Ordering & quality

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  • Ongoing reliability monitoring

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