ADP  -  Series DataSheet
ADP3212MNR2G  -  7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller  -  ON Semiconductor  -  DC-DC Controllers

FEATURES
Single-chip solution
Fully compatible with the Intel® IMVP-6.5™ specifications
Selectable 1- , 2-, or 3-phase operation with up to 1 MHz per
phase switching frequency
Phase 1 and Phase 2 Integrated MOSFET drivers
Input Voltage Range of 3.3 V to 22 V
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
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 QFN 7x7mm (ADP3212)

APPLICATIONS
Notebook power supplies for next-generation Intel processors

GENERAL DESCRIPTION
The ADP3212 is a highly efficient, multiphase, synchronous buck switching regulator controller. With its integrated drivers, the ADP3212 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 ADP3212 is programmable for 1-, 2-, or 3-phase operation. The output signals ensure interleaved 2- or 3-phase operation.
The ADP3212 uses a multimode architecture run at a programmable switching frequency and optimized for efficiency depending on the output current requirement. The ADP3212 switches between single- and multi-phase operation to maximize efficiency with all load conditions. The chip includes a programmable load line slope function to adjust the output voltage as a function of the load current so that the core voltage is always optimally positioned for a load transient. The ADP3212 also provides accurate and reliable shortcircuit protection, adjustable current limiting, and a delayed power-good output. The IC supports on-the-fly output voltage changes requested by the CPU.
The ADP3212 are specified over the extended commercial temperature range of -40°C to 100°C. The ADP3212 is available in a 48-lead QFN 7x7mm 0.5 mm pitch package.