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TC573302 Datasheet(PDF) 5 Page - Microchip Technology |
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TC573302 Datasheet(HTML) 5 Page - Microchip Technology |
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5 / 16 page  © 2002 Microchip Technology Inc. DS21437B-page 5 TC57 3.4 Input Capacitor The addition of an input capacitor further reduces output noise, and negates the effects of power supply input impedance. A 10 µF (min) Tantalum capacitor is recommended. 3.5 Shutdown Mode The TC57 enters a low power shutdown mode when the shutdown input (SHDN) is high. During shutdown, the regulator is disabled, the output capacitor is discharged through the load, and supply current to the TC57 decreases to less than 1 µA. Normal operation resumes when SHDN is brought low. If the shutdown mode is not used, SHDN should be tied to VIN. TABLE 3-1: COMPONENT SUPPLIERS Device Mounting Method Manufacturer Website CAPACITORS 267 Series Surface Mount Matsuo http://www.matsuoelectronics.com F95 Tantalum Series Surface Mount Nichicon http://www.nichicon-us.com 595 Tantalum Series Surface Mount Sprague http://www.vishay.com/brands/sprague OS-CON Series Through-Hole Sanyo http://www.sanyovideo.com LXF Series Through-Hole United Chemi-Con http://chemi-con.com TRANSISTORS ZTX749 Through-Hole Zetex http://www.zetex.com 2N4403 Through-Hole ON SEMI http://www.onsemi.com/home 2N2907A Through-Hole ON SEMI http://www.onsemi.com/home FZT749 Surface Mount Zetex http://www.zetex.com |
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