The TPS7A11 is a low-input, ultra-low dropout, and low quiescent current linear regulator that is optimized for excellent transient performance. These characteristics make the device ideal for most battery-powered applications. The implementation of the BIAS pin on the TPS7A11 vastly improves efficiency of low-voltage output applications by allowing the use of a pre-regulated, low-voltage input supply that offers sub-band-gap output voltages. This low-dropout regulator (LDO) offers foldback current limit, shutdown, thermal protection, high output voltage accuracy of 1.5% over the recommended junction temperature range, and optional active discharge.