W83301DR-O - Winbond

W83301DR-O ACPI-STR Controller

The W83301DR-O is an ACPI-compliant controller for microprocessor and other computer applications. The part provides functions - two switch controllers to generate a 5VDL and a 3.3 VDL voltage from ATX power supply; a linear controller – STR1 (2.5VDUAL), and a bus termination controller – STR2 (1.25 VDUAL) for high-speed bus such as RDRAM/DDRAM current sinki.

Features

Provides various voltages for DDR-STR applications Provide a switch controller to generate 5VDUAL voltage Provide a switch controller to generate 3.3VDUAL voltage Linear controller STR1
  –2.5VDUAL for DDR application Bus termination controller STR2
  –1.25VDUAL for high speed bus termination to sink and drive redundant current Provide a switch 5VDLEN pin to enable/disable 5VDL output in S5 state for USB application Supports DDR ACPI-STR Functions Drives all N-Channel MOSFETs Power-Up Softstart for all controllers Up to 0.4V/0.2V incremental voltage on STR1/STR2 for over-clocking application. Under.