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TC115501ECT Datasheet(PDF) 4 Page - Microchip Technology |
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TC115501ECT Datasheet(HTML) 4 Page - Microchip Technology |
4 / 14 page TC115 DS21361C-page 4 2003 Microchip Technology Inc. 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE 3.1 Power and Voltage Sense Input (PS) PS is a dual function input that provides both feedback voltage sensing and internal chip power. It should be connected to the regulator output (See Section 5.0, “Applications”). 3.2 Shutdown Input (SHDN) A logic-low on SHDN suspends device operation and supply current is reduced to less than 0.5 µA. The device resumes normal operation when SHDN is again brought high. 3.3 Inductor Switch Output (LX) LX is the drain of an internal N-channel switching tran- sistor. This terminal drives the external inductor, which ultimately provides current to the load. 3.4 Ground Terminal (GND) Connect to circuit ground. 3.5 No Connect (NC) No internal connection. Pin No. Symbol Description 1 NC Not connected 2 PS Power and voltage sense input 3SHDN Shutdown input 4 LX Inductor switch output 5 GND Ground terminal |
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