Data Brief

For further information contact your local STMicroelectronics sales office.

February 2008

Rev 1

1/3

3

L6750

for VR11.x and AMD6bit CPUs featuring I2C interface

Features

DCR

Sensing

Applications

workstation CPUs

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

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

VFQFPN48

Tape and reel

www.st.com