SS6577 Datasheet (Silicon Standard) - External NMOS Step-Down PWM Controller

SS6577, External NMOS Step-Down PWM Controller

The SS6577 is a current-mode switching regulator controller that drives an external N-channel power MOSFET using a fixed frequency architecture.

It uses an external divider to adjust the output voltage from 0.8V to 20V with excellent line and load regulation.

A maximum high duty-cycle limit of 95% p

SS6577 Features

* N-Channel MOSFET Drive Operating input voltage from 4.5V to 24V Wide output Range : 0.8V to 20V Reference: ±1.5% 0.8V Reference Low dropout operation : 95% duty cycle Fixed constant frequency - 500kHz Low standby current, I Q typically 720µA Logic-control micropower shutdown Output overvoltage prote