4.5-V to 28-V input, 1.2-V to 6-V output, 2.5-A power module


Product details


Iout (Max) (A) 2.5 Vin (Min) (V) 4.5 Vin (Max) (V) 28 Vout (Min) (V) 1.2 Vout (Max) (V) 6 Soft start Fixed Operating temperature range (C) -40 to 85 Iq (Typ) (uA) 45 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 923 Switching frequency (Min) (kHz) 578 Duty cycle (Max) (%) 100 Topology Buck, Inverting Buck-Boost, Synchronous Buck open-in-new Find other Buck modules (integrated inductor)

Package | Pins | Size

QFN-FCMOD (RKH) 9 18 mm² 4 x 4.5 open-in-new Find other Buck modules (integrated inductor)


  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • 4.5-mm × 4-mm × 2-mm QFN Package
  • Wide-Output Voltage Range (1.2 V to 6 V)
  • Fixed Switching Frequency (750 kHz)
  • Advanced Eco-mode™ for Light Load Efficiency
  • Programmable Undervoltage Lockout (UVLO)
  • Overtemperature Thermal Shutdown Protection
  • Overcurrent Protection (Hiccup Mode)
  • Safe Prebias Output Start-Up
  • Operating IC Junction Range: –40°C to +125°C
  • Operating Ambient Range: –40°C to +85°C
  • Enhanced Thermal Performance: 29.5°C/W
  • Meets EN55011 Radiated EMI Standards
    – Integrated Shielded Inductor
  • Create a Custom Design Using the TPSM84209 With the WEBENCH® Power Designer
open-in-new Find other Buck modules (integrated inductor)


The TPSM84209 power module is an easy-to-use integrated power supply that combines a 2.5-A DC/DC converter with a shielded inductor and passives into a low-profile QFN package. This total power solution allows as few as four external components while maintaining an ability to adjust key parameters to meet specific design requirements.

The wide input voltage range and small package size of the TPSM84209 makes the device an excellent fit for power rails that require up to 2.5 A of output current.

The QFN package is easy to solder to a printed circuit board and has excellent power dissipation capability. The TPSM84209 offers flexibility with many features and is ideal for powering a wide range of devices and systems.

open-in-new Find other Buck modules (integrated inductor)

Technical documentation

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Type Title Date
* Data sheet TPSM84209 4.5-V to 28-V Input, 1.2-V to 6-V Output, 2.5-A Power Module datasheet (Rev. C) Jul. 27, 2018
User guide TPSM84209 Power Module Evaluation Module User's Guide (Rev. A) Jun. 23, 2021
Technical article Shrink module size with Flip Chip On Lead (FCOL) package technology Apr. 20, 2018

Design & development

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Hardware development

document-generic User guide
The TPSM84209 evaluation board is configured to evaluate the operation of the TPSM84209 power module for current up to 2.5A. The input voltage range is 4.5V to 28V. The output voltage range is 1.2V to 6V. The evaluation board makes it easy to evaluate the TPSM84209 operation.
  • 4.5V to 28V Input Voltage Range
  • Up to 2.5A of Output Current
  • 1.2V to 6V Output Voltage Range
  • 4mm x 4.5mm QFN package

Design tools & simulation

SLVMCF1A.ZIP (101 KB) - PSpice Model
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 (...)
  • 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
  • (...)

CAD/CAE symbols

Package Pins Download
QFN-FCMOD (RKH) 9 View options

Ordering & quality

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