L6751B - STMicroelectronics

L6751B Digitally controlled dual PWM

The L6751B 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 pinstrapping and PMBus interface. The device features up to 6-phase programmable operation for the multi-phase section and a singlephase with independent control loops. Wh.

Features

■ VR12 compliant with 25 MHz SVID bus rev1.5
  – 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% Vout accuracy
■ Full-differ.