ldo - linear drop out

LDO 라는 레귤레이터가 있는데.. 약자가 궁금..

엄밀하게는 LDO 라고 하기 보다는 LDO 레귤레이터 라고 해야 할 듯?

간단하게.. 입력이랑 출력의 전압이 거의 차이가 없더라도 작동하는 녀석이고

스위칭 소자가 아니니 노이즈 없고

작고, 회로가 단순한 장점이나

LDO쓰면 전력을 소모시켜서 맞추는 거라 결국 미미하게라도 소비전력이 상승하게 되는 단점?

A low-dropout or LDO regulator is a DC linear voltage regulator that can regulate the output voltage even when the supply voltage is very close to the output voltage.[1] The advantages of a low dropout voltage regulator over other DC to DC regulators include the absence of switching noise (as no switching takes place), smaller device size (as neither large inductors nor transformers are needed), and greater design simplicity (usually consists of a reference, an amplifier, and a pass element). A significant disadvantage is that, unlike switching regulators, linear DC regulators must dissipate power across the regulation device in order to regulate the output voltage

[링크 : https://en.wikipedia.org/wiki/Low-dropout_regulator]

+2017.2.28

[링크 : http://forum.falinux.com/zbxe/index.php?document_srl=499315&mid=hardware]