TPS568230

ACTIVE

4.5-V to 18-V, 8-A synchronous SWIFT™ buck converter optimized for solution cost

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 110 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 110 Duty cycle (max) (%) 85
VQFN-HR (RJE) 20 9 mm² 3 x 3
  • Input voltage range: 4.5 V to 18 V
  • D-CAP3™ architecture control for fast transient response
  • Output voltage range: 0.6 V to 7 V
  • 0.6-V±1% reference voltage (25°C)
  • Supports 8-A continuous output current
  • Integrated 19.5-mΩ and 9.5-mΩ RDS(on) internal power MOSFET
  • ULQ™(Ultra Low Quiescent current) feature to enable long battery life
  • Selectable operation modes:
    • Forced continuous conduction mode (FCCM)
    • Out-of-Audio™(OOA) Mode
    • Advanced Eco-Mode™
  • Selectable 600-kHz, 800-kHz and 1-MHz switching frequency
  • Supports up to 90% duty operation
  • Adjustable soft start time by SS pin
  • Power good output
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Non-latched for fault protection
  • Small 3.0-mm × 3.0-mm HotRod™ QFN package
  • Input voltage range: 4.5 V to 18 V
  • D-CAP3™ architecture control for fast transient response
  • Output voltage range: 0.6 V to 7 V
  • 0.6-V±1% reference voltage (25°C)
  • Supports 8-A continuous output current
  • Integrated 19.5-mΩ and 9.5-mΩ RDS(on) internal power MOSFET
  • ULQ™(Ultra Low Quiescent current) feature to enable long battery life
  • Selectable operation modes:
    • Forced continuous conduction mode (FCCM)
    • Out-of-Audio™(OOA) Mode
    • Advanced Eco-Mode™
  • Selectable 600-kHz, 800-kHz and 1-MHz switching frequency
  • Supports up to 90% duty operation
  • Adjustable soft start time by SS pin
  • Power good output
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Non-latched for fault protection
  • Small 3.0-mm × 3.0-mm HotRod™ QFN package

The TPS568230 is a cost effective, high-voltage input, high efficiency synchronous buck converter with integrated MOSFETs.

The TPS568230 has the ULQ™ (Ultra Low Quiescent current) feature to enable low-bias current. It operates with supply input voltage from 4.5 V to 18 V. It uses DCAP3™ control mode to provide fast transient response, good line, load regulation, no requirement for external compensation, and support low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS568230 provides complete Over-voltage, Under-voltage, Over-current, Over-temperature and Under-voltage lock-out protections. It is combined power good signal , output discharge function and large duty operation feature.

TPS568230 is equipped with a MODE pin to select the desirable mode of operation. To attain high efficiency at light load, OOA mode and Advanced Eco-mode™ could be selected. OOA mode will not allow the part to go below audible frequency ( below 25kHz switching frequency ). FCCM is also available to support tight output voltage ripple requirement.

The TPS568230 supports both internal and external soft-start time option. The internal fixed soft-start time is 1.3 ms. Longer soft-start time can be get by connecting the external capacitor on SS pin.

The TPS568230 is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from -40oC to 125oC.

The TPS568230 is a cost effective, high-voltage input, high efficiency synchronous buck converter with integrated MOSFETs.

The TPS568230 has the ULQ™ (Ultra Low Quiescent current) feature to enable low-bias current. It operates with supply input voltage from 4.5 V to 18 V. It uses DCAP3™ control mode to provide fast transient response, good line, load regulation, no requirement for external compensation, and support low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS568230 provides complete Over-voltage, Under-voltage, Over-current, Over-temperature and Under-voltage lock-out protections. It is combined power good signal , output discharge function and large duty operation feature.

TPS568230 is equipped with a MODE pin to select the desirable mode of operation. To attain high efficiency at light load, OOA mode and Advanced Eco-mode™ could be selected. OOA mode will not allow the part to go below audible frequency ( below 25kHz switching frequency ). FCCM is also available to support tight output voltage ripple requirement.

The TPS568230 supports both internal and external soft-start time option. The internal fixed soft-start time is 1.3 ms. Longer soft-start time can be get by connecting the external capacitor on SS pin.

The TPS568230 is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from -40oC to 125oC.

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Technical documentation

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Type Title Date
* Data sheet TPS568230 4.5-V to 18-V Input, 8-A Synchronous Step-Down Voltage Regulator datasheet (Rev. C) PDF | HTML 08 Aug 2019
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Application note How the Switching Frequency Affects the Performance of Buck Converter (Rev. A) PDF | HTML 16 Apr 2024
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network PDF | HTML 27 Feb 2024
Application note 8-A DC/DC Buck Converter Selection Guide of Mid-range VIN (1.5 V - 28 V) PDF | HTML 06 Oct 2023
Application note Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML 21 Apr 2023
Application note Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 2 PDF | HTML 02 Aug 2021
EVM User's guide TPS568230 Buck Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 24 Jun 2021
Application note Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 1 PDF | HTML 09 Jun 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Certificate TPS568230EVM EU RoHS Declaration of Conformity (DoC) 17 Sep 2020
Application note Large Duty Cycle Operation With the TPS568230 31 Mar 2020
Technical article How to choose a DC/DC converter for a storage application PDF | HTML 09 May 2019
Application note Understanding OOA Operation Mode 15 Feb 2019

Design & development

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

Evaluation board

TPS568230EVM — 8-A synchronous step-down voltage regulator evaluation module

The TPS568230 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS568230 step-down converters. The TPS568230EVM operates from 4.5-V to 18-V input (12-V nominal) and provides a 1.05-V, 8-A output. Several jumpers and switches allow user to evaluate different (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS568230 PSpice Transient Model

SLVMCZ2.ZIP (100 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RJE) 20 Ultra Librarian

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