L6756D datasheet(1/36 Pages) STMICROELECTRONICS

部件名	L6756D

功能描述	2/3/4 phase buck controller for VR10, VR11 and VR11.1 processor applications

PDF	36 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 36 page

October 2008

Rev 1

1/36

1

L6756D

2/3/4 phase buck controller

for VR10, VR11 and VR11.1 processor applications

Features

■ LTB Technology® enhances load transient

response

■ 2 to 4 scalable phase operation

■ Dual-edge asynchronous architecture

■ PSI# input with programmable strategy

■ Imon output

■ Flexible driver support

■ 7/8 bit programmable output - VR10/11.1 DAC

■ 0.5% output voltage accuracy

■ Full-differential current sense across DCR

■ Integrated remote sense buffer

■ Feedback disconnection protection

■ Adjustable oscillator from 100 kHz to 1 MHz

■ LSLess startup to manage pre-biased output

■ Programmable soft-start

■ Threshold sensitive enable pin for VTT

Sensing

■ VFQFPN40 6x6 mm package

Applications

■ High-current VRM / VRD for desktop / server /

workstation CPUs

■ Graphic cards

■ Low-voltage, high-current power supplies

■ High-density DC / DC converters

Description

L6756D is a two-to-four phase controller designed

to power Intel’s most demanding processors and,

most in general, low-voltage, high-current power

supplies. The device features LTB Technology® to

provide the fastest response to load transients

thus minimizing the output

filter composition.

L6756D embeds selectable DAC: output voltage

is programmable up to 1.6000 V (Intel VR10 and

VR11.x DACs) managing DVID transitions with

±0.5% output voltage accuracy over line, load and

temperature variations.

The device assures fast protection against load

over current and under / over voltage. Feedback

disconnection prevents from damaging the load in

case of misconnections in the system board.

Low-side-less start-up allows soft-start over pre-

biased output avoiding dangerous current return

through the main inductors as well as negative

spike at the load side.

L6756D is available in VFQFPN 6x6 mm package

VFQFPN40 6x6 mm

Table 1.

Device summary

Order code

Package

Packing

L6756D

VFQFPN40

Tube

L6756DTR

VFQFPN40

Tape and reel

www.st.com

类似零件编号 - L6756D

制造商	部件名	数据表	功能描述
STMicroelectronics	L6756	48Kb / 3P	2/3/4 phase buck controller for VR10, VR11.1 and AM2 processor applications 15-Feb-2008
STMicroelectronics	L6756TR	48Kb / 3P	2/3/4 phase buck controller for VR10, VR11.1 and AM2 processor applications 15-Feb-2008

More results

类似说明 - L6756D

制造商	部件名	数据表	功能描述
Intersil Corporation	ISL6312	748Kb / 35P	Four-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR10, VR11, and AMD Applications February 14, 2007
ON Semiconductor	NCP5382	349Kb / 33P	2/3/4/5/6 Phase Buck Controller for VR10 and VR11 Pentium IV Processor Applications March, 2007 ??Rev. 0
STMicroelectronics	L6756	48Kb / 3P	2/3/4 phase buck controller for VR10, VR11.1 and AM2 processor applications 15-Feb-2008
ON Semiconductor	NCP5381A	401Kb / 34P	2/3/4 Phase Buck Controller for VR10 and VR11 Pentium IV Processor Applications August, 2006 ??Rev. 4
	NCP5385	474Kb / 34P	2/3/4 Phase Buck Controller for VR10 and VR11 Pentium IV Processor Applications October, 2008 ??Rev. 2
	NCP5388	334Kb / 34P	2/3/4 Phase Buck Controller for VR10 and VR11 Pentium IV Processor Applications April, 2007 ??Rev. 3
	NCP5389	478Kb / 28P	2/3 Phase Buck Controller for VR11 Pentium IV Processor Applications October, 2008 ??Rev. 2
	NCP5391	359Kb / 26P	2/3 Phase Buck Controller for VR11 Pentium IV Processor Applications July, 2007 - Rev. 1
Intersil Corporation	ISL6312ACRZ	1Mb / 36P	Four-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR10, VR11, and AMD Applications January 22, 2015
Renesas Technology Corp	ISL6312A	1Mb / 36P	Four-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR10,VR11, and AMD Applications