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TPS564201

ACTIVE
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4.5 V to 17 V input, 4 A output, synchronous step-down converter in Eco-mode

Data sheet
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4.5 V to 17 V input, 4 A output, synchronous step-down converter in Eco-mode

TPS564201

ACTIVE
Data sheet Order now

Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.76 Vout (Max) (V) 7 Iout (Max) (A) 4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 600 Features Enable, Light Load Efficiency, Synchronous Rectification, Soft Start Fixed Control mode D-CAP2 Duty cycle (Max) (%) 80 Type Converter Operating temperature range (C) -40 to 125 Rating Catalog 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)

Features

  • TPS564201 4-A Converter Integrated 50-mΩ and 22-mΩ FETs
  • D-CAP2™ Mode Control with Fast Transient Response
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.76 V to 7 V
  • Pulse Skip Mode
  • 560-kHz Switching Frequency
  • Low Shutdown Current Less than 5 µA
  • 1.6% Feedback Voltage Accuracy (25ºC)
  • Startup from Pre-Biased Output Voltage
  • Cycle-by-Cycle Overcurrent Limit
  • Hiccup-mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft Start: 1.0 ms
  • Create a Custom Design Using the TPS564201 With the WEBENCH® Power Designer

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Description

The TPS564201 is a simple, easy-to-use, 4-A synchronous step-down converter in SOT-23 package.

The device is optimized to operate with minimum external component count 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.

The TPS564201 operates in pulse skip mode, maintaining high efficiency during light load operation. The TPS564201 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and specified from a –40°C to 125°C junction temperature.

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Same functionality and pinout but is not an equivalent to the compared device:
TPS563201 ACTIVE 4.5 V to 17 V input, 3 A output, synchronous step-down converter in Eco-mode This product offers lower current (3 A).
TPS565201 ACTIVE 4.5V to 17V, 5A, Synchronous Step-Down Voltage Regulator in SOT23 This product offers higher current (5 A).

Technical documentation

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Type Title Date
* Datasheet TPS564201 4.5-V to 17-V Input, 4-A Synchronous Step-Down Voltage Regulator in SOT-23 datasheet (Rev. B) May 25, 2017
Selection guides Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes SOT23 Package Thermal Consideration Mar. 02, 2018
Application notes Optimize DC-DC Layout for SOT Package to Improve Thermal and Voltage Spike Sep. 27, 2017
Application notes Understanding Eco-mode(TM) Operation Dec. 05, 2016
Application notes Space Optimized, “Clam Shell” Layout for Step-Down DC/DC Converters Oct. 31, 2016
Technical articles Keeping DC/DC solutions (super) simple for cost-sensitive applications Oct. 18, 2016
User guides TPS564201EVM-801 Regulator Evaluation Module User's Guide May 05, 2016
Application notes 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

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS564201 is a single, adaptive on-time, D-CAP2™ mode, synchronous buck converter requiring a very low external component count. The D-CAP2 control circuit is optimized for low-ESR output capacitors such as POSCAP, SP-CAP, or ceramic types and features fast transient response with no (...)

Features
  • Supports 5 V, 12 V and 15 V power bus
  • Synchronous Buck Converter with integrated FETs
  • DCAP2 Control
  • Internal Soft Start
  • 4A Output Current
View details

Design tools & simulation

SIMULATION MODELS Download
SLVMBK7A.ZIP (893 KB) - PSpice Model

Reference designs

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TIDA-01451 — This reference design’s functionality emulates the power distribution of Set Top Boxes. By using integrated load switches to control power rails, each rail can be turned on or off depending on the needs and wants of the user. Turning off rails that are not being used reduces power loss and (...)
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CAD/CAE symbols

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

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Training series

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Videos

Power Tips: Layout for a Buck Power Stage

This video shows a simplified schematic and PCB layout for a buck converter

Posted: 21-Jan-2016
Duration: 04:44

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