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Power
Requirements
©
PHYTEC Messtechnik GmbH 2006 L-678e_0
23
4
Power Requirements
The phyCORE-MPC5200B tiny must be supplied with one supply
voltage only:
Supply voltage: +3.3 V
±
10 % with 1.2 A load
Caution:
Connect all +3V3 input pins to your power supply and at least the
matching number of GND pins neighboring the +3V3 pins.
As a general design rule we recommend connecting all GND pins
neighboring signals which are being used in the application circuitry
Optional Supply Input VBAT
VBAT is the input pin that supplies the Real-Time Clock (U5). The
MAX6364 battery supervisor IC (U12) senses the 3.3 V main supply
and VBAT and switches to the voltage with the higher level. VBAT
should be supplied from a 3 V source (i.e. lithium battery).
Figure 6:
Power Supply Diagram
3V3
1V5
VBAT (3V)
Real-Time
Clock
U5
VCC_SRAM
Power
DC/D C
Converter
Power
DC/D C
Converter
2V5
Voltage
Supervisor
/PoReset
Power
DC/D C
Converter
/RESIN
RESOUT
Summary of Contents for phyCORE-MPC5200B tiny
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Page 104: ...Published by PHYTEC Messtechnik GmbH 2006 Order No L 678e_1 Printed in Germany...