SBVS171F December 2011 – October 2015 TPS7A16
|DELAY||7||O||Delay pin. Connect a capacitor to GND to adjust the PG delay time; leave open if the reset function is not needed.|
|EN||5||I||Enable pin. This pin turns the regulator on or off.
If VEN ≥ VEN_HI, the regulator is enabled.
If VEN ≤ VEN_LO, the regulator is disabled.
If not used, the EN pin can be connected to IN. Make sure that VEN ≤ VIN at all times.
|FB/DNC||2||I||For the adjustable version (TPS7A1601), the feedback pin is the input to the control-loop error amplifier. This pin is used to set the output voltage of the device when the regulator output voltage is set by external resistors.
For the fixed voltage versions: Do not connect to this pin. Do not route this pin to any electrical net, not even GND or IN.
|IN||8||IN||Regulator input supply pin. A capacitor ≥ 0.1 µF must be tied from this pin to ground to assure stability. TI recommends connecting a 10-µF ceramic capacitor from IN to GND (as close to the device as possible) to reduce circuit sensitivity to printed-circuit-board (PCB) layout, especially when long input traces or high source impedances are encountered.|
|NC||6||—||This pin can be left open or tied to any voltage between GND and IN.|
|OUT||1||O||Regulator output pin. A capacitor ≥ 2.2 µF must be tied from this pin to ground to assure stability. TI recommends connecting a 10-µF ceramic capacitor from OUT to GND (as close to the device as possible) to maximize AC performance.|
|PG||3||O||Power-good pin. Open collector output; leave open or connect to GND if the power-good function is not needed.|
|PowerPAD||—||—||Solder to printed-circuit-board (PCB) to enhance thermal performance. Although it can be left floating, TI highly recommends connecting the PowerPAD to the GND plane.|