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DATASHEET
HIP6502B
Multiple Linear Power Controller with ACPI Control Interface
FN4871 Rev.0.00 May 2000
The HIP6502B complements either an HIP6020 or an HIP6021 in ACPI-compliant designs for microprocessor and computer applications. The IC integrates four linear controllers/regulators, switching, monitoring and control functions into a 20-pin SOIC package. One linear controller generates the 3.3VDUAL/3.3VSB voltage plane from the ATX supply’s 5VSB output, powering the south bridge and the PCI slots through an external pass transistor during sleep states (S3, S4/S5). A second transistor is used to switch in the ATX 3.3V output for operation during S0 and S1/S2 (active) operating states. Two linear controllers/regulators supply at choice either or both of the computer system’s 2.5V or 3.