User's Manual

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Note d’étude / Technical document : URD1– OTL
5665.3 – 003 / 72238 Edition 01
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Figure 15: Example of power supply based on a DC/DC step down converter
4.6.2 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 use to power the module.
Figure 16: Example of power supply based on regulator MIC29302WU
The voltage output is given by:
VOUT = 1.235V × [1 + (R1 / R2)]
To have 3.7V out R1=560K & R2=271.8K
(270K+1.8K)