Product overview
Description
The L6751C device is a universal digitally controlled dual PWM DC-DC designed to power Intel’s VR12 and AMD SVI processors and memories: all required parameters are programmable through dedicated pin-strapping and PMBus interface. The device features up to 6-phase programmable operation for multi-phase sections and a single-phase with independent control loops. When configured for memory supply, single-phase (VTT) reference is always tracking multi-phase (VDDQ) scaled by a factor of 2. The L6751C supports power state transitions featuring VFDE, programmable DPM and GDC maintaining the best efficiency over all loading conditions without compromising transient response. The device assures fast and independent protection against load overcurrent, under/overvoltage and feedback disconnections.
The device is available in WPLGA72 6 x 6 mm package.
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All features
- VR12 compliant with 25 MHz SVID bus rev. 1.5
- SerialVID with programmable IMAX, TMAX, VBOOT, ADDRESS
- AMD SVI compliant
- Second generation LTB Technology™
- Flexible driver/DrMOS support
- JMode support
- Fully configurable through PMBus™
- Dual controller:
- Up to 6 phases for CORE and memory
- 1 phase for graphics (GFX), system agent (VSA) or Northbridge (VDDNB)
- 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% VOUTaccuracy
- Full-differential current sense across DCR
- AVP - adaptive voltage positioning
- Dual independent adjustable oscillator
- Dual current monitor
- Pre-biased output management
- Average and per-phase OC protection
- OV, UV and FB disconnection protection
- Dual VR_RDY
- WPLGA72 6 x 6 mm package
- VR12 compliant with 25 MHz SVID bus rev. 1.5
EDA Symbols, Footprints and 3D Models
The STMicroelectronics team - L6751C
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