onsemi Special Purpose Regulators ADP3208AJCPZ-RL

The ADP3208AJCPZ-RL is a highly efficient, multiphase synchronous buck switching regulator controller designed for notebook power supplies, specifically optimized for high-performance Intel processors. It features integrated MOSFET drivers and supports selectable 1- or 2-phase operation with a switching frequency of up to 1 MHz per phase. The device guarantees a worst-case differential core voltage error of ¬±8 mV over temperature and includes an automatic power-saving mode to enhance efficiency during light load conditions. This regulator incorporates a 7-bit digitally programmable DAC that allows for output voltage adjustments between 0.3 V and 1.5 V, accommodating on-the-fly voltage identification (VID) changes. Additional features include soft transient control to minimize inrush current and audio noise, active current balancing between output phases, and independent current limit settings for design flexibility. The ADP3208AJCPZ-RL is specified for operation over an extended temperature range of 0¬8C to 100¬8C and comes in a compact 48-lead LFCSP package.