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TPS568236

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4.5-V to 18-V input, 8-A synchronous step-down voltage regulator with on-time D-CAP3 contro

Product details

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VQFN-HR (RJN) 12 6 mm² 3 x 2
  • 4.5-V to 18-V input voltage range
  • 0.6-V to 5.5-V output voltage range
  • Integrated 22-mΩ and 11-mΩ MOSFETs
  • Support 8-A continuous I OUT
  • 84-µA low quiescent current
  • ±1% reference voltage (0.6 V) at 25°C
  • ±1.5% reference voltage (0.6 V) at –40°C to 125°C
  • 600-kHz switching frequency
  • D-CAP3™ control mode for fast transient response
  • Supports POSCAP and all MLCC output capacitor
  • Output discharge function
  • Adjustable soft start
  • Selectable PSM and FCCM under light load
  • Power-good indicator to monitor output voltage
  • Auto recover output OV and UV protection
  • Non-latched UVLO and OT protection
  • Cycle-by-cycle overcurrent protection
  • Built-in output discharge feature
  • Small 2.00-mm × 3.00-mm HotRod™ QFN package
  • 4.5-V to 18-V input voltage range
  • 0.6-V to 5.5-V output voltage range
  • Integrated 22-mΩ and 11-mΩ MOSFETs
  • Support 8-A continuous I OUT
  • 84-µA low quiescent current
  • ±1% reference voltage (0.6 V) at 25°C
  • ±1.5% reference voltage (0.6 V) at –40°C to 125°C
  • 600-kHz switching frequency
  • D-CAP3™ control mode for fast transient response
  • Supports POSCAP and all MLCC output capacitor
  • Output discharge function
  • Adjustable soft start
  • Selectable PSM and FCCM under light load
  • Power-good indicator to monitor output voltage
  • Auto recover output OV and UV protection
  • Non-latched UVLO and OT protection
  • Cycle-by-cycle overcurrent protection
  • Built-in output discharge feature
  • Small 2.00-mm × 3.00-mm HotRod™ QFN package

The TPS568236 is monolithic, 8-A, synchronous buck converters with adaptive on-time D-CAP3 control mode. Integrated low R DS(on) power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, forced PWM mode for fixed switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation.

The TPS568236 provides complete protection OVP, UVP, OCP, OTP and UVLO. The device is a combined power-good signal and output discharge function.

The TPS568236 supports both internal and external soft-start time option. The device has the internal fixed soft-start time 1 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve it by connecting the external capacitor

The TPS568236 is available in a thermally enhanced 12-pin QFN package and is designed to operate from –40°C to 125°C junction temperature.

The TPS568236 is monolithic, 8-A, synchronous buck converters with adaptive on-time D-CAP3 control mode. Integrated low R DS(on) power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, forced PWM mode for fixed switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation.

The TPS568236 provides complete protection OVP, UVP, OCP, OTP and UVLO. The device is a combined power-good signal and output discharge function.

The TPS568236 supports both internal and external soft-start time option. The device has the internal fixed soft-start time 1 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve it by connecting the external capacitor

The TPS568236 is available in a thermally enhanced 12-pin QFN package and is designed to operate from –40°C to 125°C junction temperature.

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Technical documentation

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Type Title Date
* Data sheet TPS568236 4.5-V to 18-V Input, 8-A Synchronous Buck Converter With Hiccup OVP/UVP/OC, Adjustable Vout, and Soft-Start PSM/FCCM Modes datasheet PDF | HTML 10 Nov 2023
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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Evaluation board

TPS568236EVM — TPS56823 evaluation module, 4.5-V to 18-V, 8-A synchronous step-down voltage regulator

The TPS56823 evaluation module (EVM) is a single, synchronous buck converter providing 5.1 V at 8 A from 6 V to 18 V input with D-CAP3™ mode and a very low external component count.
User guide: PDF | HTML
Simulation model

TPS568236 PSPICE Model

SLUM879.ZIP (299 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 (...)
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VQFN-HR (RJN) 12 View options

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