Home Power management DC/DC switching regulators DC/DC converters
Home
Power management
DC/DC switching regulators
DC/DC converters

TPS62090-Q1

ACTIVE

Automotive: 3A, 2.5 to 6V input, up to 97% efficiency, 3x3 QFN, Step-Down Converter

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS62813-Q1 ACTIVE Automotive 2.75-V to 6-V, 3-A step-down converter with fixed Fsw and SYNC in 2x3mm wettable-flanks New generation with smaller solution size and higher efficiency

TPS62090-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 6 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Power good, Synchronous Rectification, Tracking Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 Duty cycle (max) (%) 100
Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 6 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Light load efficiency, Output discharge, Power good, Synchronous Rectification, Tracking Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 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 junction operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C6
  • 2.5V to 6V input voltage range
  • DCS-Control
  • 95% converter efficiency
  • Power save mode
  • 20µA operating quiescent current
  • 100% duty cycle for lowest dropout
  • 2.8MHz and 1.4MHz typical switching frequency
  • 0.8V to VIN adjustable output voltage
  • Output discharge function
  • Adjustable soft start
  • Hiccup short-circuit protection
  • Output voltage tracking
  • Wide output capacitance selection
  • Available in 3mm × 3mm, 16-pin QFN package
  • New product available: TPS62813-Q1, 6V step-down converter in 2mm × 3mm QFN package with wettable flanks
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C junction operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C6
  • 2.5V to 6V input voltage range
  • DCS-Control
  • 95% converter efficiency
  • Power save mode
  • 20µA operating quiescent current
  • 100% duty cycle for lowest dropout
  • 2.8MHz and 1.4MHz typical switching frequency
  • 0.8V to VIN adjustable output voltage
  • Output discharge function
  • Adjustable soft start
  • Hiccup short-circuit protection
  • Output voltage tracking
  • Wide output capacitance selection
  • Available in 3mm × 3mm, 16-pin QFN package
  • New product available: TPS62813-Q1, 6V step-down converter in 2mm × 3mm QFN package with wettable flanks

The TPS62090-Q1 devices are a family of high-frequency, synchronous, step-down converters optimized for small design size, high efficiency, and are designed for battery-powered applications. To maximize efficiency, the converters operate in pulse width modulation (PWM) mode with a nominal switching frequency of 2.8MHz to 1.4MHz and automatically enter power save mode operation at light load currents. When used in distributed power supplies and point-of-load regulation, the devices allow voltage tracking to other voltage rails and tolerate output capacitors ranging from 10µF up to 150µF and beyond. Using the DCS-Control topology, the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the SS pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and power good pins. In power save mode, the devices operate at typically 20µA quiescent current. Power save mode is entered automatically and seamlessly maintaining high efficiency over the entire load current range.

The TPS62090-Q1 devices are a family of high-frequency, synchronous, step-down converters optimized for small design size, high efficiency, and are designed for battery-powered applications. To maximize efficiency, the converters operate in pulse width modulation (PWM) mode with a nominal switching frequency of 2.8MHz to 1.4MHz and automatically enter power save mode operation at light load currents. When used in distributed power supplies and point-of-load regulation, the devices allow voltage tracking to other voltage rails and tolerate output capacitors ranging from 10µF up to 150µF and beyond. Using the DCS-Control topology, the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the SS pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and power good pins. In power save mode, the devices operate at typically 20µA quiescent current. Power save mode is entered automatically and seamlessly maintaining high efficiency over the entire load current range.
filter Find other DC/DC converters
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 15
Top documentation Type Title Format options Date
* Data sheet TPS62090-Q1 3A, High-Efficiency, Automotive, Synchronous Step-Down Converter With DCS-Control datasheet (Rev. D) PDF | HTML 06 Jun 2025
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Functional safety information TPS62090-Q1 Pin FMA PDF | HTML 08 Aug 2022
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
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
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 09 Aug 2012
Application note Optimizing the TPS62090 Output Filter 11 May 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011

Design & development

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

Simulation model

TPS62090 PSpice Unencrypted Transient Model (Rev. A)

SLVM563A.ZIP (24 KB) - PSpice Model
Download
Calculation tool

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
Supported products & hardware

Supported products & hardware
Download
Reference designs

PMP22030 — Efficient, low-heat, CISPR 25 class 5-compliant power reference design for infotainment display

This reference design is focused on the power tree for an automotive infotainment display unit covering various power supply rails including two off-battery converters providing 5.0-V and 3.3-V, and intermediary system rails of 1.8-V and 1.1-V. The test results demonstrate high efficiency, low (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00675 — Power Reduction Using Dynamic Switching Reference Design

The TIDA-00675 shows the power reduction benefits of dynamically switching a load on/off using a load switch. The design guide shows how frequency of switching, duty cycle, and the use of a discharge resistor can have an impact on power consumption.
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RGT) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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

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

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos