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Panasonic Component Saving Solution for CPU,Power Supply and FPGA solution.

Hello, nice to see you again!

Panasonic has posted a new video about polymer capacitor.

Panasonic Polymer Capacitors SP-Cap and POSCAP overview

This video includes some solutions and circuit examples for;

  • Server CPU power supply SP-Cap solution
  • SMPS(Switched-mode power supply)- POSCAP solution
  • FPGA solution

Here are some solutions for saving space on your PCB, including device count reduction.

Server CPU power supply SP-Cap solution.

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This solution explains about replacing the current MLCC with the SP-Cap (Conductive polymer Aluminum Electrolytic Capacitors.)
SP-Cap of 3-terminal type has the characteristic of low ESR (Equivalent series resistance) and ESL (Equivalent series inductance.)
If current low ESR capacitors replace to SP-Cap 6 pcs (EEFGX0D471 470μF/3mΩ/0.4nH), MLCC 33 pcs out of 80 pcs can reduce component count.
It can save the PC board space!


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This solution explains about replacing the current MLCC with the POSCAP (Conductive Polymer Tantalum solid Capacitors.)

  • POSCAP is small and thin capacitor and it has large capacitance.
  • This circuit has an area of 42.5mm2 using only MLCC 17 pcs.
  • POSCAP (2R5TPG220M 220μF/2.5V) has advantage of thin 1.2mm max height which mountable on the back of circuit board, and it can reduce MLCC 13 pcs, and circuit area is 10mm2.
  • The circuit area is reduced by 76%!

FPGA Solution

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This solution explains about replacing the current MLCC with the SP-Cap or POSCAP. The Current circuit has an area of 230mm2 using MnO2 Tantalum 7 pcs and MLCC 2 pcs. All you need for this design is only one of the SP-Cap (EEFGX0D561 560μF/2V), and circuit area is 31.4mm2! To reduce further circuit area, using POSCAP 3 pcs. The Circuit area is 29.2mm2.

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