LM5085, LM5085-Q1

SNVS565I – NOVEMBER 2008 – REVISED AUGUST 2015

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7.4 Device Functional Modes

7.4.1 Standby Mode with VIN <4.5 V

The LM5085 is intended to operate with input voltages above 4.5 V. The minimum operating input voltage is

greater than the VCC UVLO threshold, the controller switches to the standby mode with the PFET buck switch in

the off state.

7.4.2 RT Shutdown Mode

The LM5085 is in shutdown mode when the RT pin is pulled below 0.73 V (typ). In this mode, the PFET gate

driver is held off and the VCC regulator is disabled.

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