TPS84621

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2.95-V to 14.5-V Input, 6-A Synchronous Buck, Integrated Power Solution

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Product details

Parameters

Iout (Max) (A) 6 Vin (Min) (V) 2.95 Vin (Max) (V) 14.5 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Adjustable Features Enable, Frequency Synchronization Operating temperature range (C) -40 to 85 Iq (Typ) (mA) 13.4 Iq (Typ) (uA) 13400 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 780 Switching frequency (Min) (kHz) 250 Switching frequency (Typ) (kHz) 500 Duty cycle (Max) (%) 85 Topology Buck open-in-new Find other Buck modules (integrated inductor)

Package | Pins | Size

B1QFN (RUQ) 47 135 mm² 15 x 9 open-in-new Find other Buck modules (integrated inductor)

Features

  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Efficiencies Up To 96%
  • Wide-Output Voltage Adjust
    0.6 V to 5.5 V, with 1% Reference Accuracy
  • Supports Parallel Operation for Higher Current
  • Optional Split Power Rail allows
    input voltage down to 1.6 V
  • Adjustable Switching Frequency
    (250 kHz to 780 kHz)
  • Synchronizes to an External Clock
  • Adjustable Slow Start
  • Output Voltage Sequencing and Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Output Overcurrent Protection (Hiccup Mode)
  • Overtemperature Protection
  • Prebias Output Start-up
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 13°C/W
  • Meets EN55022 Class B Emissions
  • Design Help visit http://www.ti.com/TPS84621

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Description

The TPS84621 is an easy-to-use integrated power solution that combines a 6-A DC-to-DC converter with power MOSFETs, an inductor, and passives into a low profile, BQFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 9×15×2.8 mm BQFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design with greater than 90% efficiency and excellent power dissipation with a thermal impedance of 13°C/W junction to ambient. The device delivers the full 6-A rated output current at 85°C ambient temperature without airflow.

The TPS84621 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering performance DSPs and FPGAs. Advanced packaging technology afford a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

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Technical documentation

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Type Title Date
* Datasheet TPS84621 2.95-V to 14.5-V Input, 6-A Synchronous Buck, Integrated Power Solution datasheet (Rev. E) Apr. 10, 2018
Application notes Soldering Requirements for BQFN Packages (Rev. C) Mar. 05, 2020
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guides TI Power Reference Design for Xilinx® Artix®-7 (AC701) May 12, 2014
User guides PMP7977 User's Guide Sep. 11, 2013
Application notes AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) Apr. 23, 2013
Application notes TPS84621 Parallel Operation Jan. 22, 2013
Application notes Powering TPS84k Devices from 3.3 V Jan. 04, 2013
More literature TPS84k Integrated Power Modules Info Card (Rev. A) Aug. 28, 2012
User guides TPS84620EVM-692 6-A, Integrated Power Solution EVM (Rev. A) Aug. 24, 2011
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations Jul. 12, 2005
Application notes AN-643 EMI/RFI Board Design (Rev. B) May 03, 2004

Design & development

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

Design tools & simulation

SIMULATION MODELS Download
SLVM558A.ZIP (60 KB) - PSpice Model
SIMULATION MODELS Download
SLVM594.ZIP (68 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVM595.TSC (174 KB) - TINA-TI Reference Design
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
  • (...)

Reference designs

REFERENCE DESIGNS Download
Power for Altera Cyclone V (Cyclone 5) FPGA (.75V@.75A) Reference Design
PMP8571 — PMP8571 is an easy to use power solution designed using integrated inductor power modules for Altera’s Cyclone 5 FPGA. This design used TPS84621 and TPS84320 along with TPS51200 to generate 5 rails to power the FPGA.
Design files
REFERENCE DESIGNS Download
Xilinx Artix 7 FPGA with PMBus Power Management Reference Design
PMP7977 The Artix 7 power management reference design board uses power modules, linear regulators, and a PMBus compliant system controller to supply all required core and auxiliary voltages needed by the FPGA, including DDR memory termination. A Digital Power graphical user interface is used to monitor the (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
B1QFN (RUQ) 47 View options

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