Summit Microelectronics Unveils SMM665 Controller

Summit Microelectronics Inc. (UK) unveiled the new SMM665 six-channel, active controller, which includes sequencing and margining functions that are suitable for applications such as networking and communications equipment where carrier-class availability is essential.

Utilizing the company's active dc output control (ADOC) engineering concept, the ADOC function maintains the output voltage of up to six dc/dc converters on the user's board, improving voltage accuracy in normal system use. The product can be configured to sequence up to six voltage supplies in any order during both power-up and power-down transitions. The sequencing can be set to cascade each supply as the prior supply completes its transition, therefore relieving the need to calculate the slew rate of each supply voltage depending on its loading, and specifying a safe delay time before the next supply can be actuated.

An evaluation card containing the SMM665 controller, six dc/dc converters, all required associated circuitry, and a port for "plug-and-play" programming via the SMX33200 dongle interface is available. Offered in a 48-pin, TQFP, surface-mount package, the product is priced at $9 in 10,000-unit quantities.