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TPS84320
  • TPS84320
  • TPS84320

TPS84320

ACTIVE

4.5-V to 14.5-V Input, 3-A Synchronous Buck, Integrated Power Solution

Texas Instruments TPS84320 Product Info

1 April 2026 3

Parameters

Rating

Catalog

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

14.5

Vin (min) (V)

4.5

Vout (max) (V)

5.5

Vout (min) (V)

0.8

Features

EMI Tested, Enable, Frequency synchronization, Power good, Remote Sense, Tracking

Operating temperature range (°C)

-40 to 85

Type

Module

Duty cycle (max) (%)

100

Control mode

current mode

Switching frequency (min) (kHz)

330

Switching frequency (max) (kHz)

780

Package

B1QFN (RUQ)-47-135 mm² 15 x 9

Features

  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Efficiencies Up To 95%
  • Wide-Output Voltage Adjust
    0.8 V to 5.5 V, with 1% Reference Accuracy
  • Optional Split Power Rail Allows
    Input Voltage Down to 1.6 V
  • Adjustable Switching Frequency
    (330 kHz to 780 kHz)
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Output Voltage Sequencing / Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Overcurrent Protection - Hiccup-Mode
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 13°C/W
  • Meets EN55022 Class B Emissions
  • For Design Help Including SwitcherPro™ visit http://www.ti.com/TPS84320
  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Efficiencies Up To 95%
  • Wide-Output Voltage Adjust
    0.8 V to 5.5 V, with 1% Reference Accuracy
  • Optional Split Power Rail Allows
    Input Voltage Down to 1.6 V
  • Adjustable Switching Frequency
    (330 kHz to 780 kHz)
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Output Voltage Sequencing / Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Overcurrent Protection - Hiccup-Mode
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 13°C/W
  • Meets EN55022 Class B Emissions
  • For Design Help Including SwitcherPro™ visit http://www.ti.com/TPS84320

Description

The TPS84320RUQ is an easy-to-use integrated power solution that combines a 3-A DC/DC converter with power MOSFETs, an inductor, and passives into a low profile, BQFN package. This total power solution allows as few as 3 external components and eliminates the loop compensation and magnetics design 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 up to 95% efficiency and excellent power dissipation with a thermal impedance of 13°C/W junction to ambient. The device delivers the full 3-A rated output current at 85°C ambient temperature without airflow.

The TPS84320 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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