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TPS54620

ACTIVE

4.5-V to 17-V, 6-A synchronous SWIFT™ buck converter

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Similar functionality to the compared device
TPS543620 ACTIVE 4-V to 18-V input, advanced current mode, 6-A synchronous SWIFT™ step-down converter Higher efficiency converter in a smaller package.

Product details

Vin (min) (V) 4.5 Vin (max) (V) 17 Vout (min) (V) 0.8 Vout (max) (V) 15 Iout (max) (A) 6 Iq (typ) (mA) 0.6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 17 Vout (min) (V) 0.8 Vout (max) (V) 15 Iout (max) (A) 6 Iq (typ) (mA) 0.6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
VQFN (RGY) 14 12.25 mm² 3.5 x 3.5 VQFN (RHL) 14 12.25 mm² 3.5 x 3.5
  • Integrated 26 mΩ and 19 mΩ MOSFETs
  • Split Power Rail: 1.6 V to 17 V on PVIN
  • 200-kHz to 1.6-MHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8 V ±1% Voltage Reference Overtemperature
  • Low 2-µA Shutdown Quiescent Current
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 150°C Operating Junction Temperature Range
  • Adjustable Slow Start and Power Sequencing
  • Power Good Output Monitor for Undervoltage and Overvoltage
  • Adjustable Input Undervoltage Lockout
  • For SWIFT™ Documentation, Visit http://www.ti.com/swift
  • Create a Custom Design Using the TPS54620 With the WEBENCH Power Designer
  • Integrated 26 mΩ and 19 mΩ MOSFETs
  • Split Power Rail: 1.6 V to 17 V on PVIN
  • 200-kHz to 1.6-MHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8 V ±1% Voltage Reference Overtemperature
  • Low 2-µA Shutdown Quiescent Current
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 150°C Operating Junction Temperature Range
  • Adjustable Slow Start and Power Sequencing
  • Power Good Output Monitor for Undervoltage and Overvoltage
  • Adjustable Input Undervoltage Lockout
  • For SWIFT™ Documentation, Visit http://www.ti.com/swift
  • Create a Custom Design Using the TPS54620 With the WEBENCH Power Designer

The TPS54620 in thermally enhanced 3.50 mm × 3.50 mm QFN package is a full featured 17-V, 6-A, synchronous, step-down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the footprint of the inductor.

The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open-drain power good pins.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature.

The TPS54620 in thermally enhanced 3.50 mm × 3.50 mm QFN package is a full featured 17-V, 6-A, synchronous, step-down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the footprint of the inductor.

The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open-drain power good pins.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature.

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Technical documentation

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Type Title Date
* Data sheet TPS54620 4.5-V to 17-V Input, 6-A, Synchronous, Step-Down SWIFT™ Converter datasheet (Rev. F) PDF | HTML 23 May 2017
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part I: Filter Design for Out PDF | HTML 27 Feb 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
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 29 Aug 2023
Application note 6-A DC/DC Buck Converter Selection Guide of Mid-range VIN PDF | HTML 18 Apr 2023
EVM User's guide TPS54620 Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 24 Aug 2021
Technical article Which pinout is best? How individual, multifunctional and trimmed pinouts help add PDF | HTML 28 Jun 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Application note Calculating Efficiency (Rev. A) 06 Mar 2020
Application note Minimizing Output Ripple During Startup (Rev. A) 20 May 2019
Application note Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) 25 Jun 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Minimizing Output Ripple During Startup 22 Jun 2017
Technical article Voltage regulator features – inside the black box PDF | HTML 31 May 2016
Application note Not All Jitter Is Created Equal (Rev. A) 04 Jul 2015
Technical article Power Tips: Calculating capacitance for load transients PDF | HTML 14 May 2015
Application note Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co 11 Jul 2014
Application note Understanding Thermal Dissipation and Design of a Heatsink 04 May 2011
Application note Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15 Sep 2010
Application note Ultra Small 5A, Adjustable Output Reference design using TPS54620 21 May 2010
Application note TPS54620 Parallel Operation 03 Mar 2010
Application note Measuring the Junction Temperature of the TPS54620 14 Jan 2010

Design & development

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

Evaluation board

TPS54620EVM-374 — TPS54620 8V to 17V, 6A SWIFT™ Converter Evaluation Module

The TPS54620EVM-374 is designed to help the user easily evaluate and test the operation and functionality of the TPS54620 buck converter. The EVM converts a 4.5-V to 17-V input voltage to a regulated 3.3-V output voltage that delivers up to 6 A in a 3.5 x 3.5-mm QFN package. To improve performance (...)

User guide: PDF | HTML
Not available on TI.com
Development kit

EVMK2GX — 66AK2Gx 1GHz evaluation module

The EVMK2GX (also known as "K2G") 1GHz evaluation module (EVM) enables developers to immediately start evaluating the 66AK2Gx processor family, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive (...)

User guide: PDF
Not available on TI.com
Development kit

EVMK2GXS — 66AK2Gx (K2G) 1GHz High-Secure Evaluation Module

The K2G 1GHz High Secure Evaluation Module (EVM) enables developers to start  evaluating and testing the programming of the  high secure developmental version of the  66AK2Gx processor, and to accelerate the next stage of secure boot product development of audio and industrial real (...)

User guide: PDF
Simulation model

TPS54620 TINA-TI Average Reference Design

SLVM350.TSC (76 KB) - TINA-TI Reference Design
Simulation model

TPS54620 TINA-TI Average Spice Model

SLVM351.ZIP (6 KB) - TINA-TI Spice Model
Simulation model

TPS54620 TINA-TI Transient Reference Design

SLIM102.TSC (286 KB) - TINA-TI Reference Design
Simulation model

TPS54620 TINA-TI Transient Spice Model

SLIM103.ZIP (67 KB) - TINA-TI Spice Model
Simulation model

TPS54620 Unencrypted PSpice Average Package (Rev. A)

SLIM303A.ZIP (93 KB) - PSpice Model
Simulation model

TPS54620 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM101B.ZIP (118 KB) - PSpice Model
Calculation tool

SLVC439 Synchronous Inverting Buck Boost Design Calculator

Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
TPS54061 4.7V to 60V Input, 200mA Synchronous Step-Down Converter with Low IQ TPS54062 4.7V to 60V Input, 50mA Synchronous Step-Down Converter with Low IQ TPS54320 4.5V to 17V Input, 3A Synchronous Step-Down SWIFT™ Converter TPS54620 4.5-V to 17-V, 6-A synchronous SWIFT™ buck converter
Calculation tool

TPS54620DESIGN-CALC TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator

The Design Calculator Plus Application Note (SLVA352A) Calculator Tool calculates the critical external component values for the TPS54620/TPS54622/TPS54521/TPS54320/TPS54618/TPS54418/TPS54318/TPS54218/TPS54319. The calculator includes power stage design, feature design and Type II and Type III (...)
Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
TPS54218 2.95V to 6V Input, 2A Synchronous Step-Down SWIFT™ Converter TPS54318 2.95V to 6V Input, 3A Synchronous Step-Down SWIFT™ Converter TPS54319 2.95 V to 6 V input, 3 A, 2 MHz SWIFT™ synchronous step-down converter in a 3 mm x 3 mm QFN package TPS54320 4.5V to 17V Input, 3A Synchronous Step-Down SWIFT™ Converter TPS54418 2.95V to 6V Input, 4A Synchronous Step-Down SWIFT™ Converter TPS54521 17V Input, 5A Synchronous Step-Down Converter TPS54618 2.95V to 6V Input, 6A, Synchronous Step-Down SWIFT™ Converter TPS54620 4.5-V to 17-V, 6-A synchronous SWIFT™ buck converter TPS54622 4.5-V to 17-V, 6-A synchronous SWIFT™ buck converter with hiccup current limit TPS54821 4.5-V to 17-V, 8-A synchronous buck converter with hiccup current limit TPS56921 4.5-V to 17-V, 9-A synchronous buck converter with VID control
Hardware development
Evaluation board
TPS54418EVM-375 TPS54418 3.3V Input, 1.8V Output, 4A SWIFT™ Evaluation Module TPS54620EVM-374 TPS54620 8V to 17V, 6A SWIFT™ Converter Evaluation Module
Software
Calculation tool
TPS54620DESIGN-CALC TPS54620 & TPS54XXX Current-Mode Step-Down Converter Design Calculator
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 (...)
Reference designs

TIDEP0067 — 66AK2Gx DSP + ARM Processor Power Solution Reference Design

This reference design is  based on the 66AK2Gx multicore System-on-Chip (SoC) processor and companion TPS65911 power management integrated circuit (PMIC) which includes power supplies and power sequencing for the 66AK2Gx processor in a single device. This power solution design also includes (...)
Design guide: PDF
Schematic: PDF
Reference designs

DLP4500-C350REF — High Resolution, Portable Light Steering Reference Design using DLP Technology

This reference design, featuring the DLP® 0.45” WXGA chipset and implemented in the DLP® LightCrafter™ 4500 evaluation module (EVM), enables flexible control of high resolution, accurate patterns for industrial, medical, and scientific applications. With a free USB-based GUI and (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDEP0081 — Wideband Receiver Design Using 66AK2L06 JESD204B Attach to ADC32RF80 Reference Design

For wideband receiver system developers currently using FPGA or ASIC to connect High Speed data converters to a baseband processor, who need faster time to market with increased performance and significant reduction in cost, power, and size. This reference design includes the first widely available (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00254 — Accurate Point Cloud Generation for 3D Machine Vision Applications using DLP® Technology

The 3D Machine Vision reference design employs Texas Instruments DLP® Advanced Light Control Software Development Kit (SDK) for LightCrafter™ series controllers, which allows developers to easily construct 3D point clouds by integrating TI’s digital micromirror device (DMD) (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP6776 — Xilinx Kintex FPGA Power Reference Design

PMP6776 is a low-cost non-isolated synchronous buck power supply. This design uses TPS56121 and TPS54620 Synchronous Buck Converters and TPS54425 and TPS54225 Step-Down Switchers to generate 7 outputs. Features include input voltage range 10.8V to 13.2V and outputs 1V at 6A, 1.5V at 4A, 1.8V at 6A, (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP9357 — Altera Arria V FPGA Power Supply Reference Design

The PMP9357 reference design is a complete power solution for Altera's Arria V series FPGAs.  This design uses several TPS54620 synchronous step down converters, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  To provide correct power (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDEP0036 — Reference Design using TMS320C6657 to Implement Efficient OPUS Codec Solution

The TIDEP0036 reference design provides an example of the ease of running TI optimized Opus encoder/decoder on the TMS320C6657 device. Since Opus supports a a wide range of bit rates, frame sizes and sampling rates, all with low delay, it has applicability for voice communications, networked audio (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VQFN (RGY) 14 View options
VQFN (RHL) 14 View options

Ordering & quality

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