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2
2.6 Power Supply Circuit
The M3A-HS60 accepts a 5V power supply as its input, and generates 3.3V and 1.25V by using a regulator.
The regulator used here is an output voltage variable type, so that any desired voltage can be generated by changing
the resistance value.
Figure2.6.1 shows a block diagram of power supply circuit in the M3A-HS60.
Extension connector
SW1
5V
Rev.1.00 June 1,2005
REJ11J0002-0100Z
Flash
SDRAM
memory
5V ->
3.3V
5V ->
1.25V
Figure2.6.1 Block Diagram of Power Supply Circuit
Functional Overview
2.6 Power Supply Circuit
Extension connector
External
power supply J3
3
1
JP1
2
SH7206
2
External
JP2
power supply J5
3
1
2-12
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