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TC1268-2.5VOA Folha de dados(PDF) 1 Page - Microchip Technology |
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TC1268-2.5VOA Folha de dados(HTML) 1 Page - Microchip Technology |
1 / 12 page © 2002 Microchip Technology Inc. DS21379B-page 1 TC1268 Features • Very Low Dropout Voltage • 500mA Output Current • High Output Voltage Accuracy • Standard or Custom Output Voltages • Over Current and Over Temperature Protection • SHDN Input for Active Power Management • ERROR Output to Detect Low Battery •5 µsec (typical) Wake-up Time from SHDN Applications • RAMBUS Memory Module • 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 and package options are available. Please contact Microchip Technology Inc. for details. Package Type General Description The TC1268 is a fixed output, fast turn-on, high accuracy (typically ±0.5%) CMOS low dropout regulator. Designed specifically for battery-operated systems, the TC1268’s CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 80 µA at full load (20 to 60 times lower than in bipolar regulators). TC1268’s key features include ultra low noise, very low dropout voltage (typically 350mV at full load), and fast response to step changes in load. The TC1268 also has a fast wake-up response time (5 µsec typically) when released from shutdown. The TC1268 incorporates both over temperature and over current protection. The TC1268 is stable with an output capacitor of only 1 µF and has a maximum output current of 500mA. Typical Application Part Number Output* Voltage (V) Package Junction Temp. Range TC1268-2.5VOA 2.5 8-Pin SOIC -40°C to +125°C 1 2 3 4 8 7 6 5 TC1268 NC SHDN 8-Pin SOIC GND NC BYPASS VOUT VIN ERROR TC1268 VIN VOUT COUT 1 µF GND VOUT VIN SHDN SHDN + 500mA Fixed Output, Fast Response CMOS LDO with Shutdown |
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