3.8V to 17V Input, DCAP3 Mode, 12A Synchronous Step-Down SWIFT™ Converter


Product details


Vin (Min) (V) 3.8 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 12 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 13.5-mΩ and 4.5-mΩ MOSFETs
  • Support 12-A Continuous IOUT
  • 4.5-V Start up without External 5.0-V Bias
  • 0.6V +/-1% Reference Voltage across full temperature range
  • 0.6 V to 5.5 V Output Voltage Range
  • Supports Ceramic Output Capacitors
  • 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
  • Selectable FSW of 400 kHz, 800 kHz and 1.2 MHz
  • Monotonic Start Up into Pre-biased Outputs
  • Two Adjustable Current Limit Settings with Hiccup Re-start
  • Optional External 5V bias for Enhanced Efficiency
  • Adjustable Soft Start with a Default 1-ms Soft Start Time
  • –40°C to 150°C Operating Junction Temperature
  • Small 3.5-mm x 3.5-mm HotRod™ QFN Package
  • Supported at the WEBENCH™ Design Center

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The TPS56C215 is TI’s smallest monolithic 12-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 TPS56C215 is available in a thermally enhanced 18-pin HotRod™ QFN package and is designed to operate from –40°C to 150°C junction temperature.

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Technical documentation

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Type Title Date
* Datasheet TPS56C215 3.8-V to 17-V Input , 12-A Synchronous Step-Down SWIFT™ Converter datasheet (Rev. C) Nov. 15, 2017
Selection guides Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
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
Selection guides Control-Mode Quick Reference Guide (Rev. A) Sep. 14, 2017
User guides TPS56C215EVM-762 12-A, SWIFT™ Regulator Evaluation Module User's Guide (Rev. B) Aug. 02, 2017
Application notes Understanding Eco-mode(TM) Operation Dec. 05, 2016
Application notes Accuracy-Enhanced Ramp-Generation Design for D-CAP3 Modulation (Rev. A) Apr. 25, 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
The TPS56C215EVM-762 is a 12 A synchronous converter evaluation module (EVM).  The EVM generates a 1.2 V output voltage froma 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 up for default operation of 1.2 MHz per phase.
  • 4.5 V to 17 V input voltage
  • Selectable switching frequency, 1.2 MHz operation pre-set
  • Selectable current limit, 12 A output current pre-set
  • Selectable DCM/FCCM operation, FCCM pre-set
  • DCAP2 topology

Design tools & simulation

SLVMBI9A.ZIP (70 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
DC-DC POL 12V In Dual 1.2V/10A Output Reference Design
PMP40071 — The PMP40071 is a POL module reference design suitable for DSP & FPGA applications with a DC input of 8.3V – 14V. Its ultra-high power density can help the power system to handle a high power delivery while keep a small profile. It provides a good design flexibility for different (...)
document-generic Schematic document-generic User guide
Industrial 15V – 42V VIN Power Reference Design With Dual VOUT of 1.2V@10A and 1V@10A
PMP15018 — The PMP15018 reference design incorporates the TPS54541 42V 5A DC/DC converter and two TPS56C215 17V, 12A DC/DC converters.  The solution operates from 15V to 42V input and generates 1.0V @10A and 1.2V@10A voltage rails.  The 1.0V and 1.2V converters operate at 1MHz and 400kHz respectively (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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Ordering & quality

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