L6758A Datasheet, PDF (1/42 Pages) STMicroelectronics – DPM - dynamic phase management

L6758A
High performance (4+1) dual controller for the VR12
VFQFPN48 - 6x6 mm
Features
• VR12 compliant with 25 MHz SVID bus rev 1.5
– serialVID with programmable IMAX, TMAX,
VBOOT, ADDRESS
•
™
Second generation LTB Technology
• Dual controller:
– two-to-four phase for core
– 1 phase for graphics (GFX) or system
agent (VSA)
• Single NTC design for TM, LL and IMON
thermal compensation (for each section)
• VFDE and GDC - gate drive control for
efficiency optimization
• DPM - dynamic phase management
• Dual remote sense
• 0.5% output voltage accuracy
• Fully-differential current sense across DCR
• AVP - adaptive voltage positioning
• Dual independent adjustable oscillator
• Dual current monitor
• Pre-biased output management
• 5 V supply, 12 V monitor
• Average and per-phase OC protection
• OV, UV and FB disconnection protection
• Dual VR_RDY
• VFQFPN48 6x6 mm package
Datasheet - production data
Applications
• High-current VRM / VRD for desktops / servers
/ workstations / new generation CPUs
Description
L6758A is a dual controller designed to
®
power Intel VR12 processors: all required
parameters are programmable through dedicated
pinstrapping.
The device features two-to-four phase
programmable operation for multi-phase sections
and a single-phase with independent control
loops. Both sections feature second generation
LTB Technology to provide fast load transient
response, minimizing and optimizing the output
filter composition.
The L6758A supports power state transitions
featuring VFDE, programmable DPM and GDC,
maintaining the best efficiency over all loading
conditions without compromising transient
responses. The device assures fast and
independent protection against load overcurrent,
under/overvoltage and feedback disconnections.
The device is available in VFQFPN48 package.
Table 1. Device summary
Order code
Package
Packaging
L6758A
L6758ATR
VFQFPN48 6x6 mm
VFQFPN48 6x6 mm
Tray
Tape and
reel
July 2013
This is information on a product in full production.
DocID023298 Rev 2
1/42
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