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

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A newer version of this product is available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
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

Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.6 Vout (max) (V) 26 Iout (max) (A) 2 Iq (typ) (mA) 0.04 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 EMI features Spread Spectrum Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.6 Vout (max) (V) 26 Iout (max) (A) 2 Iq (typ) (mA) 0.04 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 EMI features Spread Spectrum Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 100 Type Converter
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.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TPS54302 ACTIVE 4.5-V to 28-V Input, 3-A Output, EMI Friendly Synchronous Step-Down Converter Higher current equivalent part.
Similar functionality to the compared device
TPSM84203 ACTIVE 1.5A, 28V Input, 3.3V Output, TO-220 Power Module Simplify your design with an integrated-inductor power module.
TPSM84205 ACTIVE 1.5A, 28V Input, 5V Output TO-220 Power Module Simplify your design with an integrated-inductor power module.
TPSM84212 ACTIVE 1.5A, 28V Input, 12V Output, TO-220 Power Module Simplify your design with an integrated-inductor power module.

Technical documentation

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

TPS54202 Unencrypted PSpice Transient Model Package (Rev. C)

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

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 (...)
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
Reference designs

TIDA-00776 — Universal 350W CCM PFC with >98% Efficiency and Small Form Factor Reference Design

The TIDA-00776 design  is a 350-W cost competitive power factor regulator converter designed for refrigerators and other appliances applications. This reference design is a Continuous-Conduction-Mode (CCM) boost converter that uses TI’s UCC28180 PFC controller and has all the necessary (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010250 — 1-kW brushless DC motor inverter reference design

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

PMP30825 — 150-VDC - 430-VDC input, multiple output valley-switching flyback reference design

This 10-W non-isolated flyback reference design uses the UCC28742 controller to generate four outputs (5 V at 150 mA, 12 V at 690 mA, 15 V at 80 mA, 18 V at 20 mA). The controller provides constant-voltage and constant-current regulation. Transistors are used in place of an optocoupler feedback (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-010055 — Non-isolated power architecture with diagnostics reference design for protection relay modules

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 (...)
Design guide: PDF
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
Reference designs

TIDA-01586 — IR LED Illumination and ICR Control Reference Design for IP Network Cameras With Day/Night Vision

This reference design showcases an Infrared LED illumination sub-system for Internet Protocol (IP) network cameras with day and night vision. The system features a cut filter control, LED dimming, ambient light measuring and ballasting for current of each IR LED string. Ballasting is an (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOT-23-THN (DDC) 6 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