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DATASHEET
HIP6500B
Multiple Linear Power Controller with ACPI Control Interface
FN4870 Rev 0.00 May 2000
The HIP6500B complements either an HIP6020 or an HIP6021 in ACPI-compliant designs for microprocessor and computer applications. The IC integrates two linear controllers and two regulators, switching, monitoring and control functions into a 20-pin SOIC package. One linear controller generates the 3.3VDUAL voltage plane from the ATX supply’s 5VSB output, powering 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. The second linear controller supplies the computer system’s 2.5V/3.