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TC1269-2.8VUA Datasheet(PDF) 1 Page - Microchip Technology |
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TC1269-2.8VUA Datasheet(HTML) 1 Page - Microchip Technology |
1 / 12 page 2002-2012 Microchip Technology Inc. DS21380C-page 1 TC1269 Features • Very Low Ground Current for Longer Battery Life • Very Low Dropout Voltage • 300mA Output Circuit • 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 • Space-Saving MSOP Package Applications • Battery Operated Systems • Portable Computers • Medical Instruments • Instrumentation • Cellular/GSM/PHS Phones • Linear Post-Regulator for SMPS • Pagers •Digital Cameras Device Selection Table *Other output voltages are available. Please contact Microchip Technology Inc. for details. Package Type General Description The TC1269 is a fixed output, high accuracy (typically ±0.5%) CMOS upgrade for older (bipolar) low dropout regulators. Total supply current is typically 50 A 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 0.05 A (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 1 F and has a maximum output current of 300mA. Typical Application Part Number Output* Voltage (V) Package Junction Temp. Range TC1269-2.5VUA 2.5 8-Pin MSOP -40°C to +125°C TC1269-2.8VUA 2.8 8-Pin MSOP -40°C to +125°C TC1269-3.0VUA 3.0 8-Pin MSOP -40°C to +125°C TC1269-3.3VUA 3.3 8-Pin MSOP -40°C to +125°C TC1269-5.0VUA 5.0 8-Pin MSOP -40°C to +125°C 8-Pin MSOP VIN SHDN Bypass VOUT NC NC GND NC TC1269 1 2 3 45 6 7 8 TC1269 1 2 3 4 6 7 8 VOUT VOUT CBYPASS 470pF (Optional) Shutdown Control (from Power Control Logic) C1 1 µF NC NC GND Bypass VIN VIN NC SHDN + 300mA CMOS LDO with Shutdown and VREF Bypass |
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