Product Lines arrow Computer Logic IC arrow Power Mgmt ICs
Power Management IC Overview
These power management ICs are used to manage the on/off of the power supplies of key components and sub-systems in a computer system, including CPU, DRAM, Graphics, High Speed I/O and USB, according to the ACPI specification. In addition, under-voltage condition (indicating fault on the supply line) is monitored and the main power supply (e.g. ATX) is shut-down to prevent damage to the system. Soft-start feature reduces stress on power supply components and increase product reliability.

  
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Key Features
Benefits
  • ACPI compliant power control
  • ATX Power Supply control
  • Soft-start Vdd
  • Under-voltage detection
  • Voltage Regulators for CPU, I/O, Graphics and DRAM Vdd
  • Timed Vdd on / off
  • Dedicated versions for specific CPU types
  • Meets ACPI specification
  • Low cost solution
  • Logic design reduces performance variation
    (c.f. analog-based controller)
  • System protection by under-voltage detection
  • Reduced in-rush current increases product life
Applications
  • Desktop PC Motherboards
  • X86 Servers
  • X86 Single-Board Industrial Computers

Product Selection Guide

Part Number
Description
Package
Datasheet
W83301DR-O
ACPI-STR Controller with DDR Bus Termination Regulator
TSSOP 24
Request
PDF
W83301R
ACPI-STR Controller with DDR Bus Termination Regulator
SOP 20
Request
PDF
W83303D
Advanced ACPI-STR Controller, I2C, DDR Bus Termination Regulator
LQFP 48
Request
PDF
W83304D
Advanced ACPI Controller for AMD K8
LQFP 48
W83304G
Advanced ACPI Controller for AMD K8, Pb-free
LQFP 48
W83305S
ACPI Controller; 2.5VRAM, 1.5VAGP; I2C; Power Network
SOP 14
W83305G
ACPI Controller; 2.5VRAM, 1.5VAGP; I2C; Power Network, Pb-free
SOP 14
W83310S
1.8 Amp DDR Bus Termination Regulator, over temp protection, Vout shutdown, short circuit protection
SOP 8
W83310SG
1.8 Amp DDR Bus Termination Regulator, over temp protection, Vout shutdown, short circuit protection, Pb-free
SOP 8
W83310DS-A
1.8 Amp DDR Bus Termination Regulator ,Vout shutdown, short circuit protection
SOP 8
W83310DG-A
1.8 Amp DDR Bus Termination Regulator, Vout shutdown, short circuit protection, Pb-free
SOP 8
W83310S-R
1.8 Amp DDR Bus Termination Regulator, Vout shutdown, short circuit protection, on-chip R-network
SOP 8
Request
PDF
W83310S-R2
1.8 Amp DDR Bus Termination Regulator, Vout shutdown, short circuit protection
SOP 8
W83310G-R2
1.8 Amp DDR Bus Termination Regulator, Vout shutdown, short circuit protection, Pb-free
SOP 8
W83310S-N
1.5 Amp DDR Bus Termination Regulator, Vout shutdown, short circuit protection, on-chip R-network
SOP 8
W83310G-N
1.5 Amp DDR Bus Termination Regulator, Vout shutdown, short circuit protection, on-chip R-network, Pb-free
SOP 8
W83310DS
2 Amp DDR Bus Termination Regulator; Vout shutdown, for Intel® Springdale GMCH-VTT, short circuit protection
SOP 8
Request
PDF
W83310DG
2 Amp DDR Bus Termination Regulator; Vout shutdown, for Intel® Springdale GMCH-VTT, short circuit protection, Pb-free
SOP 8
Request
PDF
W83310U
2Amp DDR Bus Termination Regulator; Vout shutdown, short circuit protection
TO-252
Request
PDF
W83310UG
2Amp DDR Bus Termination Regulator; Vout shutdown, short circuit protection, Pb-free
TO-252
Request
PDF
W83L350R
PCMCIA/PC Card single power interface switch
SSOP 16
Request
PDF
W83L351G
ExpressCardTM single power interface switch, Pb-free
TSSOP 20
Request
PDF
W83L351YG
W83L351YCG
ExpressCardTM single power interface switch, Pb-free
QFN 20
Request
PDF