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TPS56339

ACTIVE

4.5-V to 24-V input, 3-A output synchronous buck converter

Product details

Vin (min) (V) 4.5 Vin (max) (V) 24 Vout (min) (V) 0.8 Vout (max) (V) 16 Iout (max) (A) 3 Iq (typ) (mA) 0.093 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Soft Start Fixed, Synchronous Rectification Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode ACM/AECM Duty cycle (max) (%) 95 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 24 Vout (min) (V) 0.8 Vout (max) (V) 16 Iout (max) (A) 3 Iq (typ) (mA) 0.093 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Soft Start Fixed, Synchronous Rectification Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode ACM/AECM Duty cycle (max) (%) 95 Type Converter
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Input voltage range: 4.5 V to 24 V
  • Output voltage range: 0.8 V to 16 V
  • 3-A maximum continuous output current
  • Fixed 500-kHz switching frequency
  • Support up to 97% duty cycle
  • Integrated 70-mΩ and 35-mΩ MOSFETs
  • Typical 3-µA shutdown current
  • Typical 98-µA quiescent current
  • Internal 5-ms soft-start
  • Internal loop compensation for ease use
  • Cycle-by-cycle current limit for both high-side and low-side MOSFETs
  • Non-latched UVP, UVLO and TSD protections
  • SOT-23 (6) package
  • Create a custom design using TPS56339 with the WEBENCH® Power Designer
  • Input voltage range: 4.5 V to 24 V
  • Output voltage range: 0.8 V to 16 V
  • 3-A maximum continuous output current
  • Fixed 500-kHz switching frequency
  • Support up to 97% duty cycle
  • Integrated 70-mΩ and 35-mΩ MOSFETs
  • Typical 3-µA shutdown current
  • Typical 98-µA quiescent current
  • Internal 5-ms soft-start
  • Internal loop compensation for ease use
  • Cycle-by-cycle current limit for both high-side and low-side MOSFETs
  • Non-latched UVP, UVLO and TSD protections
  • SOT-23 (6) package
  • Create a custom design using TPS56339 with the WEBENCH® Power Designer

The TPS56339 is a 4.5-V to 24-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching MOSFETs, internal loop compensation and 5-ms internal soft-start to reduce component count. By employing the SOT-23 (6) package, the device achieves the high power density and offers small footprint on PCB.

The TPS56339 employs Advanced Emulated Current Mode (AECM) control that can get fast transient response with fixed frequency. The internal adaptive loop adjustment eliminates the need for external compensation over a wide voltage output range.

Cycle-by-cycle current limit on the high-side protects the device in current overload conditions and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered under undervoltage and thermal shutdown protections.

The TPS56339 is a 4.5-V to 24-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching MOSFETs, internal loop compensation and 5-ms internal soft-start to reduce component count. By employing the SOT-23 (6) package, the device achieves the high power density and offers small footprint on PCB.

The TPS56339 employs Advanced Emulated Current Mode (AECM) control that can get fast transient response with fixed frequency. The internal adaptive loop adjustment eliminates the need for external compensation over a wide voltage output range.

Cycle-by-cycle current limit on the high-side protects the device in current overload conditions and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered under undervoltage and thermal shutdown protections.

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Technical documentation

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Type Title Date
* Data sheet TPS56339 4.5-V to 24-V Input, 3-A Output Synchronous Buck Converter datasheet (Rev. A) PDF | HTML 15 May 2019
White paper Achieving Fast Load-Transient Response and Low EMI with the AECM DC/DC Control (Rev. A) PDF | HTML 24 Oct 2022
EVM User's guide TPS56339 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML 06 Jul 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021

Design & development

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

Evaluation board

TPS56339EVM — 3-A regulator evaluation module

The TPS56339 evaluation module (EVM) is used to evaluate the TPS56339.The TPS56339 is an Advanced Emulated Current Mode (AECM) synchronous step-down DC/DC converter, being able to deliver 3-A continuous output current, providing an advance Eco-mode™ to maintain high light load (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS56339 PSPICE Transient Model

SLVMD41.ZIP (106 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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

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