Product details


Regulated outputs (#) 9 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 14 TI functional safety category Functional Safety-Compliant Step-down DC/DC converter 5 LDO 4 Features Comm Control, I2C Control , SPI Control, Adaptive/Dynamic Voltage Scaling, Power Good, Power Sequencing, Soft Start Adjustable, Dynamic Voltage Scaling, Multiple Outputs, Output Discharge, Over Current Protection Operating temperature range (C) -40 to 125 Rating Automotive Processor name TDA4VM, DRA829V Shutdown current (Typ) (uA) 2 Configurability Factory programmable, Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFNP (RWE) 56 64 mm² 8 x 8 VQFNP (RWE) 56 open-in-new Find other Multi-channel ICs (PMIC)


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Operates from 3 V to 5.5 V Input Supply
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C4A
  • SafeTI Semiconductor Component
    • Designed for Functional Safety Applications
    • Documentation Available to Aid ISO 26262 System Design up to ASIL D
    • Systematic Capability and Hardware Integrity up to ASIL D
    • Input Supply Monitor and Over-Voltage Protection
    • Windowed Voltage and Over-Current Monitors
    • Integrated Q&A or Trigger Mode Watchdog Module
    • Dual Channel Level or PWM Error Signal Monitoring (ESM) Supporting Processors with Integrated Safety-MCU
    • Thermal Monitoring With High Temperature Warning and Thermal Shutdown
    • NVM Bit-Integrity Error Detection With Options to Proceed or Hold Power-Up Sequence and Reset Release
  • Low-Power Consumption
    • 2 µA Typical Shutdown Current
    • 7 µA Typical in Back Up Supply Only Mode
    • 20 µA Typical in Low Power Standby Mode
  • Five Step-Down Switched-Mode Power Supply (BUCK) Regulators:
    • 0.3 V to 3.34 V Output Range in 5, 10, or 20 mV Steps
    • One with 4 A, Three with 3.5 A, and One with 2 A Capability
    • Four of the Bucks with Flexible Multi-Phase Capability which can Source up to 14 A from a Single Rail
    • Short-Circuit Protection and Over-Current Protection
    • Internal Soft-Start for In-Rush Current Limitation
    • 2.2 MHz / 4.4 MHz Switching Frequency
    • Ability to Synchronize to External Clock Input
  • Three Low-Dropout (LDO) Linear Regulators With Configurable Bypass Mode
    • 0.6 V to 3.3 V Output Range with 50 mV Steps in Linear Regulation Mode
    • 1.7 V to 3.3 V Output Range in Bypass Mode
    • 500 mA Capability With Short-Circuit and Over-Current Protection
  • One Low-Dropout (LDO) Linear Regulator with Low-Noise Performance
    • 1.2 V to 3.3 V Output Range in 25 mV Steps
    • 300 mA Capability With Short-Circuit and Over-Current Protection
  • Power Sequence Control:
    • Configurable Power-Up and Power-Down Sequences between Power States (NVM)
    • Digital Output Signals can be Included in the Power Sequences
    • Digital Input Signals can be used to trigger Power Seqence Transitions
  • 32 kHz Crystal Oscillator with Option to Output a Buffered 32-kHz Clock Output
  • Real-Time Clock (RTC) with Alarm and Periodic Wake-Up Mechanism
  • One SPI or Two I2C Control Interfaces, with Second I2C Interface Dedicated for Q&A Watchdog Communication
  • Package Option:
    • 8-mm × 8-mm 56-pin VQFNP With 0.5-mm Pitch

All trademarks are the property of their respective owners.

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The TPS6594-Q1 device provides four flexible multi-phase configurable step-down converters with 3.5 A per phase, and one additional step-down converter with 2 A capability.

All of the bucks can be synchronized to an internal 2.2 MHz or 4.4 MHz or an external 1 MHz, 2 MHz, or 4 MHz clock signal. An integrated spread-spectrum modulation can be added to the synchronized buck switching clock signal to improve the device’s EMC performance, which can also be made available to external devices through a GPIO output pin. The device provides four LDOs: three with 500 mA capability, which can be configured as load switches; one with 300 mA capability and low-noise performance.

Non-volatile memory (NVM) is used to control the default power sequences and default configurations, such as output voltage and GPIO configurations. The NVM is pre-programmed to allow start-up without external programming. Most static configurations can be changed from the default through SPI or I2C registers to configure the device to meet many different system needs. As a safety feature, the NVM contains a bit-integrity-error detection feature to stop the power-up sequence if an error is detected, preventing the system from starting in an unknown state.

The TPS6594-Q1 includes a 32 kHz crystal oscillator, which generates an accurate 32 kHz clock for the integrated RTC module. A backup-battery management provides power to the crystal oscillator and the RTC module from a coin cell battery or a super-cap in the event of power loss from the main supply.

The TPS6594-Q1 device includes protection and diagnostic mechanisms such as register and interface CRC, short-circuit protection, thermal monitoring, and shutdown. The device also includes a Q&A or trigger mode watchdog to monitor for software lockup, and 2 system error monitoring inputs with fault injection options to monitor the error signals from the attached SoC or MCU. The TPS6594-Q1 can notify the processor of these events through the interrupt handler, allowing the processor to take action in response.

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Important info

Functional safety information is available.  Request now

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Technical documentation

Design & development

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

Hardware development

DRA821 system-on-module
document-generic User guide

The J7200XSOMG01EVM system-on-module—when paired with the J721EXCP01EVM common processor board—lets you evaluate the DRA821 processor for networking applications throughout automotive and industrial markets. These processors perform particularly well in industrial and automotive gateway (...)

  • DRA821 (J7200) processor
  • Mates with the Common Processor board (SOM and CP are needed for base EVM functionality)
  • Optimized power solution (PMIC)
  • DRAM, LPDDR4‐3733, 4GByte total memory, support inline ECC
  • xSPI NOR flash, 512Mb memory (8bit)
  • HyperFlash + HyperRAM, 512Mb flash memory + 256Mb RAM
document-generic User guide
The TP6594EVM boards can be used to demo, debug, test, and configure one or more TPS6594x power management ICs. The device installed by default varies by board with details outlined in the User’s Guide. The primary difference between the boards is the phase configuration setup of the (...)
  • Input voltage range from 3 V to 5.5 V
  • Onboard MSP432 to communicate with PMIC using GUI + provided USB cable
  • Each EVM orderable has a different default configuration; the boards can be reworked to support any other TPS6593 or TPS6594 phase configurations
  • Boards can be stacked to support multi-PMIC (...)

Software development

GUI for evaluation and configuration of the TPS6594x, TPS6593x, and LP876x scalable PMICs
SCALABLE-PMIC-GUI — GUI Composer tool for evaluating and configuring Scalable PMICs.
  • Register view page
  • NVM configuration page
  • NVM validation page

Design tools & simulation

SLVMDJ8A.ZIP (239 KB) - PSpice Model
SLVMDK9.ZIP (336 KB) - PSpice Model
Efficiency estimation tool for TPS6594-Q1, LP8756-Q1, LP8758, LP8770 and TPS650330-Q1
PEET-GUI — Efficiency estimator tool for Texas Instruments PMICs such as TPS6594-Q1, LP8756 family, LP8758 family and more.
  • Efficiency data based on available measurement data
  • Automatic data plotting
  • Export efficiency curves

Reference designs

Gateway automotive reference design
TIDEP-01022 Automotive trends are rapidly evolving, and as a result, new domain- and zonal-based gateway architectures are being used to efficiently handle the ever-increasing amount of data coming into and moving throughout the vehicle, and getting sent to the cloud. A properly functioning domain (or zonal (...)
document-generic Schematic document-generic User guide
Automotive domain controller for gateway, assisted and automated driving systems reference design
TIDEP-01020 Decentralized vehicle architectures on the road today use individual ECUs that lack processing power and high-speed interfaces to handle the complex tasks and data movement needs of newly emerging automotive architectures. Higher level functions require the right combination of DMIPS, data bandwidth (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFNP (RWE) 56 View options

Ordering & quality

Information included:
  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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

Support & training

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