AQ112

The AQ112 is an ultra-low dropout three terminal voltage regulator, offered in popular fixed options or an adjustable version that can set a precise voltage from 1.22V to 12V with two external resistors.

AQ112 drops into the footprint of the popular LM1117 SOT-223 and provides a true 4th pin separated from the output tab which allows a separate bias connection from the pass transistor in order to achieve enable and ultra low dropout from VIN to VOUT.

The enable pin provides a remote turn-off for low power consumption. IAQ112 draws virtually zero current in shutdown mode and implements Sequential, Ratiometric, or Simultaneous sequencing schemes.

To assure accuracy within 1%, the heart of the AQ112 is a self-correcting AcuRef™ bandgap reference.

On-chip current limit and thermal shutdown of AQ112 with hysteresis protects against any combination of overload and ambient temperature that might cause the junction temperature to exceed safe limits.