Apply for the development board now

A revolutionary chip that allows for up to 50% volume reduction of input bulk capacitors in PSUs

Another find from the halls of Electronica, Mr. X marvels at the MinE-CAP IC from Power Integrations, a jaw-dropping piece of power-electronics sorcery enabled by their PowiGaN technology. As well as dramatically reducing the size of the required input capacitors of a power supply, without compromising output ripple or operating efficiency, MinE-CAP also precisely manages inrush current when the supply is connected to the mains, eliminating the need for dissipative NTCs or large slow-blow fuses as I2t stress on input components is dramatically reduced.

Partnered with Power Integrations’ InnoSwitch IC family, MinE-CAP allows for the lowest component count, ultra-compact AC-DC converters without redesign of the transformer. This enables an adaptor size reduction of up to 40% whilst avoiding the EMI and dissipation challenges associated with traditional high-frequency SMPS designs. The device itself comes in a modest 11.32 x 5.67 x 1.94 mm (including leads) MinSOP-16A package.

MinE-CAP is a perfect component for use in applications requiring an extended wide-range input (90-350 VAC), such as consumer electronics and laptop PSUs, USB chargers, and home appliances. With such flexibility on the inputs, you’ll be glad to know that MinE-CAP also offers protection against output open loop, output overvoltage, output short circuit, output undervoltage, and overtemperature; the operating range of the MinE-CAP is -40°C to +150°C.

Power Integrations provides a great many designs on their website for you to test the MinE-CAP, but their RDK-928 Reference Design Kit provides a readily available product for engineers to see the MinE-CAP in action, as well as Power Integrations’ PowiGaN-based InnoSwitch4-CZ and ClampZero devices. The RDK-928 is a 60 W ultra-compact USB PD 3.0 charger designed for mobile phones and laptop computers. It uses a flyback topology and accepts a universal input (90-265 VAC) with a variable output voltage of 5, 9, 15, or 20 VDC, all at 3 A max current. The miniscule 45 x 45 mm profile illustrates the vast reduction in size enabled by MinE-CAP and Power Integrations’ other devices; a typical 60 W charger stands at 74 x 74 mm. The no-load power of 60 mW and 93% efficiency clarifies the superior performance of the device despite the dramatic size reduction.

Keep designing!

Power Integrations RDK-928 60 W PSU for Evaluating MinE-CAP

Want to dramatically shrink the size of your PSUs?

Apply for the development board now

Sorry about the noise… we’re changing the industry!

Discover why ipXchange is the no-brainer choice for evaluating new components. Please contact Guy or Rhianna.

Get industry related news

Sign up for our newsletter and get news about the latest development boards direct to your inbox.

We care about the protection of your data. Read our Privacy Policy.