SLVSDV8 July 2017 TPS54424
The device uses a transconductance error amplifier. The error amplifier compares the FB pin voltage to the lower of the SS/TRK pin voltage or the internal 0.6-V voltage reference. The transconductance of the error amplifier is 1100 μA/V. The frequency compensation network is connected between the COMP pin and ground.
When operating at current limit the COMP pin voltage is clamped to a maximum level to improve response when the load current decreases. When FB is greater than the internal voltage reference or SS/TRK the COMP pin voltage is clamped to a minimum level and the devices enters a high-side skip mode.