L6759D datasheet(1/51 Pages) STMICROELECTRONICS

部品番号	L6759D

部品情報	Fully configurable through PMBus

PDF	51 Pages

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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1 / 51 page

This is information on a product in full production.

May 2012

Doc ID 023240 Rev 1

1/51

51

L6759D

3+1 dual controller for VR12 with PMBus

Datasheet

− production data

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

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

VFQFPN48 6x6mm

Tray

L6759DTR

Tape and reel

VFQFPN48 - 6x6mm

www.st.com

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