Knowledge of voltage regulator or linear power supply

The voltage regulator is a linear voltage regulator power supply, which refers to the DC voltage regulator under the linear working state of the adjustment tube, often divided into NPN regulator, LDO regulator and quasi-LDO regulator. It has the advantages of small output voltage ripple and low noise, but with DCDC electricity Compared with the source chip, the efficiency is low, and the heat output is large when the power is high Selection suggestions, 1 Voltage regulator efficiency is low, pay attention to avoid the input and output pressure difference is too large, do a good job of heat dissipation treatment 2 Note that the input voltage of the regulator has a minimum requirement Common models: MC7805BTG, 78MO5, LM341, AMS1117, MC33269, 7812, TPS76633D, 7845P. 7815. LM385, XC6206P

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