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FAN5063
ACPI Dual Switch Controller
Features
鈥?Implements ACPI control with PWROK, SLP_S3 and
SLP_S5
鈥?Switch and linear regulator controller for 3.3V Dual (PCI)
鈥?Linear regulator controller and linear regulator for VADJ
Dual output adjustable from 2.5V to 3.5V
鈥?Break-before-Make
鈥?Drives all N-Channel MOSFETs plus NPN
鈥?Latched overcurrent protection for outputs
鈥?Power-up softstarts for the linear regulators
鈥?UVLO guarantees correct operation for all conditions
鈥?16 pin SOIC package
Description
The FAN5063 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 and
VADJ Dual output for SDRAM or RAMBUS with 200mA
minimum base current for an external NPN transistor. An on-
board precision low TC reference achieves tight tolerance volt-
age regulation without expensive external components. The
FAN5063 also offers integrated Current Limiting that protects
each output, and softstart for the linear regulators. The
FAN5063 is available in a 16 pin SOIC.
Applications
鈥?Camino Platform ACPI Controller
鈥?Whitney Platform ACPI Controller
鈥?Tehama Platform ACPI Controller
Block Diagram
+5V Standby
PWR_OK
9
SLP_S3
7
SLP_S5
8
3
1
2
16
+12V
10
Softstart
Osc
+5V Main
15
Over Current
+3.3V Main
4
14
-
+
VADJ Dual
(2.5V RAMBUS
or 3.3V SDRAM)
13
+
-
REF
-
+
11
+
-
REF
5
6
+5V Standby
12
REF
+3.3V Dual (PCI)
REV. 1.0.0 12/4/00