VOLTAGE STABILIZED INTEGRATED CIRCUIT DEVICE

摘要

PURPOSE:To set the output voltage of an integrated circuit device with high accuracy by integrating plural units of a resistance element having an approximately same form as a resistance of an error voltage detecting part which sets the output voltage with the equal resistance value. CONSTITUTION:The resistance groups of an error voltage detecting part 3 are provided in integration within the same chip in the form of resistors R11-R34 having about 1kOMEGA resistance value with the same form. When the detection resistance RA is set at 5kOMEGA, five resistors R11-R15, for example, are connected in series. Then 19 pieces of resistors R16-R34 are connected in a desired form for application in the form of a detection resistance RB. In case the resistors R16- R34 are connected in series, the resistance RB can be set every 1kOMEGA step from 1kOMEGA to 19kOMEGA. The output voltage V0 can be obtained 20 types every 1V step from 5V to 24V. Furthermore it is possible to obtain other different types of output voltage by changing the mode of connection of resistors R16-R34.