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TC1070 Datasheet(PDF) 7 Page - TelCom Semiconductor, Inc |
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TC1070 Datasheet(HTML) 7 Page - TelCom Semiconductor, Inc |
7 / 12 page TC1071 1 PRELIMINARY INFORMATION TC1071-01 6/13/97 100mA ADJUSTABLE CMOS LDO WITH SHUTDOWN TC1071 FEATURES s Zero Ground Current for Longer Battery Life! s Adjustable Output Voltage s Very Low Dropout Voltage s Guaranteed 100mA Output s Power-Saving Shutdown Mode s Over-Current and Over-Temperature Protection s Space-Saving SOT-23A-5 Package s Pin Compatible with LP2980 and MIC5205 Regulators 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 100mA ADJUSTABLE CMOS LDO WITH SHUTDOWN TYPICAL APPLICATION TelCom Semiconductor reserves the right to make changes in the circuitry and specifications ot its devices. GENERAL DESCRIPTION The TC1071 is an adjustable LDO designed to super- cede a variety of older (bipolar) voltage regulators. De- signed specifically for battery-operated systems, the TC1070’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!). TC1071 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. Supply current is reduced to less than 1 µA when the shutdown input is low. The TC1071 incorpo- rates both over-temperature and over-current protection. Output voltage is programmed with a simple resistor divider from VOUT to ADJ. The TC1071 is stable with an output capacitor of only 1 µF and has a maximum output current of 100mA. For higher output versions, please see the TC1174 (IOUT = 300mA) data sheet. C1 1 µF Shutdown Control (from Power Control Logic) TC1071 VIN 1 2 3 4 R2 R1 5 VIN VOUT ADJ V OUT = VREF x [R2 + 1] R1 SHDN GND VOUT PIN CONFIGURATION ORDERING INFORMATION Output Junction Part No. Voltage **(V) Package Temp. Range TC1071VCT Adjustable 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 NOTE: *SOT-23A-5 is equivalent to the EIAJ (SC-74A) TC1071 (SOT-23A-5*) TOP VIEW 1 3 5 4 2 SHDN ADJ GND VOUT VIN |
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Descripción similar - TC1070 |
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