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SC1544

Semtech Corporation
Part Number SC1544
Manufacturer Semtech Corporation
Description ACPI Controller for Advanced Motherboards
Published Apr 8, 2005
Detailed Description POWER MANAGEMENT Description Semtech’s SC1544, SC243x and SC1112A or SC1114 provide all the voltages necessary for an AC...
Datasheet PDF File SC1544 PDF File

SC1544
SC1544

Overview
POWER MANAGEMENT Description Semtech’s 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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