New Industry Products

Fairchild Releases Single-Supply 6A Synchronous Buck Regulator

March 22, 2009 by Jeff Shepard

Fairchild Semiconductor states that it is offering designers of telecom, graphic cards and consumer electronics a single supply, highly integrated 6A synchronous buck solution that is said to enable designers to reach higher levels of efficiency in less space. The FAN21SV06 incorporates a controller, driver and optimized power MOSFETs in a compact 5 x 6mm MLP footprint. This small package is said to offer over 40% space savings compared to a discrete implementation.

The TinyBuck™ device is also said to be more energy efficient, and to provide up to 95% efficiency compared to alternate solutions. To accommodate the needs of a wide variety of non-isolated dc-dc designs, the FAN21SV06 offers a broad input operating range from 6.5 to 24V.

This buck regulator features a pre-bias startup to regulate the output cap discharge during soft-start conditions, protecting the system ICs from damage It offers a suite of protection features including soft start, under voltage lockout (UVLO), thermal shutdown, over voltage and over current protection to protect the system from fault conditions.

The FAN21SV06 also has a sync pin allowing synchronization to an external clock, which reduces input ripple in the system and decreases the costs of the input capacitors. This sync pin enables the system to operate more than one FAN21SV06 in a master/slave configuration and minimizes EMI-related issues.

The devices are priced (each, 1000 pieces) at $1.50, with a delivery of 8-10 weeks ARO.