TPSM84209 4.5-V to 28-V input, 1.2-V to 6-V output, 2.5-A power module |

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



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.


  • 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

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WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPSM84209

  Min   Max Range
Vin  V 4.5 to 28.0V
Vout  V 1.2 to 6V
Iout  A ≤ 2.5A
Ambient Temp  °C -40 to 85°C


Compare all products in Buck modules (integrated inductor) Email Download to Excel
Part number Order Iout (Max) (A) Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Soft start Features Iq (Typ) (mA) Regulated outputs (#) Package size: mm2:W x L (PKG) Switching frequency (Max) (kHz) Switching frequency (Min) (kHz) Switching frequency (Typ) (kHz) Topology Operating temperature range (C) Duty cycle (Max) (%) Package Group Type
TPSM84209 Order now 2.5     4.5     28     1.2     6     Fixed     EMI Tested     0.045     1     9QFN-FCMOD: 18 mm2: 4 x 4.5 (QFN-FCMOD | 9)     923     578     750     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 85     100     QFN-FCMOD | 9     Module