ISL6506

DATASHEET ISL6506, ISL6506A, ISL6506B Multiple Linear Power Controller with ACPI Control Interface FN9141 Rev 7.00 Nov 10, 2015 The ISL6506 complements other power building blocks (voltage regulators) in ACPI-compliant designs for microprocessor and computer applications. The IC integrates the control of the 5VDUAL and 3.3VDUAL rails into an 8 Ld EPAD SOIC package. The ISL6506 operating mode (active outputs or sleep outputs) is selectable through two digital control pins; S3 and S5. A completely integrated linear regulator generates the 3.3VDUAL voltage plane from the ATX supply’s 5VSB output during sleep states (S3, S4/S5). In active states (during S0 and S1/S2), the ISL6506 uses an external N-Channel pass MOSFET to connect the outputs directly to the 3.3V input supplied by an ATX power supply, for minimal losses. The ISL6506 powers up the 5VDUAL plane by switching in the ATX 5V output through an NMOS transistor in active states, or by switching in the ATX 5VSB through a PMOS (or...