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TC110333ECT Fiches technique(PDF) 3 Page - Microchip Technology |
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TC110333ECT Fiches technique(HTML) 3 Page - Microchip Technology |
3 / 16 page © 2002 Microchip Technology Inc. DS21355B-page 3 TC110 2.0 PIN DESCRIPTIONS Thedescriptionsof the pins arelistedinTable2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. (5-Pin SOT-23A) Symbol Description 1VOUT Internal device power and voltage sense input. This dual function input provides both feedback voltage sensing and internal chip power. It should be connected to the regulator output. (See Section 4.0, Applications). 2VDD Power supply voltage input. 3 SHDN/SS Shutdown input. A logic low on this input suspends device operation and supply current is reducedtolessthan0.5 µA. The device resumes normal operation when SHDN is again brought high. An RC circuit connected to this input also determines the soft-start time. 4 GND Ground terminal. 5 EXT External switch transistor drive complimentary output. This pin drives the external switching transistor. It may be connected to the base of the external bipolar transistor or gate of the external N-channel MOSFET. (See Section 4.0, Applications). |
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