TC1269 Datasheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifTC1269 DatasheetThe TC1269 is a fixed output, high accuracy (typically ±0.5%) CMOS upgrade for older (bipolar) low dropout regulators. Total supply current is typically 50µA at full load (20 to 60 times lower than in bipolar regulators!). TC1269 key features include ultra low noise operation (plus optional Bypass input); very low dropout voltage (typically 240mV at full load), and fast response to step changes in load. Supply current is reduced to 0.05µA (typical) and VOUT falls to zero when the shutdown input is low. The TC1269 incorporates both over-temperature and over-current protection. The TC1269 is stable with an output capacitor of only 1µF and has a maximum output current of 300mA.
Parameter NameValue
Max Input Voltage6
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 TypeAluminum/Tantalum
Output Current (mA)300
Features
Very Low Ground Current for Longer Battery Life
Very Low Dropout Voltage
High Output Voltage Accuracy
Standard or Custom Output Voltages
Power-Saving Shutdown Mode
Bypass Input for Ultra-Quiet Operation
Over-Current and Over-Temperature Protection
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