View max667 datasheet:

19-3894; Rev 3; 10/94 +5V/Programmable Low-Dropout Voltage Regulator _______________General Description ____________________________Features The MAX667 low-dropout, positive, linear voltage regu- 350mV Max Dropout at 200mA lator supplies up to 250mA of output current. With no 250mA Output Current load, it has a typical quiescent current of 20µA. At 200mA of output current, the input/output voltage differ- Normal Mode: 20µA Typ Quiescent Current ential is typically 150mV. Other features include a low- Shutdown Mode: 0.2µA Typ Quiescent Current voltage detector to indicate power failure, as well as Low-Battery Detector early-warning and low-dropout detectors to indicate an imminent loss of output voltage regulation. A shutdown Fixed +5V (Min Component Count) or control