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TK11430BX Datasheet(PDF) 1 Page - TOKO, Inc |
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TK11430BX Datasheet(HTML) 1 Page - TOKO, Inc |
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1 / 24 page  11-20-94 TK114xx January, 1995 TOKO, Inc. Page 1 FEATURES s Low Dropout Voltage s Electronic ON/OFF Switch s Very Low Standby Current (ON, No Load) s Internal Thermal Shutdown s Short Circuit Protection s Very Low (<100 nA) Current in OFF Mode s Customized Versions Are Available DESCRIPTION The TK114xx is a low power, linear regulator with a built- in electronic switch. The internal electronic switch can be controlled by an external pull-up resistor and an open drain or open collector transistor. The device is in the OFF state when the control pin is biased from V IN through the pull-up resistor. An internal PNP pass-transistor is used in order to achieve low dropout voltage (typically 200 mV at 50 mA load current). The device has very low quiescent current (500 µA) in the ON mode with no load and 2 mA with 30 mA load. The quiescent current is typically 4 mA at 60 mA load. An internal thermal shutdown circuit limits the junction tem- perature to below 150 °C. The load current is internally monitored and the device will shut down (no load current) in the presence of a short circuit at the output. The device is available in a small SOT-23L surface mount package. VOLTAGE REGULATOR WITH ON/OFF SWITCH APPLICATIONS s Battery Powered Systems s Cellular Telephones s Pagers s Personal Communications Equipment s Portable Instrumentation s Portable Consumer Equipment s Radio Control Systems s Toys s Low Voltage Systems BLOCK DIAGRAM 1 3 CONTROL GND 6 4 VIN V O KT114xxM.PO 2 5 TK114xxM TK114 Voltage Code Tape/Reel Code TAPE/REEL CODE BX : Bulk/Bag TL : Tape Left ORDERING INFORMATION VOLTAGE CODE 30 = 3.0 V 32 = 3.25 V 35 = 3.5 V 37 = 3.75 V 40 = 4.0 V 45 = 4.5 V 47 = 4.75 V 50 = 5.0 V 55 = 5.5 V 57 = 5.75 V 60 = 6.0 V 80 = 8.0 V S S S S S S S S S S VO VIN LOW CONTROL (LC) GND KT114xx • BD TK114xx BANDGAP REFERENCE – + HIGH CONTROL (HC) + S S S S THERMAL PROTECTION S S 2 1 3 6 8 R3 |
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