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TC1173-2.8VOA bảng dữ liệu(PDF) 1 Page - TelCom Semiconductor, Inc |
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TC1173-2.8VOA bảng dữ liệu(HTML) 1 Page - TelCom Semiconductor, Inc |
1 / 7 page TC1173 TC1173-2 2/2/00 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices. GENERAL DESCRIPTION The TC1173 is a precision output (typically ±0.5%) CMOS low dropout regulator. Total supply current is typi- cally 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 240mV 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 300mA. 300mA CMOS LDO with Shutdown, ERROR Output and Bypass FEATURES s Extremely Low Supply Current for Longer Battery Life! s Very Low Dropout Voltage s Guaranteed 300mA Output s Standard or Custom Output Voltages s ERROR Output Can be Used as a Low Battery Detector or Processor Reset Generator s Power-Saving Shutdown Mode s Bypass Input for Ultra-Quiet Operation s Over-Current and Over-Temperature Protection s Space-Saving MSOP Package Option APPLICATIONS s Battery-Operated Systems s Portable Computers s Medical Instruments s Instrumentation s Cellular / GSM / PHS Phones s Linear Post-Regulator for SMPS s Pagers PIN CONFIGURATION 1 2 3 4 VIN 5 6 7 8 NC ERROR VOUT GND NC Bypass SHDN 1 2 3 4 VIN 5 6 7 8 NC ERROR VOUT GND NC Bypass SHDN TC1173VUA TC1173VOA MSOP SOIC ORDERING INFORMATION Part Junction Number Package Temp. Range TC1173-xxVOA 8-Pin SOIC – 40 °C to +125°C TC1173-xxVUA 8-Pin MSOP – 40 °C to +125°C Available Output Voltages: 2.5, 2.8, 3.0, 3.3, 5.0 xx indicates output voltages Other output voltages are available. Please contact TelCom Semiconductor for details. TYPICAL APPLICATION TC1173 1 2 3 4 5 6 7 8 VOUT Shutdown Control (from Power Control Logic) C1 1 µF GND NC VIN NC SHDN Bypass CBYPASS 470pF (Optional) ERROR R3 1M VIN ERROR |
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