ADP3208AJCPZ

Product Summary

The ADP3208AJCPZ is a highly efficient, multiphase, synchronous buck switching regulator controller. With its integrated drivers, the ADP3208AJCPZ 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 relationship of the output signals ensures interleaved 2-phase operation. The applications of the ADP3208AJCPZ include Notebook power supplies for next-generation Intel processors.

Parametrics

ADP3208AJCPZ absolute maximum ratings: (1)VCC, PVCC1, PVCC2: -0.3 V to +6 V; (2)FBRTN, PGND1, PGND2: -0.3 V to +0.3 V; (3)BST1, BST2, DC: -0.3 V to +25 V; t < 200 ns: -0.3 V to +30 V ; (4)BST1 to SW1, BST2 to SW2: -0.3 V to +6 V; (5)DRVH1, DRVH2, SW1, SW2, DC: -5 V to +20 V; t < 200 ns: -10 V to +25 V; (6)DRVH1 to SW1, DRVH2 to SW2: -0.3 V to +6 V; (7)DRVL1 to PGND1, DRVL2 to PGND2, DC: -0.3 V to +6 V; T < 200 ns: -5V to +6V; (8)RAMP (in Shutdown), DC: -0.3 V to +20 V; t < 200 ns: -0.3 V to +25 V; (9)All Other Inputs and Outputs: -0.3 V to +6 V; (10)Storage Temperature: -65 to +150℃; (11)Operating Ambient Temperature Range: 0 to 100℃; (12)Operating Junction Temperature: 125℃; (13)Thermal Impedance (θJA) 2-Layer Board: 40℃/W.

Features

ADP3208AJCPZ features: (1)Single-chip solution: Fully compatible with the Intel IMVP-6+ specifications; Integrated MOSFET drivers; (2)Selectable 1- or 2-phase operation with up to 1 MHz per phase switching frequency; (3)Guaranteed ±8 mV worst-case differentially sensed core voltage error over temperature; (4)Automatic power-saving mode maximizes efficiency with light load during deeper sleep operation; (5)Soft transient control reduces inrush current and audio noise ; (6)Active current balancing between output phases; (7)Independent current limit and load line setting inputs for additional design flexibility; (8)Built-in power good blanking supports voltage identification (VID) on-the-fly transients; (9)7-bit, digitally programmable DAC with 0.3 V to 1.5 V output; (10)Short-circuit protection with programmable latch-off delay; (11)Clock enable output delays the CPU clock until the core voltage is stable; (12)Output power or current monitor options; (13)48-lead LFCSP; (14)ADP3208A version has 1.0V Boot voltage.

Diagrams