L6759D Datasheet, PDF (1/51 Pages) STMicroelectronics – Fully configurable through PMBus

L6759D
3+1 dual controller for VR12 with PMBus
Features
■ VR12 compliant with 25 MHz SVID bus Rev1.5
– SerialVID with programmable IMAX,
TMAX, VBOOT, ADDRESS
■ Second generation LTB Technology™
■ Flexible driver/DrMOS support
■ JMode support
■ Fully configurable through PMBus
■ Dual controller:
– 3-phase for VDDQ
– 1-phase for VTT
■ Single NTC design for TM, LL and Imon
thermal compensation
■ VFDE and GDC - gate drive control for
efficiency optimization
■ DPM - dynamic phase management
■ Dual remote sense
■ 0.5% output voltage accuracy
■ Full-differential current sense across DCR
■ AVP - adaptive voltage positioning
■ Dual independent adjustable oscillator
■ Dual current monitor
■ Pre-biased output management
■ Average and per-phase OC protection
■ OV, UV and FB disconnection protection
■ Dual VR_RDY
■ VFQFPN48 6x6 mm package
Application
■ DDR3 memory supply for VR12 servers
Datasheet − production data
VFQFPN48 - 6x6mm
Description
The L6759D is a dual controller designed to
power Intel’s VR12 processor memories: all
required parameters are programmable through
dedicated pin-strapping and PMBus interface.
The device features 3-phase programmable
operation for the multi-phase section and a single-
phase with independent control loops. Single-
phase (VTT) reference is always tracking multi-
phases (VDDQ) scaled by a factor of 2.
The L6759D supports power state transitions
featuring VFDE, programmable DPM and GDC
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 a VFQFPN48 6x6 mm
package.
Table 1. Device summary
Order code
Package
Packing
L6759D
L6759DTR
VFQFPN48 6x6mm
Tray
Tape and reel
May 2012
This is information on a product in full production.
Doc ID 023240 Rev 1
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