Description
The FAN5078D3 DDR memory regulator combines a highefficiency Pulse-Width Modulated (PWM) controller to generate the memory supply voltage, VDDQ, and a linear regulator to generate termination voltage (VTT).

FEATUREs
■ PWM regulator for VDDQ
■ Linear LDO regulator generates VTT = VDDQ/2, 1.5A peak sink/source capability
■ AMT / M-state support
■ Control to generate 5V USB
■ ACPI drive and control for 5V DUAL generation
■ 3.3V internal LDO for 3V-ALW generation
■ 300kHz fixed-frequency switching
■ RDS(ON) current sensing or optional current-sense resistor for precision over-current detect
■ Internal synchronous boot diode
■ Common Power-Good signal for all voltages
■ Input under-voltage lockout (UVLO)
■ Thermal shutdown
■ Latched multi-fault protection
■ Precision reference output for ULDO controllers
■ 24-pin 5x5mm MLP package

APPLICATIONs
■ DDR VDDQ and VTT voltage generation with ACPI support for DDR3
■ Memory Power Solutions for Desktop PCs
■ Memory Power Solutions for Servers