Stable low dropout voltage regulator controller

摘要: A single-loop voltage regulator controller includes a high-gain transconductance amplifier that accommodates common mode inputs as low its negative supply rail. The input stage of the produces proportional to absoulte temperature (PTAT) offset voltage. amplifier's inverting is connected circuit common, or rail, and tap from feedback network noninverting input. provides, at this tap, PTAT measure regulator's regulated output. output drive driver which, in turn, control terminal pass transistor. compensation capacitor between ensures stability even for relatively level load impedances.