7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller ADP3208A
FEATURES
Single-chip solution Fully c...
7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller ADP3208A
FEATURES
Single-chip solution Fully compatible with the Intel® IMVP-6+™ specifications Integrated
MOSFET drivers Selectable 1- or 2-phase operation with up to 1 MHz per phase switching frequency Guaranteed ±8 mV worst-case differentially sensed core
voltage error over temperature Automatic power-saving mode maximizes efficiency with light load during deeper sleep operation Soft transient control reduces inrush current and audio noise Active current balancing between output phases Independent current limit and load line setting inputs for additional design flexibility Built-in power good blanking supports
voltage identification (VID) on-the-fly transients 7-bit, digitally programmable DAC with 0.3 V to 1.5 V output Short-circuit protection with programmable latch-off delay Clock enable output delays the CPU clock until the core
voltage is stable Output power or current monitor options 48-lead LFCSP ADP3208A version has 1.0V Boot
voltage General Description
The ADP3208 is a highly efficient, multiphase, synchronous buck switching regulator controller. With its integrated drivers, the ADP3208 is optimized for converting the notebook battery
voltage into the core supply
voltage required by high performance Intel processors. An internal 7-bit DAC is used to read a VID code directly from the processor and to set the CPU core
voltage to a value within the range of 0.3 V to 1.5 V. The phase relationsh...