World’s smallest power system on a chip

NJ-based Enpirion has taken the wraps off what it says is the world’s smallest Power System on a Chip (PSoC) – and the world’s fastest synchronous buck converter.

The EN5330 device itself is the first of the company’s iPOWER line of integrated DC-to-DC converters for use in Point of Load (POL) applications including servers, personal computers, laser printers, set-top boxes, and telecommunications and data communications equipment.

It is claimed to be the first product to offer a 10x switching-frequency improvement over existing designs – integrating a PWM controller, output FETs and magnetic components into a single turnkey IC package with a standard TSSOP footprint.

The converter is housed in a Dual Flat No-lead (DFN) TSSOP footprint package that covers just over 100mm2 of board space. Including the minimum of three external components, the entire DC-to-DC converter can be placed in as little as 135mm2 of single-sided, or 102mm2 of double-sided board space and has a height profile of 2.2mm.

Operation from common voltage rails of 2.5V, 3.3V and 5V is achieved with an input voltage range from 2.375V to 6.5V. With up to 3A or 10W of output power, the output voltage is VID pin selectable with options for seven standard voltages (0.8V to 3.3V) and a resistor divider setting enabling a continuous set-point range from 0.8V to VIN.

The EN5330 can be used in a sequenced start-up with a programmable soft-start time and a separate enable function. Full protection functionality is offered with over-current, short-circuit, over-voltage, under-voltage and thermal shutdown features.The EN5330 is available now in standard and lead-free package options.

Pricing is $4.95 each for orders in 1,000 unit quantities, and product evaluation boards are available.

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