4.5V to 17V Input, DCAP3 Mode, 8A Synchronous SWIFT™ Step-Down Converter


Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 8 Iq (Typ) (mA) 0.6 Iq (Typ) (uA) 600 Switching frequency (Min) (kHz) 400 Switching frequency (Max) (kHz) 1200 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Forced PWM, Soft Start Adjustable Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN-HR (RNN) 18 12 mm² 3.5 x 3.50.9 open-in-new Find other Buck converters (integrated switch)


  • Integrated 19-mΩ and 9.4-mΩ MOSFETs
  • Selectable FSW 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 Ceramic Output Capacitors
  • Monotonic Startup 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
  • Supported at the WEBENCHreg; Design Center
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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 RDS(on) power MOSFETs that enable high efficiency and offers ease-of-use with minimum external component count for space-conscious power systems. Competitive 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 6A to 12A in the same footprint.

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TPS568230 ACTIVE 4.5-V to 18-V input, 8-A synchronous step-down voltage regulator This product has a smaller 3-mm x 3-mm package that can enable lower total solution cost.

Technical documentation

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Type Title Date
* Datasheet TPS568215 4.5-V to 17-V Input , 8-A Synchronous Step-Down SWIFT™ Converter datasheet (Rev. A) Oct. 29, 2016
Selection guides Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
Technical articles Options for reducing the MLCC count for DC/DC switching regulators Sep. 17, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Expand Minimum Input Voltage with External VCC Bias in Buck Converter Jan. 09, 2019
Application notes DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems Dec. 11, 2018
Application notes Solve Point-of-Load Power Design Challenges: Single Board Computer Applications Aug. 24, 2018
Technical articles How PMICs can help streamline FPGA power design challenges Jun. 23, 2018
Application notes Reduced Size, Double Sided Layout for High-Current DC/DC Converters Apr. 05, 2018
Application notes Understanding Eco-mode(TM) Operation Dec. 05, 2016
User guides TPS568215EVM-762 8-A, SWIFT™ Regulator Evaluation Module User's Guide Oct. 23, 2016

Design & development

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

Hardware development

document-generic User guide
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 1.2 MHz.
  • 4.5 V to 17 V input voltage
  • Selectable switching frequency, 1.2 MHz operation pre-set
  • Selectable current limit, 8 A output current pre-set
  • Selectable DCM/FCCM operation, FCCM pre-set
  • DCAP3 topology

Design tools & simulation

SLVMBT9.ZIP (123 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Integrated Power Supply Reference Design for Xilinx Zynq® UltraScale+™ ZU2CG−ZU5EV MPSoCs
TIDA-01480 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 (...)
document-generic Schematic document-generic User guide
Integrated Power Supply Reference Design for Xilinx Artix®-7, Spartan®-7, and Zynq®-7000 FPGAs
TIDA-050000 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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VQFN-HR (RNN) 18 View options

Ordering & quality

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