Power Supply In Package (PSiP)

Part Number Information
Part #: Price/Availability:
NN31000A-BB Buy Now
NN31001A-BB Buy Now
NN31002A-BB Buy Now

Panasonic is pleased to introduce the NEW NN3100xA Series Power Supply in Package (PSiP). Featuring a small 8.5 x 7.5 x 4.7mm QFN package, the NN3100xA Series is a single channel, synchronous DC-DC step down regulator PSiP. As a single chip solution, this series integrates a Controller IC that employs a hysteretic control system, two Power MOSFETs, an Inductor and Capacitors.

With a very small footprint and the integration of external components, the NN3100xA Series offers compact and simplified solutions for applications requiring point-of-load design. The number of external components have been reduced to only input/output capacitors, a slow start capacitor and feedback resistors.

For applications requiring an output voltage of 1.0 V / 3.3 V, the external feedback resistors can be eliminated, resulting in an even smaller footprint. The NN3100xA Series achieves efficiencies of greater than 94% with low power consumption and low heat generation.



  • The PSiP NN 3100 series is a synchronous DC-Dc step down regulator module with integrated MOSFETS, inductor and capacitors which employ a hysteric control system.
  • The module is very small at 8.5mm x 7.5mm 4.7mm(H) in a QFN package.
  • There are 3 versions based on the output current of 4A, 7A and 10A with excellent efficiency of 95% (at Vin 12V, Vout 3.2V at 4A), and supports a wide range of Input Voltages (4.5V~28V) and Output Voltages (0.6V~5.5V).


  • DSP and FPGA Point-of-Load Applications
  • Routers
  • Computer Servers
  • Surveillance Cameras