17V Input, 2A Synchronous Step-Down Regulator in SOT-23 With Power-good and Soft-start


Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.76 Vout (Max) (V) 5.5 Iout (Max) (A) 2 Iq (Typ) (uA) 650 Switching frequency (Min) (kHz) 650 Switching frequency (Max) (kHz) 650 Features Enable, Light Load Efficiency, Power Good, Synchronous Rectification, Soft Start Adjustable Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOT-23-THN (DDF) 8 8 mm² 2.9 x 2.8 open-in-new Find other Buck converters (integrated switch)


  • TPS562219A: 2-A Converter With Integrated 133-mΩ and 80-mΩ FETs
  • TPS563219A: 3-A Converter With Integrated 68-mΩ and 39-mΩ FETs
  • D-CAP2™ Mode Control with 650-kHz Switching Frequency
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.76 V to 7 V
  • 650-kHz Switching Frequency
  • Low Shutdown Current Less than 10 µA
  • 1% Feedback Voltage Accuracy (25°C)
  • Startup from Pre-Biased Output Voltage
  • Cycle By Cycle Overcurrent Limit
  • Hiccup-mode Under Voltage Protection
  • Non-latch OVP, UVLO and TSD Protections
  • Adjustable Soft Start
  • Power Good Output
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The TPS562219A and TPS563219A are simple, easy-to-use, 2-A, 3-A synchronous step-down converters in 8 pin SOT-23 package.

The devices are optimized to operate with minimum external component counts and optimized to achieve low standby current.

These switch mode power supply (SMPS) devices employ D-CAP2™ mode control providing a fast transient response and supporting both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

The devices always operate in continuous conduction mode, which reduces the output ripple voltage in light load compared to discontinuous conduction mode . The TPS562219A and TPS563219A are available in a 8-pin 1.6 × 2.9 (mm) SOT (DDF) package, and specified from –40°C to 85°C of ambient temperature.

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Technical documentation

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Type Title Date
* Data sheet TPS56x219A 4.5-V to 17-V Input, 2-A, 3-A Synchronous Step-Down Voltage Regulator in 8 Pin SOT-23 datasheet Nov. 16, 2016
Technical article Understanding and managing buck regulator output ripple Jun. 18, 2020
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note SOT23 Package Thermal Consideration Mar. 02, 2018
Application note Optimize DC-DC Layout for SOT Package to Improve Thermal and Voltage Spike Sep. 27, 2017
User guide TPS562219AEVM-663 2-A, Regulator Evaluation Module Nov. 18, 2016

Design & development

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Hardware development

document-generic User guide
The TPS562219A is a simple, easy-to-use, wide-Vin, 2-A synchronous step-down converter.  The TPS562219A employs D-CAP2™ mode control that provides a fast transient response and supports both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low (...)
  • Supports  5 V, 12 V and 15 V  power bus
  • Synchronous Buck Converter with integrated FETs
  • DCAP2 Control
  • Internal Soft Start
  • 2 A Output Current

Design tools & simulation

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  • Leverages Cadence PSpice Technology
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  • Dynamic updates ensure you have access to most current device models
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CAD/CAE symbols

Package Pins Download
SOT-23-THIN (DDF) 8 View options

Ordering & quality

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