Ways of working:
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| Buck converter circuit to produce a voltage of 3.3v |
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| Offal TPS65163 which serves as a Buck Converter |
VIN got the T-con input voltage of 12v.
By MOSFET contained in the IC, the voltage at the switch on-off with 750khz frequency.
The output is SWB, where it is mounted to a schottky diode rectifier and a coil and capacitor as a filter to obtain a dc voltage is 3.3v.
So that a stable output voltage feedback fitted to pin-FBB.
Dc voltage is 1.2v or 1.8v 3.3v voltage commonly obtained from using an LDO regulator that looks like a transistor smd (picture below).
You need to know about Buck Converter;
The circuit is equipped with a surge protector in case of short circuit on the output. This is to protect the TPS65163 ic damage.
VGL voltage (Voff) obtained from this voltage, therefore, if there is no 3.3v voltage will cause a voltage VGL also disappeared.
Buck converter damage 3.3v.
Almost the same as the Long Boost up, the damage that is often encountered is that short smd capacitors at the output filter.
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