onsemi NCP11187A065PG, 1 Low Dropout Voltage, Voltage Regulator, 130 kHz 7-Pin, PDIP

The ON Semiconductor NCP1118x integrates a peak current mode PWM controller employing mWSaver technology and a highly robust 800 V SJ MOSFET providing especially enhanced performance in flyback converter. The mWSaver technology reduces switching frequency and operating current of the controller at light−load condition, which help avoid acoustic−noise problem and even meet international power conservation standard, such as energy star.

Proprietary asynchronous frequency hopping technique for low EMI
Programmable constant output power limit for entire input voltage range
Precise brown−out protection and line over−voltage protection with hysteresis