ISL6506 is a complement to 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.
The ISL6506 family provides two ACPI‑controlled voltage rails (5 V USB/Keyboard/Mouse and 3.3 V for PCI/Aux/LAN) in a compact 8‑lead EPSOIC package. Variants differ in current capability: ISL6506/ISL6506A support 1 A, while ISL6506B supports 2 A on the 3.3 V LDO.
The device includes over‑temperature shutdown, ROHS‑compliant Pb‑free packaging, and a soft‑start circuit. Pin functions, timing diagrams, layout guidelines, and component selection advice are detailed for motherboard designers.
| Current limit (ISL6506B) | 2 A |
|---|---|
| Current limit (ISL6506/ISL6506A) | 1 A |
| High‑level input threshold | 2.2 V |
| Low‑level input threshold | 0.8 V |
| Package type | 8‑lead EPSOIC (plastic) – 0.056 in × 0.066 in |
The ISL6506B can supply up to 2 A on its internal 3.3 V LDO.
The devices are offered in an 8‑lead Small Outline Exposed Pad (EPSOIC) plastic package.