phase controller. L6750 Datasheet

L6750 controller. Datasheet pdf. Equivalent

Part L6750
Description 2 to 5 phase controller
Feature L6750 2 to 5 phase controller with LTB technology® for VR11.x and AMD6bit CPUs featuring I2C interfa.
Manufacture STMicroelectronics
Datasheet
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L6750
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L6750
2 to 5 phase controller with LTB technology®
for VR11.x and AMD6bit CPUs featuring I2C interface
Data Brief
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
VFQFPN48 - 7x7 mm
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
Table 1.
Device summary
Order code
L6750
L6750TR
Package
VFQFPN48
VFQFPN48
Packing
Tube
Tape and reel
February 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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L6750
Revision history
1 Revision history
Table 1. Document revision history
Date
Revision
14-Feb-2008
1 Initial release.
Changes
L6750
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