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FAN5063 Datasheet, PDF (1/14 Pages) Fairchild Semiconductor – ACPI Dual Switch Controller | |||
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FAN5063
ACPI Dual Switch Controller
www.fairchildsemi.com
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 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 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
⢠Camino Platform ACPI Controller
⢠Whitney Platform ACPI Controller
⢠Tehama Platform ACPI Controller
Block Diagram
PWR_OK SLP_S3 SLP_S5
9
7
8
+5V Standby
+12V
31
2 16
10 Softstart
Osc
+5V Main
15
14
13
VADJ Dual
(2.5V RAMBUS
or 3.3V SDRAM)
12
Over Current
+ REF
-
-
REF +
11
-
+
+
REF
-
+3.3V Main
4
+5V Standby
5
6
+3.3V Dual (PCI)
REV. 1.0.0 12/4/00
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