LW4933
POWER SUPPLY SUPERVISOR WITH PWM CONTROLLER
Description
The LW4933 is designed with a pulse-width-modulation control circuit and a complete power supervisor for use in the switched mode power supply .
It contains various functions, like under
voltage protection (UVP), over
voltage protection (OVP), power good output (PG) and ON/OFF control (REM).
UVP(Under
voltage protection) function is for +3.
3V, +5V, +12V outputs.
OVP(Over
voltage protection) function is for +3.
3V, +5V, +12V and PT is for extra protection input.
PG(Power good signal) is a safe operation signal to inform the external parts.
REM(Remote on/off) is used to control the SMPS on/off.
The REM control signal has the on/off...