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TC1070 Datasheet(PDF) 1 Page - TelCom Semiconductor, Inc |
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TC1070 Datasheet(HTML) 1 Page - TelCom Semiconductor, Inc |
1 / 12 page TC1070 1 PRELIMINARY INFORMATION TC1070-01 6/13/97 50mA ADJUSTABLE CMOS LDO WITH SHUTDOWN TC1070 FEATURES s Zero Ground Current for Longer Battery Life! s Adjustable Output Voltage s Very Low Dropout Voltage s Guaranteed 50mA 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 50mA 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 TC1070 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!). TC1070 key features include ultra low noise operation very low dropout voltage (typically 100mV 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 TC1070 incorpo- rates both over-temperature and over-current protection. Output voltage is programmed with a simple resistor divider from VOUT to ADJ. The TC1070 is stable with an output capacitor of only 1 µF and has a maximum output current of 50mA. For higher output versions, please see the TC1107, TC1108 (IOUT = 300mA) data sheets. C1 1 µF Shutdown Control (from Power Control Logic) TC1070 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 TC1070VCT 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) TC1070 (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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