L6716QTR [STMICROELECTRONICS]

2/3/4 phase controller with embedded drivers for Intel VR11.1;


型号：	L6716QTR
厂家：	ST
描述：	2/3/4 phase controller with embedded drivers for Intel VR11.1 稳压器开关式稳压器或控制器电源电路开关式控制器驱动
文件：	总3页 (文件大小：49K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

L6716

2/3/4 phase controller with embedded drivers for Intel VR11.1

Data Brief

Features

■ Load transient boost LTB Technology™ to

minimize the number of output capacitors

■ 2 or 3-phase operation with internal driver

■ 4-phase operation with external PWM driver

signal

VFQFPN48 7 mm x 7 mm

(exposed pad)

■ PSI input with programmable strategy

■ Imon output

■ 0.5 % output voltage accuracy

Description

■ 8 bit programmable output up to 1.60000 V -

Intel VR11.1 DAC - backward compatible with

VR10/VR11

The device implements a two-to-four phases step-

down controller with three integrated high current

drivers in a compact 7x7 mm body package with

exposed pad.

■ Full differential current sense across inductor

■ Differential remote voltage sensing

■ Adjustable voltage offset

Load transient boost LTB Technology™ reduces

system cost by providing the fastest response to

load transition therefore requiring less bulk and

ceramic output capacitors to satisfy load transient

requirements.

■ LSLess startup to manage pre-biased output

■ Feedback disconnection protection

■ Preliminary over voltage protection

■ Programmable over current protection

■ Programmable over voltage pretection

■ Adjustable switching frequency

The device embeds VR11.x DACs: the output

voltage ranges up to 1.60000 V managing D-VID

with 0.5 % output voltage accuracy over line

and temperature variations.

■ SS_END and OUTEN signal

The controller assures fast protection against load

over current and under / over voltage (in this last

case also before UVLO). Feedback disconnection

prevents from damaging the load in case of

disconnections in the system board.

■ VFQFPN48 7 mm x 7 mm package with

exposed pad

Applications

In case of over-current, the system works in

constant current mode until UVP.

■ High current VRM/VRD for desktop / server /

workstation CPUs

■ High density DC-DC converters

Table 1.

Device summary

Order codes

Package

VFQFPN48 7 mm x 7 mm

Packaging

L6716

Tube

L6716TR

Tape and reel

May 2008

Rev 1

1/3

For further information contact your local STMicroelectronics sales office.

www.st.com

Revision history

L6716

Revision history

Table 2.

Date

2-May-2008

Document revision history

Revision

Changes

Initial release

2/3

L6716

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