LM27262

OBSOLETE LM27262 www.ti.com SNVS262C – MAY 2004 – REVISED SEPTEMBER 2011 LM27262 Intel CPU Core Voltage Regulator Controller for VRD10 Compatible PCs Check for Samples: LM27262 FEATURES 1 234 Compatible with “VRD10 Voltage Regulation Specification” for Intel Pentium 4 and Prescott Processors Supports Intel SpeedStep™ Technology ( Geyserville-III™), which Enables Real-Time Dynamic Switching of the CPU Core Voltage and the CPU Clock Frequency Uses External Gate Drivers (LM2724) for Maximum Layout Flexibility and Noise Immunity Fixed Frequency PWM Architecture Pin Selectable Internal or External Voltage Reference 0.5% Core Voltage Set-Point Accuracy when Using External Voltage Reference 0.9% Accurate Internal Bandgap Reference 2-, 3- or 4-Phase Operation Out-of-Phase Switching Reduces Input Ripple Current, Thereby Minimizing Input Capacitor Requirements VID-Code Programmable Output Voltage Range of 0.8375V through 1.6000V User Programmable, Low Loss, Load Line Slope User Programmable Standard VID Offset User Programmable VCORE Slew Rate 5V Power Rail Under Voltage Lock Out (UVLO) Over Voltage Protection (OVP), Under Voltage Protection (UVP), and Over Current Protection (OCP) to Defend Against Potentially Catastrophic Events User Programmable Fault Latch That Can Be Used to Disable the Regulator in the Event a Power System Fault Very Fast Transient Response VID-Transition Masked PWRGOOD Output True-Differential Current Sensing for Each P...