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TC2186 数据表(PDF) 9 Page - Microchip Technology |
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TC2186 数据表(HTML) 9 Page - Microchip Technology |
9 / 22 page © 2009 Microchip Technology Inc. DS21663D-page 9 TC2054/2055/2186 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. 3.1 Unregulated Supply Input (VIN) Connect the unregulated input supply to the VIN pin. If there is a large distance between the input supply and the LDO regulator, some input capacitance is necessary for proper operation. A 1 µF capacitor, connected from VIN to ground, is recommended for most applications. 3.2 Ground Terminal (GND) Connect the unregulated input supply ground return to GND. Also connect one side of the 1 µF typical input decoupling capacitor close to this pin and one side of the output capacitor COUT to this pin. 3.3 Shutdown Control Input (SHDN) The regulator is fully enabled when a logic-high is applied to SHDN. The regulator enters shutdown when a logic-low is applied to this input. During shutdown, the output voltage falls to zero and the supply current is reduced to 0.5 µA (maximum). 3.4 Out-of-Regulation Flag (ERROR) The open-drain ERROR flag provides indication that the regulator output voltage is not in regulation. The ERROR pin will be low when the output is typically below 5% of its specified value. 3.5 Regulated Voltage Output (VOUT) Connect the output load to VOUT of the LDO. Also connect one side of the LDO output decoupling capacitor as close as possible to the VOUT pin. TABLE 3-1: PIN FUNCTION TABLE Pin Number Symbol Description 1VIN Unregulated supply input. 2 GND Ground terminal. 3SHDN Shutdown control input. The regulator is fully enabled when a logic high is applied to this input. The regulator enters shutdown when a logic low is applied to this input. During shutdown, output voltage falls to zero, ERROR is open circuited and supply current is reduced to 0.5 µA (maximum). 4 ERROR Out-of-Regulation Flag. (Open-drain output). This output goes low when VOUT is out-of-tolerance by approximately -5%. 5VOUT Regulated voltage output. |
类似零件编号 - TC2186 |
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类似说明 - TC2186 |
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