Automotive 3V to 17V, 1A Buck Converter in 3x3 QFN package

TPS62152-Q1 is not recommended for new designs
Although this product continues to be in production to support previous designs, we don't recommend it for new designs. Consider one of these alternates:
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Drop-in replacement with upgraded functionality to the compared device
TPS62152A-Q1 ACTIVE 3-V to 17-V, 1-A step-down converter with DCS-Control™ Pin compatible with TPS62152-Q1 and includes updated power-good pin.

Product details

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Type Converter Iout (max) (A) 1 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 1250 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification, Tracking, Voltage Margining Control mode DCS-Control, Voltage mode Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Type Converter Iout (max) (A) 1 Vin (min) (V) 3 Vin (max) (V) 17 Switching frequency (min) (kHz) 1250 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification, Tracking, Voltage Margining Control mode DCS-Control, Voltage mode Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
VQFN (RGT) 16 9 mm² 3 x 3
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • DCS-Control Topology
  • Input Voltage Range: 4 V to 17 V
  • Up to 1-A Output Current
  • Fixed Output Voltage: 3.3 V
  • Programmable Soft Start and Tracking
  • Seamless Power-Save Mode Transition
  • Quiescent Current of 17 µA (Typ.)
  • Selectable Operating Frequency
  • Power-Good Output
  • 100% Duty-Cycle Mode
  • Short-Circuit Protection
  • Overtemperature Protection
  • Available in a 3-mm × 3-mm, VQFN-16 Package

All trademarks are the property of their respective owners.

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • DCS-Control Topology
  • Input Voltage Range: 4 V to 17 V
  • Up to 1-A Output Current
  • Fixed Output Voltage: 3.3 V
  • Programmable Soft Start and Tracking
  • Seamless Power-Save Mode Transition
  • Quiescent Current of 17 µA (Typ.)
  • Selectable Operating Frequency
  • Power-Good Output
  • 100% Duty-Cycle Mode
  • Short-Circuit Protection
  • Overtemperature Protection
  • Available in a 3-mm × 3-mm, VQFN-16 Package

All trademarks are the property of their respective owners.

The TPS62152-Q1 device is an easy-to-use
synchronous step-down dc-dc converter optimized for applications with high power density and features a fixed 3.3-V output with a current capability of up to
1 A. A high switching frequency of 2.5 MHz (typical) allows the use of small inductors and provides fast transient response as well as high output-voltage accuracy by use of the DCS-Control topology.

With a wide operating input voltage range of 4 V to 17 V, the device is ideally suited for systems powered from either a Li-Ion or other batteries as well as from 12-V intermediate power rails.

The soft-start pin controls the output voltage start-up ramp, which allows operation either as a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and open-drain power-good pins.

In power-save mode, the device draws quiescent current of about 17 μA from VIN. Power-save mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. Entering shutdown mode turns the device off, and shutdown current consumption is less than 2 μA.

The device package is a 16-pin VQFN measuring
3-mm × 3-mm (RGT) and has an exposed thermal pad for better thermal performance.

For all available packages, see the orderable addendum at the end of the datasheet.

The TPS62152-Q1 device is an easy-to-use
synchronous step-down dc-dc converter optimized for applications with high power density and features a fixed 3.3-V output with a current capability of up to
1 A. A high switching frequency of 2.5 MHz (typical) allows the use of small inductors and provides fast transient response as well as high output-voltage accuracy by use of the DCS-Control topology.

With a wide operating input voltage range of 4 V to 17 V, the device is ideally suited for systems powered from either a Li-Ion or other batteries as well as from 12-V intermediate power rails.

The soft-start pin controls the output voltage start-up ramp, which allows operation either as a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and open-drain power-good pins.

In power-save mode, the device draws quiescent current of about 17 μA from VIN. Power-save mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. Entering shutdown mode turns the device off, and shutdown current consumption is less than 2 μA.

The device package is a 16-pin VQFN measuring
3-mm × 3-mm (RGT) and has an exposed thermal pad for better thermal performance.

For all available packages, see the orderable addendum at the end of the datasheet.

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Technical documentation

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Type Title Date
* Data sheet TPS62152-Q1 Automotive Wide Input, Fixed 3-V Output Voltage, 1-A Step-Down Converter in 3 × 3-mm QFN Package datasheet (Rev. B) PDF | HTML 29 Sep 2015
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30 Oct 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25 Jul 2013

Design & development

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

Simulation model

TPS62152 PSpice Unencrypted Transient Model (Rev. B)

SLVM446B.ZIP (34 KB) - PSpice Model
Simulation model

TPS62152 TINA-TI Transient Reference Design

SLVMA36.ZIP (116 KB) - TINA-TI Reference Design
Simulation model

TPS62152 TINA-TI Transient Spice Model

SLVMA37.ZIP (54 KB) - TINA-TI Spice Model
Reference designs

TIDA-00281 — Automotive 48-V, 1-kW Motor Drive Reference Design

TIDA-00281 is a 3-phase brushless DC (BLDC) motor drive designed to operate in 48-V automotive applications. The board is designed to drive motors in the 1-kW range and can handle currents up to 30 A. The design includes analog circuits working in conjunction with a C2000 LaunchPad to spin a (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RGT) 16 Ultra Librarian

Ordering & quality

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