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TPS54202

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

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Data sheet

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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.

TPS54202

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 26 Iq (typ) (µA) 40 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 26 Iq (typ) (µA) 40 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
User 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

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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
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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
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Simulation model

TPS54202 Unencrypted PSpice Transient Model Package (Rev. C)

SLVMBJ5C.ZIP (102 KB) - PSpice Model
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Reference designs

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This reference design illustrates a motor inverter with MSPM0G, an Arm® Cortex®-M0+ core microcontroller. The design not only supports a sensorless Field Oriented Control (FOC) algorithm with 1-3 shunt resistors, but also a sensored motor driving algorithm with a Hall or Quadrature Encoder (...)
Design guide: PDF
Reference designs

TIDA-010265 — 750W motor inverter with C2000™ MCU and MSPM0 reference design

This reference design is a 750W motor drive for a washing machine or similar equipment, which illustrates a method to implement sensorless field oriented control (FOC) for a three-phase permanent magnet synchronous motor (PMSM) with a flux, angle, speed and torque observer (FAST) software encoder (...)
Design guide: PDF
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This reference design demonstrates a 10.5-mm x 14.5-mm, 94% efficiency, low electromagnetic interference (EMI) DC/DC module with the TPS54202, replacing a low-dropout regulator (LDO) in major home appliance applications. High efficiency eliminates the need of heat sink for a smaller and (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00947 — 3.3V 1A, Low EMI, 92% Efficiency DC/DC Module in Dual Layer TO-220 Form Factor Reference Design

This reference design demonstrates a 10.5 mm x1 4.5 mm, 92% efficiency, low-electromagnetic interference (EMI) DC/DC module with the TPS54202, replacing a low dropout regulator (LDO) in major home appliance applications. The high efficiency eliminates the need of heat sink for a design that (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00948 — 5V 1A, Low EMI, 94% Efficiency DC/DC Module in Single Layer TO-247 Form Factor Reference Design

This reference design demonstrates a 15 mm x 20 mm, 94% efficiency, low electromagnetic interference (EMI) DC/DC module with the TPS54202, replacing low dropout regulator (LDO) in major home appliance applications. High efficiency eliminates the need of heat sink for a smaller design and and (...)
Design guide: PDF
Schematic: PDF
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This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
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Schematic: PDF
Reference designs

TIDA-00949 — 3.3V 1A, Low EMI, 92% Efficiency DC/DC Module in Single Layer TO-247 Form Factor Reference Design

This reference design demonstrates a 15 mm x 20 mm, 92% efficiency, low electromagnetic interference (EMI) DC/DC module with TPS54202, replacing low dropout regulator (LDO) in major home appliance applications. The high efficiency eliminates the need of heat sink for a smaller and cheaper (...)
Design guide: PDF
Schematic: PDF
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Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DDC) 6 Ultra Librarian
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