PM6764 Datasheet, PDF (1/3 Pages) STMicroelectronics – Current sense across DCR with calibration

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