TC1173 Datasheet

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  TC1173 Datasheet

The TC1173 is a precision output (typically ±0.5%) CMOS low dropout regulator. Total supply current is typically 50 µA at full load (20 to 60 times lower than in bipolar regulators). TC1173 key features include ultra low noise operation (plus optional Bypass input); very low dropout voltage (typically 240 mV at full load) and internal feed-forward compensation for fast response to step changes in load. An error output (ERROR) is asserted when the TC1173 is out-of-regulation (due to a low input voltage or excessive output current). ERROR can be set as a low battery warning or as a processor RESET signal (with the addition of an external RC network). Supply current is reduced to 0.05 µA (typical) and VOUT and ERROR fall to zero when the shutdown input is low. The TC1173 incorporates both over-temperature and over-current protection. The TC1173 is stable with an output capacitor of only 1 µF and has a maximum output current of 300 mA.

Parameter Name  Value
Max Input Voltage  6
Output Voltage (v)  2.5, 2.8, 3.0, 3.3, 5.0
Typical Active Current (µA)  50
Typical Dropout Voltage @ Max. lout (mV)  240
Typical Output Voltage Accuracy (%)  0.5
Output Capacitor Type  Aluminum/Tantalum
Output Current (mA)  300

     Features
Low Supply Current for Longer Battery Life
Very Low Dropout Voltage
300 mA Output Current
Standard or Custom Output Voltages
ERROR Output Can be Used as a Low Battery Detector or Processor Reset Generator
Power-Saving Shutdown Mode
Bypass Input for Ultra-Quiet Operation
Over-Current and Over-Temperature Protection


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