Product details


Regulated outputs (#) 3 Vin (Min) (V) 4 Vin (Max) (V) 36 Iout (Max) (A) 3.1 TI functional safety category Functional Safety-Compliant Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 1 LDO 0 Iq (Typ) (mA) 47 Features Diagnostics, MCU Interface, Over Current Protection, Power Supply and System Monitoring, Spread-Spectrum Clock (SSC) Generation, Synchronous Rectification, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Automotive Processor name Multiple Processor supplier Multiple Shutdown current (ISD) (Typ) (uA) 3 Configurability Factory programmable, Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFNP (RWG) 40 36 mm² 6 x 6 open-in-new Find other Multi-channel ICs (PMIC)


  • AEC-Q100 qualified for automotive applications:
    • Device temp grade 1:-40°C to +125°C, TA
  • Supports system-level functional safety requirements up to ASIL-C (ISO 26262) and SIL-2 (IEC 61508)
  • Synchronous buck preregulator (BUCK1)
    • Input voltage range from 4 V to 36 V
    • Output currents up to 3.1 A
    • Factory-selectable output voltage: 3.3 V or 3.6 V
  • Synchronous buck regulator (BUCK2)
    • Fixed input voltage: 3.3 V or 3.6 V
    • Output currents up to 2 A
    • Factory-selectable output voltage: 1.2 V, 1.25 V, 1.8 V, or 2.3 V
  • Synchronous boost converter (BOOST)
    • Fixed input voltage of 3.3 V or 3.6 V
    • Output currents up to 600 mA
    • Output voltage of 5 V

  • Phase-locked loop (PLL)
    • Output frequency around 2.2 MHz
    • Supports modulated or unmodulated external clock at SYNC_IN pin
  • For all regulators
    • Soft-start feature
    • Independent voltage monitoring with diagnostics
    • Overcurrent, overload, overvoltage, undervoltage, and thermal protection
    • Internal loop compensation
  • Integrated adaptively randomized spread spectrum (ARSS) modulation for regulator switching clock
  • 3-µA quiescent current in the OFF state
  • SPI for control and diagnostics
  • Two general-purpose external-voltage monitors
  • Integrated Q&A watchdog and reset supervisor for MCU or DSP
  • Thermally enhanced 40-Pin VQFNP package with 0.5-mm pitch
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The TPS65313-Q1 device is a power management IC (PMIC) that meets the requirements of MCU-controlled or DSP-controlled automotive, industrial, machinery, or transportation systems. With the integration of commonly used features, the device helps reduce board space and system cost.

The device includes one wide-VIN synchronous buck regulator (BUCK1) combined with one low-voltage (LV) buck regulator (BUCK2) and one boost converter (BOOST), which are powered from the wide-VIN buck regulator (BUCK1). The device features a low quiescent current in the OFF state to reduce current consumption in case the system is permanently connected to the supply. All outputs are protected against overvoltage, overload, and overtemperature conditions.

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More Information

Functional Safety Information and other information is available. Request now

Technical documentation

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Type Title Date
* Data sheet TPS65313-Q1 High-Voltage Power-Management IC for Automotive Applications datasheet (Rev. B) Dec. 20, 2019
User guide TPS65313-Q1 Technical Reference Manual Mar. 05, 2020
Application note TPS65313-Q1 and TPS65653-Q1 LDO free power solution for AWR1642/AWR1843 Jan. 27, 2020
User guide TPS65313-EVM User’s Guide (Rev. A) Sep. 20, 2019
Application note TPS65313-Q1 CISPR-25 EMC Measurement Report Mar. 21, 2018

Design & development

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Hardware development

document-generic User guide
The TPS65313-Q1 device is a power management integrated circuit (PMIC) for safety-relevant automotive applications. This device integrates a high-voltage off-battery buck regulator (HV BUCK1), a low-voltage buck regulator (LV BUCK2), and a 5-V boost regulator (BOOST). The TPS65313-Q1 (...)
  • Evaluation of TPS65313-Q1 device features for the default orderable part number
  • Configuration of all the device orderable part numbers on the EVM for customers to evaluate all the configurations
  • On board USB2ANY MCU to communicate with device GUI

Design tools & simulation

SLDM019.ZIP (107 KB) - PSpice Model
SLDM020.ZIP (104 KB) - PSpice Model
SLDM021.ZIP (118 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
VQFNP (RWG) 40 View options

Ordering & quality

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