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Product details

Parameters

Iout (Max) (A) 10 Vin (Min) (V) 2.95 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Adjustable Features Current Sharing, EMI Tested, Frequency Synchronization, Light Load Efficiency, Power Good, Remote Sense, Tracking Operating temperature range (C) -40 to 85 Iq (Typ) (uA) 800 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 1200 Switching frequency (Min) (kHz) 200 Duty cycle (Max) (%) 100 Topology Buck open-in-new Find other Buck modules (integrated inductor)

Package | Pins | Size

B3QFN (RVQ) 42 100 mm² 10 x 10 open-in-new Find other Buck modules (integrated inductor)

Features

  • Complete integrated power solution allows
    small footprint, low-profile design
  • 10-mm × 10-mm × 4.3-mm package
  • Efficiencies up to 95%
  • Eco-mode™ / light load efficiency (LLE)
  • 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 2.95 V
  • Adjustable switching frequency
    (200 kHz to 1.2 MHz)
  • Synchronizes to an external clock
  • Provides 180° out-of-phase clock signal
  • Adjustable slow-start
  • Output voltage sequencing / tracking
  • Power-good output
  • Programmable undervoltage lockout (UVLO)
  • Overcurrent and overtemperature protection
  • Prebias output start-up
  • Operating temperature range: –40°C to +85°C
  • Enhanced thermal performance: 13.3°C/W
  • Meets EN55022 Class B Emissions

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Description

The TPS84A20 is an easy-to-use integrated power solution that combines a 10-A DC/DC converter with power MOSFETs, an inductor, and passives into a low profile, QFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 10-mm × 10-mm × 4.3-mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. Achieves greater than 95% efficiency and excellent power dissipation capability with a thermal impedance of 13.3°C/W. The TPS84A20 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering a wide range of ICs and systems. Advanced packaging technology affords 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
* Data sheet TPS84A20 2.95-V to 17-V Input, 10-A Synchronous Buck, Integrated Power Solution datasheet (Rev. C) Dec. 19, 2019
Application note Soldering Requirements for BQFN Packages (Rev. C) Mar. 05, 2020
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) Apr. 23, 2013
Application note TPS84A20 Parallel Operation Feb. 21, 2013
Application note Powering TPS84k Devices from 3.3 V Jan. 04, 2013
More literature TPS84k Integrated Power Modules Info Card (Rev. A) Aug. 28, 2012
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations Jul. 12, 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) May 03, 2004

Design & development

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Design tools & simulation

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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
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Reference designs

REFERENCE DESIGNS Download
Arria V Power Reference Design
PMP8610 Power Solution Reference Design for Arria V FPGA from Altera.  This solution uses integrated inductor modules for ease of use to help design power solution for Arria V FPGA from Altera.  This design incorporate sequencing need for the PFGA as well.

Special Note

Go to the TPS84 to LMZ3 part number cross (...)

document-generic Schematic document-generic User guide
Design files
REFERENCE DESIGNS Download
Multi-output Multi-buck 20W Power Supply for Xilinx Zynq FPGA Applications Reference Design
PMP9335 PMP9335 is designed for Xilinx Zynq FPGA applications utilizing the TPS84A20 and TPS84320. This design uses an external timer to synchronize the switching frequency to 300 kHz. It also employs a controlled power up and power down sequence.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
B3QFN (RVQ) 42 View options

Ordering & quality

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