ACPI Controller

Part No. W83305G
Datasheet   W83305G.pdf
Description W83305G is a power management IC which compliant ACPI specification 2.0 for desktop PC and motherboard. The chip regulates two most voltage-relative powers for DDR SDRAM and AGP slot applications. As the two devices on board, a stable, reliable, and programmable power should be performed for higher reliability, stability, compatibility and better-performance for diverse combination of devices (RAM module and AGP card). The chip is operated basing on a simple dual-wire bus SMBus. Via SMBus control, the power for DDR SDRAM can be adjusted ranging from 2.50V to 3.00V; and the power for AGP slot can be adjusted ranging from 1.50V to 2.00V with 50mV/step. Besides for safety consideration, linear under voltage and soft-start are applied on the two regulated powers. With design of W83305G, a cost-effective, sample, modular, stable, reliable, flexible and high-performance power solution is provides for the motherboard and desktop PC design
Features
  • Programmable 2.55VSTR Power for DDR SDRAM
  • Programmable 1.55VCC Power for AGP Slot
  • I²C Interface
  • Internal Charge Pump Support Voltage Up to 9.5V
  • Drive All N-Channel MOSFET
  • Soft Start
  • Under-Voltage Protection for VAGP, VRAM
  • Small footprint package 14-SOP 150mil
  • Soft Start
Diagram N/A
Package 14 SSOP
Other Files N/A
Development Tools N/A
Others N/A

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