DESCRIPTION
The TK112xxA is a low dropout linear regulator with a built in electronic switch. The internal switch can be controlled by TTL or CMOS logic levels. The device is in the ON state when the control pin is pulled to a logic high level. An external capacitor can be connected to the noise bypass pin to lower the output noise level to 30 µVrms.

FEATURES
■ High Voltage Precision at ±2.4%
■ Active High On/Off Control
■ Very Low Dropout Voltage 80 mV at 30 mA
■ Very Low Noise
■ Very Small SOT-23L or SOT-89-5 Surface Mount Packages
■ Internal Thermal Shutdown
■ Short Circuit Protection

APPLICATIONS
■ Battery Powered Systems
■ Cellular Telephones
■ Pagers
■ Personal Communications Equipment
■ Portable Instrumentation
■ Portable Consumer Equipment
■ Radio Control Systems
■ Toys
■ Low Voltage Systems