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TPS56339

ACTIVE

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

Product details

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 16 Vout (min) (V) 0.8 Features Enable, Light-load efficiency, Soft-start fixed, Synchronous rectification Control mode ACM/AECM Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000093 Duty cycle (max) (%) 95
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 16 Vout (min) (V) 0.8 Features Enable, Light-load efficiency, Soft-start fixed, Synchronous rectification Control mode ACM/AECM Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000093 Duty cycle (max) (%) 95
SOT-23-THN (DDC) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • 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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* Data sheet TPS56339 4.5-V to 24-V Input, 3-A Output Synchronous Buck Converter datasheet (Rev. A) PDF | HTML May 15, 2019
White paper Achieving Fast Load-Transient Response and Low EMI with the AECM DC/DC Control (Rev. A) PDF | HTML Oct 24, 2022
Application note Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) PDF | HTML Apr 29, 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) Apr 8, 2021
Application note Non-Isolated Point-of-Load Solutions for Elkhart Lake in Industrial PC App. (Rev. A) PDF | HTML May 21, 2020

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
Supported products & hardware
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Simulation model

TPS56339 PSPICE Transient Model

SLVMD41.ZIP (106 KB) - PSpice model
Supported products & hardware
Reference design

TIPA-050005 — Non-isolated point-of-load solutions for Tiger Lake in PC applications

Advanced processors and platforms such as the Intel® Tiger Lake micro-architecture need point-of-load (POL) solutions for memory, low-power CPU rails, and 3.3V and 5V rail requirements from an array of rechargeable batteries, or a 12V input bus. 

 

This power-supply design highlights the latest (...)

Supported products & hardware
Reference design

TIPA-050016 — Non-isolated point-of-load solutions for Elkhart Lake in industrial PC applications

Advanced processors and platforms, such as the Intel® Elkhart Lake micro-architecture, need point-of-load (POL) solutions for memory, low-power CPU rails, and 3.3V and 5V rail requirements from an array of rechargeable batteries or a 12V input bus.

This power-supply design highlights the latest (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DDC) 6 Ultra Librarian

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