Product details

Regulated outputs (#) 3 TI functional safety category Functional Safety-Compliant Vin (Min) (V) 4 Vin (Max) (V) 36 Iout (Max) (A) 3.1 Rating Automotive 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 Processor name Generic Processor supplier Generic Shutdown current (ISD) (Typ) (uA) 3 Switching frequency (Typ) (kHz) 2200 Configurability Factory programmable, Software configurable
Regulated outputs (#) 3 TI functional safety category Functional Safety-Compliant Vin (Min) (V) 4 Vin (Max) (V) 36 Iout (Max) (A) 3.1 Rating Automotive 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 Processor name Generic Processor supplier Generic Shutdown current (ISD) (Typ) (uA) 3 Switching frequency (Typ) (kHz) 2200 Configurability Factory programmable, Software configurable
VQFNP (RWG) 40 36 mm² 6 x 6
  • 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
  • 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

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.

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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Technical documentation

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

Design & development

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

Evaluation board

TMDS273GPEVM — AM273x Arm-based MCU general purpose evaluation module

The AM273x evaluation module (EVM) is a standalone test, development and evaluation platform that lets developers evaluate AM273x functionality and develop prototypes for a variety of applications.

TMDS273GPEVM is equipped with a Sitara™ AM2732 microcontroller along with additional components (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS65313-EVM

TPS65313-Q1 high voltage Power Management IC evaluation module

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 (...)
User guide: PDF | HTML
Simulation model

TPS65313-Q1 Boost PSpice Transient model

SLDM021.ZIP (118 KB) - PSpice Model
Simulation model

TPS65313-Q1 Buck1 PSpice Transient Model

SLDM019.ZIP (107 KB) - PSpice Model
Simulation model

TPS65313-Q1 Buck2 PSpice Transient Model

SLDM020.ZIP (104 KB) - PSpice Model
Package Pins Download
VQFNP (RWG) 40 View options

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