RT9644A Description
The RT9644/A is a plete ACPI pliant power solution for DDR and DDR2 memory system with up to 4 DIMMs dual channel systems. This RT9644 includes one synchronous buck controller for DDR/DDR2 VDDQ, one DDR/DDR2 bus terminator VTT (equal to VDDQ/2) regulator with source and sinking ability, three LDO controllers for .. V GMCH (cascode), and GMCH/CPU terminat ion VTT_GMCH/CPU.