TPS54620

ACTIVE

4.5V to 17V Input, 6A Synchronous Step-Down SWIFT™ Converter

A newer version of this product is available
Exact equivalent in functionality and parametrics to the compared device:
NEW TPS543620 PREVIEW 4-V to 18-V input, advanced current mode, 6-A synchronous SWIFT™ step-down converter This upgraded 6-A converter product offers more efficiency in a smaller package.
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Product details

Parameters

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 Iq (Typ) (uA) 600 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 1600 Features Enable, Frequency Synchronization, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, Soft Start Adjustable Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN (RGY) 14 12 mm² 3.5 x 3.5 VQFN (RHL) 14 12 mm² 3.5 x 3.5 open-in-new Find other Buck converters (integrated switch)

Features

  • 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

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Description

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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Same functionality and pinout but is not an equivalent to the compared device:
TPS54320 ACTIVE 4.5V to 17V Input, 3A Synchronous Step-Down SWIFT™ Converter This product is a pin-compatible 3-A converter with the same functionality.
Similar but not functionally equivalent to the compared device:
TPS54824 ACTIVE 4.5V to 17V Input, Current Mode, 8A Synchronous SWIFT™ Step-Down Converter This product is an 8-A converter with better efficiency in a high-power density HotRod™ QFN package.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS54620 4.5-V to 17-V Input, 6-A, Synchronous, Step-Down SWIFT™ Converter datasheet (Rev. F) May 23, 2017
Selection guides Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
Application notes Calculating Efficiency (Rev. A) Mar. 06, 2020
Application notes Minimizing Output Ripple During Startup (Rev. A) May 20, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) Jun. 25, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Selection guides Control-Mode Quick Reference Guide (Rev. A) Sep. 14, 2017
Application notes Minimizing Output Ripple During Startup Jun. 22, 2017
User guides TPS54620EVM-374 6-A, SWIFT Regulator Evaluation Module (Rev. A) Mar. 20, 2017
Technical articles Voltage regulator features – inside the black box May 30, 2016
Application notes Not All Jitter Is Created Equal (Rev. A) Jul. 04, 2015
Technical articles Power Tips: Calculating capacitance for load transients May 14, 2015
Application notes Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co Jul. 11, 2014
Application notes Understanding Thermal Dissipation and Design of a Heatsink May 04, 2011
Application notes Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) Sep. 15, 2010
Application notes Ultra Small 5A, Adjustable Output Reference design using TPS54620 May 21, 2010
Application notes TPS54620 Parallel Operation Mar. 03, 2010
Application notes Measuring the Junction Temperature of the TPS54620 Jan. 14, 2010

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
25
Description
The TPS54620EVM-374 evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54620 regulator. The TPS54620 dc/dc converter is designed to provide up to a 6A output. The TPS54620 implements a split input power rails with (...)
DEVELOPMENT KITS Download
document-generic User guide
699
Description

The K2G Evaluation Module (EVM) enables developers to immediately start evaluating the 66AK2Gx - 600MHz processor, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive applications.  Similar to (...)

Features
  • 66AK2G02 C66x DSP+ARM A15 Processor at 600MHz
  • 2-GByte DDR3L with ECC
  • TPS659118 PMIC
  • Audio and Serial expansion headers
  • Processor SDK Linux and TI-RTOS support
  • Supports Gigabit Ethernet
DEVELOPMENT KITS Download
document-generic User guide
699
Description

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 (...)

Features
  • 66AK2G12 C66x DSP+ARM A15 Processor at 1GHz
  • 2-GByte DDR3L with ECC
  • TPS65911A PMIC
  • Audio and serial expansion headers
  • Processor SDK Linux and TI-RTOS support
DEVELOPMENT KITS Download
document-generic User guide
1049
Description

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 (...)

Features
  • 66AK2G12 C66x DSP+ARM A15 Processor at 1GHz
  • 2-GByte DDR3L with ECC
  • TPS65911A PMIC
  • Audio and serial expansion headers
  • Processor SDK Linux and TI-RTOS support

Design tools & simulation

SIMULATION MODELS Download
SLIM101B.ZIP (118 KB) - PSpice Model
SIMULATION MODELS Download
SLIM102.TSC (286 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM103.ZIP (67 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLIM303A.ZIP (93 KB) - PSpice Model
SIMULATION MODELS Download
SLVM350.TSC (76 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVM351.ZIP (6 KB) - TINA-TI Spice Model
SIMULATION TOOLS Download
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 (...)
Features
  • 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
  • (...)
CALCULATION TOOLS Download
TPS54620 & TPS54XXX Current-Mode Step-Down Converter Design Calculator
TPS54620DESIGN-CALC — 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 (...)
CALCULATION TOOLS Download
SLVC219E.ZIP (54 KB)
CALCULATION TOOLS Download
SLVC439A.ZIP (101 KB)

Reference designs

Many TI reference designs include the TPS54620 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
VQFN (RGY) 14 View options
VQFN (RHL) 14 View options

Ordering & quality

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Support & training

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