L6717 datasheet(1/56 Pages) STMICROELECTRONICS

部品番号	L6717

部品情報	High-efficiency hybrid AM2r2 controller with I2C interface and embedded drivers

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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 / 56 page

March 2010

Doc ID 17326 Rev 1

1/56

56

L6717

High-efficiency hybrid AM2r2 controller

with I2C interface and embedded drivers

Features

■ Hybrid controller for both PVI and SVI CPUs

■ Dual controller with 2 embedded high current

drivers + 2 PWM for external driver for CPU

CORE and 1 embedded high current driver for

CPU NB

■ Dynamic phase management (DPM)

■ I2C interface to control offset, switching

frequency and power management options

■ Dual-edge asynchronous architecture with LTB

technology®

■ PSI management to increase efficiency in light-

load conditions

■ Dual overcurrent protection: Total and per-

phase

■ Accurate voltage positioning

■ Dual remote sense

■ Feedback disconnection protection

■ Programmable OV protection

■ Oscillator internally fixed at 200 kHz externally

adjustable

■ LSLess startup to manage pre-biased output

■ VFQFPN48 Package

Applications

■ Hybrid high-current VRM / VRD for desktop /

Server / Workstation / IPC CPUs supporting

PVI and SVI interface

■ High-density DC / DC converters

Description

L6717 is a hybrid CPU power supply controller

embedding 2 high-current drivers for the CORE

section and 1 driver for the NB section - requiring

up to 2 external drivers when the CORE section

works at 4 phase to optimize the application over-

all cost.

I2C interface allows to manage offset both CORE

and NB sections, switching frequency and

dynamic phase management saving in

component count, space and power consumption.

Dynamic phase management automatically

adjusts phase-count according to CPU load

optimizing the system efficiency under all load

conditions.

The dual-edge asynchronous architecture is

optimized by LTB technology

®

allowing fast load-

transient response minimizing the output

capacitor and reducing the total BOM cost.

Fast protection against load over current is

provided for both the sections. Feedback

disconnection protection prevents from damaging

the load in case of disconnections in the system

board.

L6717 is available in VFQFPN48 package.

VFQFPN48

Table 1.

Device summary

Order codes

Package

Packing

L6717

VFQFPN48

Tray

L6717TR

Tape and reel

www.st.com

同様の部品番号 - L6717

メーカー	部品番号	データシート	部品情報
STMicroelectronics	L6717A	1Mb / 57P	Dynamic phase management 22-Apr-2013
STMicroelectronics	L6717ATR	1Mb / 57P	Dynamic phase management 22-Apr-2013

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