(ACTIVE) 1.5A, 28V Input, 5V Output TO-220 Power Module


Functional diagram


The TPSM842xx power module is an easy-to-use integrated power solution that combines a 1.5-A DC/DC converter with power MOSFETs, an inductor, and passives into a 3-pin, through-hole package. This total power solution requires adding only input and output capacitors and eliminates the loop compensation and magnetics part selection from the design process.

The standard TO-220 pin-out allows a much improved replacement of linear regulators packaged in this industry standard footprint. The TPSM842xx devices provide much higher efficiency without the need of a heatsink.


  • Complete Integrated Power Solution
  • 3-Pin TO-220 Footprint
  • Efficiencies up to 95%
  • Fixed Output Voltage Options:
    3.3 V, 5 V, and 12 V
  • 400-kHz Switching Frequency
  • Advanced Eco-mode™ Pulse Skip
  • Pre-bias Output Start-up
  • Over-Current Protection
  • Output Over-Voltage Protection
  • Thermal Shutdown
  • Operating Junction Range: –40°C to +125°C
  • Operating Ambient Range: –40°C to +85°C
  • Meets EN55022 Class B Emissions
  • Create a Custom Design Using the TPSM84203 with the WEBENCH® Power Designer

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Iout (Max) (A) 1.5   
Vin (Min) (V) 7   
Vin (Max) (V) 28   
Vout (Min) (V) 5   
Vout (Max) (V) 5   
Soft Start Fixed   
Features EMI Tested^Light Load Efficiency^Spread Spectrum   
Regulated Outputs (#) 1   
Package Size: mm2:W x L (PKG) 3SIP MODULE: 110 mm2: 10 x 11(SIP MODULE)   
Switching Frequency (Max) (kHz) 510   
Switching Frequency (Min) (kHz) 290   
Switching Frequency (Typ) (kHz) 400   
Topology Buck^Synchronous Buck   
Operating Temperature Range (C) -40 to 125   
Pin/Package 3SIP MODULE   

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