www.fairchildsemi.com
RC5060
ACPI Switch Controller
Features
¥ Implements ACPI control with PWROK, SLP_S3# and SLP_S5#...
www.fairchildsemi.com
RC5060
ACPI Switch Controller
Features
¥ Implements ACPI control with PWROK, SLP_S3# and SLP_S5# ¥ Switch and linear
regulator controller for 3.3V Dual (PCI) ¥ Linear
regulator controller and linear
regulator for 2.5V Dual (RAMBUS) ¥ Two switch controller for 5V Dual (USB) ¥ Switch controller and linear
regulator for 3.3V SDRAM ¥ Provides SDRAM and RAMBUS power simultaneously ¥ Adaptive Break-before-Make ¥ Integrated Power Good ¥ Drives all N-Channel MOSFETs plus
NPN ¥ Latched overcurrent protection for outputs ¥ Power-up softstarts for the linear
regulators ¥ UVLO guarantees correct operation for all conditions ¥ 20 pin SOIC package
Applications
¥ Camino Platform ACPI Controller ¥ Whitney Platform ACPI Controller ¥ Tehama Platform ACPI Controller
Description
The RC5060 is an ACPI Switch Controller for the Camino, Whitney and Tehama Platforms. It is controlled by PWROK, SLP_S3# and SLP_S5#, and provides 3.3V Dual for PCI, 3.3V for SDRAM, 2.5V Dual for RAMBUS, and 5V Dual voltages. An on-board precision low TC reference achieves tight tolerance voltage regulation without expensive external components. The RC5060 also offers integrated Power Good and Current Limiting that protects each output, and softstart for the linear
regulators. The RC5060 is available in a 20 pin SOIC.
Block Diagram
+5V Standby PWROK 3.3V Main 3 +5V Main 4 3.3V SDRAM 13 9 PWRGD Over Current +3.3V Main 3.3V MAIN 16 Over Current + REF + 14 + + REF 7 8 +3.3V Dual (PCI) 6 +5V Standb...