PM6764TR STMicroelectronics

PM6764, PM6766 VR12.5 digital multiphase controller with PMBus Data brief Applications High current power regulation for VR12.5 based Intel based microprocessors DDR memory power regulation for VR12.5 based Intel based systems VFQFPN28 4 x 4 mm VFQFPN40 5 x 5 mm Description The PM6764/66 is a high performance digital controller designed to power Intels VR12.5 Features processors (PM6766) and memories (PM6764): all required parameters are programmable PM6764: 4-phase compact digital controller through a PMBus interface. PM6766: 6-phase compact digital controller The device utilizes digital technology to VR12.5 compliant with 25 MHz SVID bus implement all control and power management rev. 1.2, serial-VID with programmable IMAX, functions to provide maximum flexibility and TMAX, VBOOT, ADDRESS performance. The NVM is embedded to store High-performance digital control loop (digital custom configurations. STVCOT) The PM6764/66 device features up to 4/6-phase Fully configurable through PMBus programmable operation. The PM6764/66 Flexible driver/DrMOS support supports power state transitions featuring VFDE, and programmable DPM maintaining the best Single NTC design for TM, LL and IMON efficiency over all loading conditions without thermal compensation compromising transient response. The device DPM - dynamic phase management assures fast and independent protection against Remote sense 0.5% Vout accuracy with load overcurrent, under/overvoltage and feedback calibration disconnections. The device is available in VFQFPN28 4 x 4 mm (PM6764) and VFQFPN40 Current sense across DCR with calibration 5 x 5 mm (PM6766) packages. Autocalibration capability for current and voltage sense Table 1. Device summary Programmable voltage positioning Order code Package Packing OV, UV and FB disconnection protection PM6764 Tray Embedded non-volatile memory (NVM) VFQFPN28 4 x 4 mm Black box recorder PM6764TR Tape and reel PM6764: VFQFPN28 4 x 4 mm package PM6766 Tray VFQFPN40 5 x 5 mm PM6766: VFQFPN40 5 x 5 mm package PM6766TR Tape and reel March 2014 DocID026061 Rev 1 1/3 For further information contact your local STMicroelectronics sales office. www.st.comRevision history PM6764, PM6766 Revision history Table 2. Document revision history Date Revision Changes 11-Mar-2014 1 Initial release. 2/3 DocID026061 Rev 1