User's Manual

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User Manual 2012/06/28
Figure 12: DC/DC power supply schematic example
3.4.3.2 Simple high current low dropout voltage regulator
If the whole power consumption is not an issue, this example of a simple voltage regulator preceded by an
AC/DC to 5V converter, can be used to power the module.
Figure 13: Example of power supply based on regulator MIC29302WU
3.4.3.3 Simple 4V boost converter
The input can be preceded by an AC/DC converter to get the 5V. PGOOD signal can be checked before the
ignition of the module.
The voltage output is given by:
VOUT = 1.24V × [1 + (R1 / R2)]
To have 3.7V out R1=100K & R2=49.9K)