L6706 datasheet(1/47 Pages) STMICROELECTRONICS

Part #	L6706

Description	High output voltage accuracy

PDF	47 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 47 page

January 2010

Doc ID 15698 Rev 2

1/47

47

L6706

VR11.1 single phase controller with integrated driver

Features

■ 8-bit programmable output up to 1.60000 V -

Intel® VR11.1 DAC

■ High current embedded driver

■ High output voltage accuracy

■ Programmable droop function

■ Imon output

■ Load transient boost LTB Technology™ to

minimize the number of output capacitors

■ Full differential current sense across inductor

■ Differential remote voltage sensing

■ Adjustable voltage offset

■ LSLess startup to manage pre-biased output

■ Feedback disconnection protection

■ Preliminary overvoltage protection

■ Programmable overcurrent protection

■ Programmable overvoltage protection

■ Adjustable switching frequency

■ SSEND and OUTEN signal

■ VFQFPN-40 6x6 mm package with exp. pad

Applications

■ VTT and VAXG rails

■ CPU power supply

■ High density DC/DC converters

Description

The device implements a single phase step-down

controller with integrated high current driver in a

compact 6x6 mm body package with exposed

pad.

The device embeds VR11.x DACs: the output

voltage ranges up to 1.60000 V managing D-VID

with high output voltage accuracy over line and

temperature variations.

Imon capability guarantee full compatibility with

VR11.1 enabling additional power saving

technique.

Programmable droop function allows to supply all

the latest Intel CPU rails.

Load transient boost LTB Technology™ reduces

system cost by providing the fastest response to

load transition.

The controller assures fast protection against load

over current and under / over voltage. Feedback

disconnection prevents from damaging the load in

case of disconnections in the system board.

In case of over-current, the system works in

constant current mode until UVP.

VFQFPN-40 6 x 6 mm

Table 1.

Device summary

Order codes

Package

Packing

L6706

VFQFPN-40

Tray

L6706TR

Tape and reel

www.st.com

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