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L6758A：High Performance (4+1) Dual Controller for VR12

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.

Key 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

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