Date: 25/05/2010

Synchronous step-down DC/DC controller with PolyPhase operation

Linear Technology has introduced the LTC3856, a two-phase single output synchronous step-down DC/DC controller with PolyPhase operation, differential output voltage sensing and integrated phased-lock loop (PLL) synchronization. Up to 12 phases can be paralleled and clocked out of phase to minimize input and output filtering requirements for high current applications (up to 300A). The differential amplifier provides remote output voltage sensing of both the positive and negative terminals, enabling accurate regulation independent of IR losses in trace runs, vias and interconnects. It is useful in high current ASIC and FPGA supplies, power distribution buses, high power audio amplifiers and network servers.


Package: 38-lead SSOP or 32-lead 5mm x 5mm QFN

Operating temperature range: -40°C to 125°C

Price: starts at US$3.12 for 1000-pieces

For more information visit: http://www.linear.com/pr/3856.