Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.76 Vout (Max) (V) 7 Iout (Max) (A) 3 Iq (Typ) (uA) 650 Switching frequency (Min) (kHz) 650 Switching frequency (Max) (kHz) 650 Features Enable, Synchronous Rectification, 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 5 mm² 2.9 x 1.6 open-in-new Find other Buck converters (integrated switch)


  • TPS562209 - 2A converter with integrated 122-mΩ and 72-mΩ FETs
  • TPS563209 - 3A converter with integrated 68-mΩ and 39-mΩ FETs
  • D-CAP2™ Mode Control for Fast Transient Response
  • 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 10µA
  • 1% Feedback Voltage Accuracy (25°C)
  • Startup from Pre-Biased Output Voltage
  • Cycle By Cycle Over-current Limit
  • Hiccup-mode Under Voltage Protection
  • Non-latch OVP, UVLO and TSD Protections
  • Fixed Soft Start : 1.0ms
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The TPS562209 and TPS563209 are simple, easy-to-use, 2-A and 3-A synchronous step-down converters in 6 pin SOT-23 package.

The devices are optimized to operate with minimum external component counts and also 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.

TPS562209 and TPS563209 always operate in continuous conduction mode, which reduces the output ripple voltage in light load compared to discontinous conduction mode. TPS56x209 are available in a 6-pin 1.6 × 2.9(mm) SOT (DDC) package, and specified from –40°C to 150°C of junction temperature.

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Similar products you might be interested in
open-in-new Compare products
Same functionality and pinout but is not an equivalent to the compared device:
TPS562209 ACTIVE 17 V Input, 2A Synchronous Step-Down Regulator in SOT-23 Pin-to-pin compatible lower current product (2 A).
TPS563249 ACTIVE 17-V, 3-A, constant 1.4-MHz synchronous step-down voltage regulator Pin-to-pin compatible with higher switching frequency, lower output to 0.6 V, and higher enable precision.
TPS564208 ACTIVE 4.5 V to 17 V input, 4 A output, synchronous step-down converter in FCCM mode Pin-to-pin compatible higher current product (4 A).
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TPS563219A ACTIVE 17V Input, 3A Synchronous Step-Down Regulator in SOT-23 With Power-good and Soft-start This product has soft-start and power-good operations.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS56x209, 4.5V to 17 V Input, 2-A, 3-A Synchronous Step-Down Voltage Regulator in 6 pin SOT-23 datasheet (Rev. A) Nov. 15, 2016
Technical articles Understanding and managing buck regulator output ripple Jun. 18, 2020
Technical articles 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
Application note Space Optimized, “Clam Shell” Layout for Step-Down DC/DC Converters Oct. 31, 2016
User guide TPS563209EVM-652 3-A, SWIFT™ Regulator Evaluation Module Sep. 09, 2014
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- Jan. 02, 2013

Design & development

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

Hardware development


The TPS563209 is a simple, easy-to-use, wide-Vin, 3A synchronous step-down converter. The TPS563209 employs D-CAP2™ mode control that provides a fast transient response and support both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic (...)


  • D-CAP2™ Mode Control 650-kHz Switching
  • Wide Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.76 V to 7 V
  • Integrated 68-mΩ (High Side) and 39-mΩ (Low Side) FETs
  • Forced CCM - Pre-Biased Soft Start
  • Cycle-By-Cycle Hiccup Over-current Limit
  • OVP, UVLO and TSD Protections (non-latch)
  • Fixed Soft Start: 1 (...)

Design tools & simulation

SLVMAF0A.ZIP (106 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Low-Cost Point-of-Load Regulator Reference Design
PMP30089 This design is a small and cost-effective point-of-load (PoL) regulator providing 2.5 V at 2.5 A from an input voltage of 12 V.
document-generic Schematic

CAD/CAE symbols

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

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
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  • Qualification summary
  • Ongoing reliability monitoring

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