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TC1054-5.0VCT bảng dữ liệu(PDF) 7 Page - TelCom Semiconductor, Inc |
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TC1054-5.0VCT bảng dữ liệu(HTML) 7 Page - TelCom Semiconductor, Inc |
7 / 12 page TC1055 1 PRELIMINARY INFORMATION TC1055-01 6/5/97 100mA CMOS LDO WITH SHUTDOWN AND ERROR OUTPUT ORDERING INFORMATION Output Junction Part No. Voltage **(V) Package Temp. Range TC1055-2.5VCT 2.5 SOT-23A-5* – 40 °C to +125°C TC1055-2.7VCT 2.7 SOT-23A-5* – 40 °C to +125°C TC1055-3.0VCT 3.0 SOT-23A-5* – 40 °C to +125°C TC1055-3.3VCT 3.3 SOT-23A-5* – 40 °C to +125°C TC1055-5.0VCT 5.0 SOT-23A-5* – 40 °C to +125°C NOTE: *SOT-23A-5 is equivalent to the EIAJ (SC-74A) ** Other output voltages available. Please contact TelCom Semiconductor for details GENERAL DESCRIPTION The TC1055 is a high accuracy (typically ±0.5%) CMOS upgrade for older (bipolar) low dropout regulators. De- signed specifically for battery-operated systems, the TC1055’s CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 50 µA at full load (20 to 60 times lower than in bipolar regulators!). TC1055 key features include ultra low noise operation, very low dropout voltage (typically 200mV at full load) and internal feed-forward compensation for fast response to step changes in load. An error output (ERROR) is asserted when the TC1055 is out-of-regulation (due to a low input voltage or excessive output current). ERROR can be used as a low battery warning or as a processor RESET signal (with the addition of an external RC network). Supply current is reduced to less than 1 µA, and both VOUT and ERROR are disabled when the shutdown input is low. The TC1055 incorporates both over-temperature and over-current pro- tection. The TC1055 is stable with an output capacitor of only 1 µF and has a maximum output current of 100mA. For higher output current regulators, please see the TC1107, TC1108 (IOUT = 300mA) data sheets. 100mA CMOS LDO WITH SHUTDOWN AND ERROR OUTPUT TC1055 PIN CONFIGURATION FEATURES s Zero Ground Current for Longer Battery Life s Very Low Dropout Voltage s Guaranteed 100mA Output s High Output Voltage Accuracy s Standard or Custom Output Voltages s Power-Saving Shutdown Mode s ERROR Output can be Used as a Low Battery Detector, or Processor Reset Generator s Over-Current and Over-Temperature Protection s Space-Saving SOT-23A-5 Package s Pin Compatible Upgrades for Bipolar Regulators APPLICATIONS s Battery Operated Systems s Portable Computers s Medical Instruments s Instrumentation s Cellular/GSMS/PHS Phones s Linear Post-Regulators for SMPS s Pagers TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices TYPICAL APPLICATION TC1055 (SOT-23A-5*) TOP VIEW 1 3 4 5 2 SHDN ERROR GND VOUT VIN 1 µF Shutdown Control (from Power Control Logic) TC1055 VIN 1 2 34 5 VIN VOUT ERROR SHDN GND 1M VOUT ERROR NOTE: *SOT-23A-5 is equivalent to the EIAJ (SC-74A) |
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