TK11690U

TK116xxU THREE-TERMINAL VOLTAGE REGULATOR FEATURES s s s s s s s Low Dropout Voltage Very Low Standby Current (No Load) Good Load Regulation Internal Thermal Shutdown Short Circuit Protection 3% Output Voltage Accuracy Customized Versions Are Available APPLICATIONS s s s s s s s s Battery Powered Systems Portable Consumer Equipment Cordless Telephones Personal Communications Equipment Portable Instrumentation Radio Control Systems Toys Low Voltage Systems DESCRIPTION The TK116xxU series devices are low dropout, linear 3terminal regulators. An internal PNP pass-transistor is used in order to achieve low dropout voltage (typically 160 mV at 80 mA load current). The regulated output voltages of 3, 3.3, 5 and 9 V are available. The device has very low (400 µA) quiescent current with no load and 2 mA with 60 mA load. An internal thermal shutdown circuit limits the junction temperature to below 150 °C. The load current is internally monitored and the device will shut down in the presence of a short circuit at the output. The TK116xxU is available in the SOT-89 surface mount package. BLOCK DIAGRAM TK116xxU VIN GND GND VOUT ORDERING INFORMATION VIN VOUT TK116 Voltage Code U Tape/Reel Code THERMAL PROTECTION VOLTAGE CODE 30 = 3.0 V 33 = 3.3 V 50 = 5.0 V 90 = 9.0 V TAPE/REEL CODE TL: Tape Left BANDGAP REFERENCE GND January 1999 TOKO, Inc. Page 1 TK116xxU ABSOLUTE MAXIMUM RATINGS Supply Voltage ......................................................... 18 V Operating Vol...