FAN5067 Datasheet | Fairchild Semiconductor

Features - Implements ACPI control with PWROK, SLP_S3 and SLP_S5 - Switch and linear regulator controller for 3.3V or 5V Dual - Linear regulator controller and linear regulator for VADJ Dual output adjustable from 2.5V to 3.5V - Break-before-Make - 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 - 16 pin SOIC package Description The FAN5067 is an ACPI Switch Controller for Pentium IV Platforms. It is controlled by PWROK, SLP_S3 and SLP_S5, and provides 3.3V or 5V Dual and VADJ Dual output for SDRAM or DDR with 200m A minimum base current for an external NPN transistor. An on-board precision low TC reference achieves tight tolerance voltage regulation without expensive external ponents. The FAN5067 also offers integrated Current Limiting that protects each output, and softstart for the linear regulators. The FAN5067 is available in a 16 pin SOIC. Applications - Willamette Platform ACPI Controller - Northnwood Platform ACPI Controller Block Diagram +5V Standby PWR_OK 9 SLP_S3 7 SLP_S5 8 3 1 2 16 +12V Softstart Osc +5V Main 15 Over Current Main 4 14 + VADJ Dual (SDRAM or DDR) 13 + REF + 11 + REF 5 6 +5V Standby 12 REF +3.3V or 5V Dual REV. 1.0.1 5/2/02 PRODUCT SPECIFICATION Pin Assignments QCAP PUMP 5VSTBY DUALOUT1 DUALOUT2 DUALVFB SLP_S3 SLP_S5 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCCP 5VMAIN VADJOUT VADJ VADJFB GND SS PWR_OK Pin Definitions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name QCAP PUMP 5VSTBY DUALOUT1 DUALOUT2 DUALFB SLP_S3 SLP_S5 PWR_OK SS GND VADJFB VADJ VADJOUT 5VMAIN VCCP Pin Function Description Charge pump cap. Attach flying capacitor between this pin and PUMP to generate high voltage from standby power. Charge pump switcher. 5V Standby. Apply +5V standby on this pin to run the circuit in standby mode. Dual output main gate control. Attach this pin to a transistor...