Power Supply

The power supply converts the ac voltage to dc voltage and provides power for the following:

ŸSystem board set

ŸDiskette drive

ŸHard disk drive

ŸAuxiliary devices

ŸKeyboard

ŸLCD panel

ŸPCMCIA cards

Voltages

The power supply generates five different dc voltages: VCCCPU, VCC3A, VCC5M, VCCSW, and VCC12M. Figure 1-8 shows the

maximum current for each voltage.

Output

Voltage (V dc)

Current (A)

 

 

 

VCCCPU

+2.9 or+2.5

2.20

VCC3A

+3.3

2.00

 

 

 

VCC5M

+5.0

3.00

VCCSW

+5.0

0.01

 

 

 

VCC12M

+12.0

0.11

 

 

 

Figure 1-8. Power Supply Maximum Current

ThinkPad 560/560E System Overview 1-11

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IBM 560E manual Power Supply, Voltages, Output Voltage V dc Current a