Semiconductor device

摘要

A semiconductor device has a start-up circuit which comprises a third node (N3), a first switch (103A) which electrically connects a first node (N1) and an input terminal (102I) of a second mirror circuit (102) based on a voltage level at the third node; a second switch (103B) which electrically connects the first node and the third node based on a voltage level at an input terminal (101I) of a first current mirror circuit (101); and a third switch (103C) which electrically connects the first node and the third node based on an inverted voltage level at the third node.