Beta Dyne Inc. (Bridgewater, MA) introduced its new SR50 switching regulator, which is a family of five-bit, adjustable, synchronous, non-isolated, step-down, dc-dc converters designed for CPU power. The SR50 is suitable for use in desktop computers, notebook and palmtop computers, personal digital assistants, mobile Intel® Pentium® II and III CPUs, low-voltage adjustable power supplies, and reference supplies for DDR SDRAM.
The SR50's nominal input voltage ranges from 3.3V to 12V, with standard input voltages of 3.3V, 5V and 12V. The output voltage can be programmed by any one of six different voltage identification (VID) codes to conform to VRM 8.1 to 8.4 output voltage, or be set to any other customer-specified programmable output within 0.9V to 5V. The standard output VID programmable range is 0.9V to 2V, 1.3V to 3.5V and 1.7V to 5V. The SR50's synchronous rectifiers operate at 400kHz switching frequency.
Encased in an anodized aluminum heatsink, the SR50 package size measures 2.6in x 1.1in x 0.52in (66.04mm x 27.94mm x 13.21mm). Units are available in four to six weeks ARO. Pricing for the SR50 starts at $69 each; discounts available for larger quantities.
