Fairchild Semiconductor Announces the FAN5066 DC/DC Controller

Fairchild Semiconductor (San Jose, CA) has announced the FAN5066, a synchronous-mode monolithic dc/dc controller capable of providing an output voltage as low as 400mV. Driving external n-channel MOSFETs to deliver loads in excess of 19A from a 5V input, the FAN5066 is designed to meet the requirements of DDR SDRAM memory busses and low-voltage ASICs. The device is claimed to achieve a typical conversion efficiency of 85 percent.

The FAN5066’s output voltage is adjustable from 0.4V to 3.5V with a low-drift onboard voltage reference and a flexible oscillator. Regulation is +/- two percent of range.

The device features over-voltage protection and current limiting. Power-good and output-enable pins are included.

The FAN5066 is packaged in a 20-lead SOIC. Pricing is $1.06 in quantities of 1,000 pieces. Samples are currently available, with delivery in seven to eight weeks ARO.