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TPS568215

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4.5-V to 17-V, 8-A synchronous SWIFT™ buck converter with D-CAP3 control

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Data sheet

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TPS568231 ACTIVE 3.8-V to 17-V, 8-A synchronous buck converter with D-CAP3 control Pin-to-pin solution with higher efficiency

TPS568215

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification Operating temperature range (°C) -40 to 125 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1200 Iq (typ) (µA) 600 Control mode D-CAP3 Duty cycle (max) (%) 90 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification Operating temperature range (°C) -40 to 125 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1200 Iq (typ) (µA) 600 Control mode D-CAP3 Duty cycle (max) (%) 90 Type Converter
VQFN-HR (RNN) 18 12.25 mm² 3.5 x 3.5
  • Integrated 19-mΩ and 9.4-mΩ MOSFETs
  • Selectable F SW of 400 kHz, 800 kHz, and 1.2 MHz
  • Adjustable current limit settings with hiccup re-start
  • 0.6-V ±1% reference voltage across full temperature range
  • Optional external 5-V bias support for enhanced efficiency
  • D-CAP3™ control mode for fast transient response
  • Selectable forced continuous conduction mode (FCCM) for tight output voltage ripple or auto- skipping Eco-mode™ for high light-load efficiency
  • 0.6-V to 5.5-V output voltage range
  • Supports all ceramic capacitors
  • Monotonic start-up into pre-biased outputs
  • Adjustable soft start with a default 1-ms soft-start time
  • –40°C to 150°C operating junction temperature
  • Small 3.5-mm × 3.5-mm HotRod™ QFN package
  • Pin-to-pin compatible with 8-A TPS568231 and 12-A TPS56C231 and TPS56C215
  • Supported at the WEBENCH design center
  • Integrated 19-mΩ and 9.4-mΩ MOSFETs
  • Selectable F SW of 400 kHz, 800 kHz, and 1.2 MHz
  • Adjustable current limit settings with hiccup re-start
  • 0.6-V ±1% reference voltage across full temperature range
  • Optional external 5-V bias support for enhanced efficiency
  • D-CAP3™ control mode for fast transient response
  • Selectable forced continuous conduction mode (FCCM) for tight output voltage ripple or auto- skipping Eco-mode™ for high light-load efficiency
  • 0.6-V to 5.5-V output voltage range
  • Supports all ceramic capacitors
  • Monotonic start-up into pre-biased outputs
  • Adjustable soft start with a default 1-ms soft-start time
  • –40°C to 150°C operating junction temperature
  • Small 3.5-mm × 3.5-mm HotRod™ QFN package
  • Pin-to-pin compatible with 8-A TPS568231 and 12-A TPS56C231 and TPS56C215
  • Supported at the WEBENCH design center

The TPS568215 is TI’s smallest, monolithic, 8-A, synchronous buck converter with an adaptive on-time D-CAP3™ control mode. The device integrates low R DS(on) power MOSFETs that enable high efficiency and offers ease-of-use with minimum external component count for space-conscious power systems. Key features include a very accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, adjustable current limit, and no requirement for external compensation. A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS568215 is available in a thermally enhanced 18-pin HotRod QFN package and is designed to operate from –40°C to 150°C junction temperature. TPS568215 is pin-to-pin compatible with TPS56C215 which gives the user flexibility to pick solutions from 6 A to 12 A in the same footprint.

The TPS568215 is TI’s smallest, monolithic, 8-A, synchronous buck converter with an adaptive on-time D-CAP3™ control mode. The device integrates low R DS(on) power MOSFETs that enable high efficiency and offers ease-of-use with minimum external component count for space-conscious power systems. Key features include a very accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, adjustable current limit, and no requirement for external compensation. A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS568215 is available in a thermally enhanced 18-pin HotRod QFN package and is designed to operate from –40°C to 150°C junction temperature. TPS568215 is pin-to-pin compatible with TPS56C215 which gives the user flexibility to pick solutions from 6 A to 12 A in the same footprint.
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Technical documentation

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Type Title Date
* Data sheet TPS568215 4.5-V to 17-V Input , 8-A Synchronous Step-Down SWIFT Converter datasheet (Rev. C) PDF | HTML 11 Aug 2023
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
EVM User's guide TPS568215 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 24 Jun 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Technical article Options for reducing the MLCC count for DC/DC switching regulators PDF | HTML 17 Sep 2019
Application note Expand Minimum Input Voltage with External VCC Bias in Buck Converter PDF | HTML 09 Jan 2019
Application note DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 11 Dec 2018
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24 Aug 2018
Technical article How PMICs can help streamline FPGA power design challenges PDF | HTML 23 Jun 2018
Application note Reduced Size, Double Sided Layout for High-Current DC/DC Converters 05 Apr 2018
Application note Understanding Eco-mode(TM) Operation 05 Dec 2016

Design & development

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

Evaluation board

TPS568215EVM-762 — TPS568215 Synchronous Step-Down SWIFT™ Converter Evaluation Module

TPS568215EVM-762 is an 8 A synchronous converter evaluation module (EVM).  The EVM generates a 1.2 V output voltage from a nominal 12 V input.  The input voltage range is 4.5 V to 17 V with a typical start up voltage of 4.2 V.  The circuit is set upfor default operation frequency of (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS568215 PSpice Transient Model

SLVMBT9.ZIP (123 KB) - PSpice Model
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Reference designs

TIDA-01480 — Integrated Power Supply Reference Design for Xilinx Zynq® UltraScale+™ ZU2CG−ZU5EV MPSoCs

The TIDA-01480 reference design is a scalable power supply designed to provide power to the Xilinx Zynq UltraScale+ (ZU+) family of MPSoC devices. The design receives power from a standard DC power supply and provides power to all rails of the Xilinx chipset and DDR memory through a well-defined (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-050000 — Integrated Power Supply Reference Design for Xilinx Artix®-7, Spartan®-7, and Zynq®-7000 FPGAs

This reference design is a scalable power supply designed to provide power to the Xilinx Artix-7, Spartan-7, and Zynq-7000 families of FPGA-based devices. The design receives power from a standard DC power supply and provides power to all rails of the Xilinx chipset and DDR memory through a (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RNN) 18 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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