Part Number
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SC1544 |
Manufacturer
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Semtech Corporation |
Description
|
ACPI Controller for Advanced Motherboards |
Published
|
Apr 8, 2005 |
Detailed Description
|
POWER MANAGEMENT Description
Semtechs SC1544, SC243x and SC1112A or SC1114 provide all the voltages necessary for an AC...
|
Datasheet
|
SC1544
|
Overview
POWER MANAGEMENT Description
Semtechs SC1544, SC243x and SC1112A or SC1114 provide all the voltages necessary for an ACPI system.
The SC1544 offers five independant supplies: a 5V dual supply for USB, a 3.
3V dual supply for PCI, a 3.
3V or 2.
5V dual supply for memory, a 1.
5V or 3.
3V supply for AGP and a 1.
8V supply.
The AGP supply is programmble using the system TYPEDET signal.
An on-board internal charge pump eliminates the need for P-channel MOS.
ETs and enables function from a single 5V supply (system 5VSB).
All dual outputs are over current protected.
The SC1544 differs from the SC1547 in three important ways: 1) the device initially starts up in S5, and not G0 like the SC1547; 2) the gat...
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