Home Power management DC/DC switching regulators Step-down (buck) regulators Buck converters (integrated switch)

TPS62901

ACTIVE

3-V to 17-V, 1-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package

Product details

Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.4 Vout (max) (V) 5.5 Iout (max) (A) 1 Iq (typ) (mA) 0.004 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2500 Features Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, Tracking, UVLO adjustable Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode DCS-Control Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.4 Vout (max) (V) 5.5 Iout (max) (A) 1 Iq (typ) (mA) 0.004 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2500 Features Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, Tracking, UVLO adjustable Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode DCS-Control Duty cycle (max) (%) 100 Type Converter
VQFN-HR (RPJ) 9 3 mm² 2 x 1.5
  • High efficiency for wide duty cycle and load range
    • IQ: 4µA typical
    • Selectable switching frequency of 2.5MHz and 1.0MHz
    • RDS(ON): 62mΩ high side, 22mΩ low side
    • Automatic efficiency enhancement (AEE)
  • Small 1.5mm × 2.0mm VQFN package with 0.5mm pitch
  • Up to 1A continuous output current
  • ±0.9% feedback voltage accuracy across temp (–40°C to 150°C)
  • Configurable output voltage options:
    • VFB external divider: 0.6V to 5.5V
    • VSET internal divider: 16 options between 0.4V and 5.5V
  • DCS-Contro topology with 100% mode
  • Highly flexible and easy to use
    • Optimized pinout for single-layer routing
    • Precise enable input
    • Forced PWM or auto power save mode
    • Power-good output
    • Selectable active output discharge
    • Adjustable soft start and tracking
  • No external bootstrap capacitor required
  • Create a custom design using the TPS62901 using the WEBENCH Power Designer
  • High efficiency for wide duty cycle and load range
    • IQ: 4µA typical
    • Selectable switching frequency of 2.5MHz and 1.0MHz
    • RDS(ON): 62mΩ high side, 22mΩ low side
    • Automatic efficiency enhancement (AEE)
  • Small 1.5mm × 2.0mm VQFN package with 0.5mm pitch
  • Up to 1A continuous output current
  • ±0.9% feedback voltage accuracy across temp (–40°C to 150°C)
  • Configurable output voltage options:
    • VFB external divider: 0.6V to 5.5V
    • VSET internal divider: 16 options between 0.4V and 5.5V
  • DCS-Contro topology with 100% mode
  • Highly flexible and easy to use
    • Optimized pinout for single-layer routing
    • Precise enable input
    • Forced PWM or auto power save mode
    • Power-good output
    • Selectable active output discharge
    • Adjustable soft start and tracking
  • No external bootstrap capacitor required
  • Create a custom design using the TPS62901 using the WEBENCH Power Designer

The TPS62901 is a highly-efficient, small, and flexible synchronous step-down DC-DC converter that is easy to use. A selectable switching frequency of 2.5MHz or 1.0MHz allows the use of small inductors and provides fast transient response. The device supports high VOUT accuracy of ±1% with the DCS-Control topology. The wide input voltage range of 3V to 17V supports a variety of nominal inputs like 12V supply rails, single-cell or multi-cell Li-Ion, and 5V or 3.3V rails.

The TPS62901 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4µA. AEE, if enabled, provides high efficiency across VIN, VOUT, and load current. The device includes a MODE/S-CONF input to set the internal and external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.

The device is available in small 9-pin VQFN package measuring 1.50mm × 2.00mm with 0.5mm pitch.

The TPS62901 is a highly-efficient, small, and flexible synchronous step-down DC-DC converter that is easy to use. A selectable switching frequency of 2.5MHz or 1.0MHz allows the use of small inductors and provides fast transient response. The device supports high VOUT accuracy of ±1% with the DCS-Control topology. The wide input voltage range of 3V to 17V supports a variety of nominal inputs like 12V supply rails, single-cell or multi-cell Li-Ion, and 5V or 3.3V rails.

The TPS62901 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4µA. AEE, if enabled, provides high efficiency across VIN, VOUT, and load current. The device includes a MODE/S-CONF input to set the internal and external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.

The device is available in small 9-pin VQFN package measuring 1.50mm × 2.00mm with 0.5mm pitch.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
TPS62902 ACTIVE 3-V to 17-V, 2-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package Pin-to-pin 2-A output current
TPS62903 ACTIVE 3-V to 17-V, 3-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package Pin-to-pin 3-A output current

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 6
Type Title Date
* Data sheet TPS62901 , 3V to 17V, High Efficiency and Low IQ Buck Converter in 1.5mm × 2mm QFN Package datasheet (Rev. A) PDF | HTML 23 Jan 2024
Application note How to Best Use TPS62903 for a Given Application Requirement PDF | HTML 13 Aug 2021
Application note Comparison of TPS6290x vs. TPS621x0 PDF | HTML 23 Jul 2021
Application brief Multi-Function Pins for Easy Designing PDF | HTML 07 Jul 2021
EVM User's guide TPS6290x Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 07 May 2021
Certificate TPS62901EVM-069 EU RoHS Declaration of Conformity (DoC) 15 Dec 2020

Design & development

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

Evaluation board

TPS62901EVM-069 — 17-VIN, 1-A, low IQ buck converter in 1.5-mm x 2-mm QFN package evaluation module

The TPS62901EVM-069 (BSR069-001) evaluation module (EVM) facilitates the evaluation of the TPS62901 1-A buck converter in small 1.5-mm by 2-mm QFN package. The EVM outputs a 3.3-V output voltage from input voltages up to 17 V. The TPS62901 is a high efficiency, low IQ buck converter for use in a (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS62901 PSpice Transient Model

SLVMDO8.ZIP (243 KB) - PSpice Model
Gerber file

BSR069A Gerbers

SNVC242.ZIP (394 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN-HR (RPJ) 9 View options

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

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