TPS54202

ACTIVE

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

A newer version of this product is available

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This product continues to be available for existing customers. New designs should consider an alternate product.
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 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

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

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