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TPS54202

ACTIVE

4.5V to 28V Input, 2A Output, EMI Friendly Synchronous Step-Down Converter

A newer version of this product is available

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
TPS542021 PREVIEW 4.5V to 30V input, 2A, 500kHz synchronous buck converter Newer Alternate
Same functionality with different pin-out to the compared device
TPS62932 ACTIVE 3.8-V to 30-V input, 2-A, 200-kHz to 2.2-MHz, low-IQ synchronous buck converter in SOT-583 package Wider Vin range, adjustable Fsw in smaller package.

Product details

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 26 Vout (min) (V) 0.6 EMI features Spread Spectrum Features Enable, Light-load efficiency, Prebias startup, Soft-start fixed, Spread Spectrum, Synchronous rectification, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 26 Vout (min) (V) 0.6 EMI features Spread Spectrum Features Enable, Light-load efficiency, Prebias startup, Soft-start fixed, Spread Spectrum, Synchronous rectification, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004 Duty cycle (max) (%) 100
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • 4.5-V to 28-V wide input voltage range
  • Integrated 148-mΩ and 78-mΩ MOSFETs for 2-A, continuous output current
  • Low 2-µA shutdown, 45-µA quiescent current
  • Internal 5-mS soft start
  • Fixed 500-kHz switching frequency
  • Frequency spread spectrum to reduce EMI
  • Advanced Eco-mode™ pulse skip
  • Peak current mode control
  • Internal loop compensation
  • Overcurrent protection for both MOSFETs with hiccup mode protection
  • Overvoltage protection
  • Thermal shutdown
  • SOT-23 (6) package
  • 4.5-V to 28-V wide input voltage range
  • Integrated 148-mΩ and 78-mΩ MOSFETs for 2-A, continuous output current
  • Low 2-µA shutdown, 45-µA quiescent current
  • Internal 5-mS soft start
  • Fixed 500-kHz switching frequency
  • Frequency spread spectrum to reduce EMI
  • Advanced Eco-mode™ pulse skip
  • Peak current mode control
  • Internal loop compensation
  • Overcurrent protection for both MOSFETs with hiccup mode protection
  • Overvoltage protection
  • Thermal shutdown
  • SOT-23 (6) package

The TPS54202 is a 4.5-V to 28-V input voltage range, 2-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation and 5-ms internal soft start to reduce component count.

By integrating the MOSFETs and employing the SOT-23 package, the TPS54202 achieves the high power density and offers a small footprint on the PCB.

Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.

The frequency spread spectrum operation is introduced for EMI reduction.

Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.

The TPS54202 is a 4.5-V to 28-V input voltage range, 2-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation and 5-ms internal soft start to reduce component count.

By integrating the MOSFETs and employing the SOT-23 package, the TPS54202 achieves the high power density and offers a small footprint on the PCB.

Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.

The frequency spread spectrum operation is introduced for EMI reduction.

Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.

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Technical documentation

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Type Title Date
* Data sheet TPS54202 4.5-V to 28-V Input, 2-A Output, EMI Friendly Synchronous Step Down Converter datasheet (Rev. B) PDF | HTML 06 Apr 2021
Application note 3-A DC/DC Buck Converter Selection Guide of Mid-Range VIN PDF | HTML 03 Aug 2023
EVM User's guide TPS54202 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 29 Oct 2021
Application note L1 and L2 EV Charger Electric Vehicle Service Equipment Design Considerations (Rev. B) 09 Jun 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Application note Low Dropout Operation in a Buck Converter (Rev. A) 01 Apr 2019
Application note Using the TPS54x02 to Create an Inverting Power Supply 15 Jun 2018
Application note SOT23 Package Thermal Consideration 02 Mar 2018
Technical article Use an ULQ buck regulator for energy-efficient power products PDF | HTML 12 Sep 2017
Application note 800VA Pure Sine Wave Inverter's Reference Design (Rev. A) PDF | HTML 01 Aug 2017
Technical article Powering the next generation of home appliances: How to get more from less PDF | HTML 13 Oct 2016

Design & development

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

Evaluation board

TIEVM-MTR-HVINV — C2000™ MCU evaluation module for high-voltage three-phase inverter motor control

The TIEVM-MTR-HVINV is a 750W development board for high-voltage motor drive applications. This EVM implements sensorless FOC control for a three-phase permanent-magnet synchronous motor (PMSM) with the InstaSPIN-FOC FAST and eSMO sensorless observers. The modular design allows for plug-and-play (...)

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

TPS54202EVM-716 — TPS54202 2A Output, Synchronous Step-Down Converter Evaluation Module

The TPS54202EVM-716 is a fully assembled and tested circuit for evaluating the TPS54202 synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 28-V input voltage to a regulated 5-V output voltage that delivers up to 2 A. The solution offers a ultra-low quiescent supply current (IQ) (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS54202 Unencrypted PSpice Transient Model Package (Rev. C)

SLVMBJ5C.ZIP (102 KB) - PSpice Model

Many TI reference designs include the TPS54202

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Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DDC) 6 Ultra Librarian

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