The TLV62568AP and TLV62569AP have a power good output. The PG pin goes high impedance once the output is above 95% of the nominal voltage, and is driven low once the output voltage falls below typically 90% of the nominal voltage. The PG pin is an open-drain output and is specified to sink up to 2 mA. The power good output requires a pull-up resistor connecting to any voltage rail less than 5.5 V. The PG signal can be used for sequencing of multiple rails by connecting it to the EN pin of other converters. Leave the PG pin unconnected when not used.
|DEVICE CONDITIONS||LOGIC STATUS|
|Enable||EN = High, VFB ≥ VPG||√|
|EN = High, VFB ≤ VPG||√|
|Shutdown||EN = Low||√|
|Thermal Shutdown||TJ > TJSD||√|
|UVLO||1.4 V < VIN < VUVLO||√|
|Power Supply Removal||VIN ≤ 1.4 V||√|