TPS54202H

ACTIVE

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

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Product details

Parameters

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 Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Synchronous Rectification, UVLO Adjustable, Soft Start Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOT-23-THN (DDC) 6 SOT-23-THN (DDC) 6 5 mm² 2.9 x 1.6 open-in-new Find other Buck converters (integrated switch)

Features

  • 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
  • Advanced Eco-mode™ Pulse Skip
  • Peak Current Mode Control
  • Internal Loop compensation
  • Overcurrent Protection for Both MOSFETs with
    Hiccup Mode Protection
  • Over Voltage Protection
  • Thermal Shutdown
  • SOT-23 (6) Package
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Description

The TPS54202H 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 TPS54202H 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.

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.

For all available packages, see the orderable addendum at the end of the data sheet.
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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.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS54202HEVM-716 facilitates evaluation of the TPS54202H synchronous step-down voltage converter. The TPS54202H is a 28-V, 2-A, ultra-low quiescent supply current (IQ), synchronous monolithic buck converter with integrated MOSFETs. The TPS54202H enables small designs by integrating the MOSFETs (...)

Features
  • Two 148mΩ/78mΩ MOSFETs for 2A Continuous Output Current
  • 0.6 V Internal Voltage Reference
  • Pulse Skipping Boosts Efficiency at Light Loads
  • Monotonic Start-Up into Pre-biased Outputs
  • Ultra Low Iq 40μA

Design tools & simulation

SIMULATION MODELS Download
SLVMBJ7A.ZIP (94 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
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CAD/CAE symbols

Package Pins Download
SOT-23-THIN (DDC) 6 View options

Ordering & quality

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