data brief for further information contact your local stmicroelectronics sales office. february 2008 rev 1 1/3 3 L6750 2 to 5 phase controller with ltb technology ? for vr11.x and amd6bit cpus featuring i2c interface features ltb technology ? to enhance load transient i2c power manager 2 to 5 scalable phase operation dual-edge asynchronous architecture flexible driver support psi# input and imon output for vr11.1 7/8 bit programmable output - vr10/11.x dac 6 bit programmable output - amd am2 dac 0.5 % output voltage accuracy full-differential current sense across inductor dcr integrated remote sense buffer adaptive voltage positioning (avp) 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 vfqfpn48 7x7 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 L6750 is a two-to-five phase controller designed to power intel?s most demanding piv 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. L6750 features power manager i2c to implement overspeeding and other power management options without using any external component. the device embeds selectable dac: output volt- age is programmable up to 1.6000v (intel vr10 and vr11.x dacs) or up to 1.550v (amd 6bit dac) managing dvid transitions with 0.5% out- put voltage accuracy over line, load and tempera- ture variations. the device assures fast protection against load over current, under / over voltage and feedback disconnections. low-side-less start-up allows soft-start over pre-biased output avoiding danger- ous current return through the main inductors as well as negative spike at the load side.L6750 is available in vfqfpn48 7x7 mm package vfqfpn48 - 7x7 mm table 1. device summary order code package packing L6750 vfqfpn48 tube L6750 tr vfqfpn48 tape and reel www.st.com www..net
revision history L6750 2/3 1 revision history table 1. document revision history date revision changes 14-feb-2008 1 initial release.
L6750 3/3 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2008 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
|
