Product details

Regulated outputs (#) 4 Vin (Min) (V) 5 Vin (Max) (V) 30 Iout (Max) (A) 4 Rating Automotive Step-down DC/DC controller 2 Step-down DC/DC converter 0 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 2 Iq (Typ) (mA) 0.065 Features Enable, I2C Control, Power Good, Synchronous Rectification, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Processor name Generic Processor supplier Generic Configurability Hardware configurable
Regulated outputs (#) 4 Vin (Min) (V) 5 Vin (Max) (V) 30 Iout (Max) (A) 4 Rating Automotive Step-down DC/DC controller 2 Step-down DC/DC converter 0 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 2 Iq (Typ) (mA) 0.065 Features Enable, I2C Control, Power Good, Synchronous Rectification, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Processor name Generic Processor supplier Generic Configurability Hardware configurable
HTSSOP (DAP) 38 101 mm² 12.5 x 8.1
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
  • Input Operating Range 5 V to 30 V (VBAT)
  • Two, Adjustable Output Voltage, Step-Down Switching Voltage Regulators
  • External Clock Input
  • Soft-Start Control for Step-Down Regulators
  • Programmable, Linear Regulator (VSTBY), Low Quiescent Current (65 µA typ)
  • Programmable, Linear Regulator (VLR)
  • Overvoltage Detection and Shutdown
  • Protected, High-Side Drive Ouput (HSD)
  • Power-On Reset for Standby Regulator (VSTBY)
  • Serial Communication, I2C Interface
  • Low Voltage Warning Detection With Programmable Input Threshold (LVWIN, VBATW)
  • Enable Feature, Controls VBUCK 1
  • Programmable Power Good Delay Time (PGDLY) for VSTBY
  • Current-Limit and Independent Thermal Detection and Shutdown Protection on All Regulators and High-Side Driver Output
  • Thermally Enhanced 38-Pin DAP PowerPAD™ Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
  • Input Operating Range 5 V to 30 V (VBAT)
  • Two, Adjustable Output Voltage, Step-Down Switching Voltage Regulators
  • External Clock Input
  • Soft-Start Control for Step-Down Regulators
  • Programmable, Linear Regulator (VSTBY), Low Quiescent Current (65 µA typ)
  • Programmable, Linear Regulator (VLR)
  • Overvoltage Detection and Shutdown
  • Protected, High-Side Drive Ouput (HSD)
  • Power-On Reset for Standby Regulator (VSTBY)
  • Serial Communication, I2C Interface
  • Low Voltage Warning Detection With Programmable Input Threshold (LVWIN, VBATW)
  • Enable Feature, Controls VBUCK 1
  • Programmable Power Good Delay Time (PGDLY) for VSTBY
  • Current-Limit and Independent Thermal Detection and Shutdown Protection on All Regulators and High-Side Driver Output
  • Thermally Enhanced 38-Pin DAP PowerPAD™ Package

The TPS43331-Q1 is a multi-rail output voltage regulator, with two synchronous switch mode controllers and two linear regulators. In addition, there is a reverse protected high side switch and voltage supervisor for monitoring the standby regulator and input voltage. The regulator outputs and high side switch are controlled either by discrete inputs for certain outputs and serial interface using the I2C configuration for outputs not controlled by discrete inputs.

The standby linear regulator (VSTBY) is high voltage tolerant and can be connected directly to the vehicle battery, the quiescent current is typically 65 µA to maintain a regulated output with light loads.

The TPS43331-Q1 is a multi-rail output voltage regulator, with two synchronous switch mode controllers and two linear regulators. In addition, there is a reverse protected high side switch and voltage supervisor for monitoring the standby regulator and input voltage. The regulator outputs and high side switch are controlled either by discrete inputs for certain outputs and serial interface using the I2C configuration for outputs not controlled by discrete inputs.

The standby linear regulator (VSTBY) is high voltage tolerant and can be connected directly to the vehicle battery, the quiescent current is typically 65 µA to maintain a regulated output with light loads.

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Technical documentation

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* Data sheet TPS43331-Q1 Dual Switcher and Linear Regulators datasheet (Rev. B) PDF | HTML 20 Jul 2017
White paper Power Management IC (PMIC) Guide for Automotive (Rev. A) 29 Oct 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS43331EVM — TPS43331EVM Evaluation Module

The Texas Instruments TPS43331EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS43331 Switch Mode Power Supply – Multiple-output voltage regulator.

Not available on TI.com
Simulation model

TPS43331-Q1 Unencrypted PSpice Transient Model Package (Rev. A) TPS43331-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

Calculation tool

TPS43331-Q1-DESIGN-CAL-TOOL TPS43331-Q1 CAL TOOL

The worksheet is designed for use with Microsoft Excel 2007. It intends to assist circuit designer in their day-to-day calculations.

This worksheet includes two segments:

Recommendation:
Calculate the minimum requirements for different components to guarantee the input voltage, output voltage or other (...)

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HTSSOP (DAP) 38 View options

Ordering & quality

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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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