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TC105503ECT Datasheet(PDF) 3 Page - Microchip Technology |
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TC105503ECT Datasheet(HTML) 3 Page - Microchip Technology |
3 / 14 page © 2002 Microchip Technology Inc. DS21349B-page 3 TC105 2.0 PIN DESCRIPTIONS Thedescriptionsof the pins arelistedinTable2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. (5-Pin SOT-23A) Symbol Description 1 EXT Switch transistor control output. This terminal connects to the gate of an external P-channel MOSFET (or to the base of an external PNP transistor through a current limiting resistor). 2VDD Power supply voltage input. 3 GND Ground terminal. 4 SHDN Shutdown input (active low). The device enters a low power shutdown state when this input is brought low. During shutdown, regulator action is suspended, and supply current is reduced to less than 0.5 µA. The device resumes normal operation when SHDN is again brought high. 5VOUT Voltage sense input. This input senses output voltage for regulation and must be connected to the output voltage node as shown in the application schematic in this data sheet. |
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