Overview:
OB2353/2354/2355/2358 is used to switch the power supply Built-in high-voltage MOSFET current mode PWM controller series products.
This circuit has low standby power consumption and low starting current. Standby mode , The circuit enters the intermittent working mode, thereby effectively reducing the circuit The standby power consumption.

main feature :
● Internal integrated high voltage MOSFET
● Low starting current (5μA) and working current (1.5mA)
● Built-in synchronous slope compensation
● Realize "No Y-CAP" system design under 20W
● Built-in frequency jitter can reduce EMI
● Overcurrent and overvoltage protection
● Undervoltage lockout and automatic restart
● Internal soft start circuit
● Burst Mode (Burst Mode)
● Cycle-by-cycle current limiting mode

Application:
● DVD/DVB/set-top box power supply
● Linear power supply replacement
● Computer/server/liquid crystal TV standby power supply
● White home power supply

(GooGle Trans...)