TK11922

TK119xx VOLTAGE REGULATOR WITH RESET OUTPUT FEATURES s Very Low Dropout Voltage s Reset Output for Microprocessor s Very Low Quiescent Current (No Load) s Internal Thermal/Overload Shutdown s Low Noise Voltage s Input and Output Voltage Sense s ± 2.5 % Output Voltage Accuracy s CMOS or TTL On/Off Control s High Speed On/Off Transient (50 µs typ.) FEATURES 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 DESCRIPTION The TK119xx series are low power, linear regulators with built-in electronic switches. Built-in voltage comparators provide a reset logic ”low” level whenever the input or output voltage falls outside internally preset limits. The internal electronic switch can be controlled by CMOS or TLL levels. The device is in the “off” state when the control pin is biased “high”. An internal PNP pass-transistor is us...