Functions of Load Switch IC

(1)Under voltage lock out (UVLO)
This function places the IC in the standby state when the input voltage drops below the specified input voltage so that the internal circuit becomes unstable, and malfunction does not occur.
(2)Thermal shut down (TSD)
It is a circuit to prevent deterioration and destruction of the device because of remarkable ambient temperature rise, heat generation of the device itself due to unintentional high current load etc. When the specified temperature is detected by the internal temperature detection circuit, the output transistor is turned off.
(3)True reverse current blocking
When input voltage V_IN becomes higher than output voltage V_OUT, current flows back from V_OUT pin to V_IN pin. Thction prevents reverse flow and protects the power supply etc. connected to the V_IN terminal from deterioration and destruction.
(4)Over current limit
When the output terminal V_OUT becomes unintentionally shorted, it protects against deterioration and destruction due to the heat generation of the device itself.
(5)Slew rate control driver
This circuit suppresses inrush current generated during switching transient.
(6)Output discharge
In a general load switch circuit, when the output transistor is turned off, the terminal voltage of V_OUT may remain for a certain time depending on the load capacitance connected to the output terminal. This circuit rapidly discharges the charge accumulated on the load side and drops the V_OUT terminal voltage to near the IC GND.

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