TPS54202

SOT-23-THN (DDC)

5 mm² 2.9 x 1.6

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.

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.

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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)	06 Apr 2021
	User guide	TPS54202 Step-Down Converter Evaluation Module User's Guide (Rev. A)	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
	Technical article	Minimize the impact of the MLCC shortage on your power application	29 Mar 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	12 Sep 2017
	Application note	800VA Pure Sine Wave Inverter's Reference Design (Rev. A)	01 Aug 2017
	Technical article	Powering the next generation of home appliances: How to get more from less	13 Oct 2016

Design & development

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

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

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Simulation model

TPS54202 Unencrypted PSpice Transient Model Package (Rev. C)

SLVMBJ5C.ZIP (102 KB) - PSpice Model

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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 (...)

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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 (...)

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TIDA-00946 — 5V 1A, Low EMI, 94% Efficiency DC/DC Module in Dual Layer TO-220 Form Factor Reference Design

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 (...)

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 (...)

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 (...)

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