ISL6505

ISL6505 OBSOLETE PRODUCT NO RECOMMENDED REPLACEMENT contact our Technical Support Center at 1-888-INTERSIL or www.intersil.com/tsc Multiple Linear Power Controller with ACPI Control Interface DATASHEET FN9109 Rev 3.00 Dec 1, 2005 The ISL6505 complements other power building blocks (voltage regulators) in ACPI-compliant designs for microprocessor and computer applications. The IC integrates three linear controllers/regulators, switching, monitoring and control functions into a 20-pin wide-body SOIC or 20-pin QFN (also known as MLF) 5x5 package. The ISL6505’s operating mode (active or sleep outputs) is selectable through two digital control pins, S3 and S5. 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 NPN pass transistor during sleep states (S3, S4/S5). In active state (during S0 and S1/S2), the 3.3VDUAL/3.3VSB linear regulator uses an external N-channel pass MO...