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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP1804 датащи(PDF) 19 Page - Microchip Technology |
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MCP1804 датащи(HTML) 19 Page - Microchip Technology |
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19 / 36 page  2009-2013 Microchip Technology Inc. DS20002200D-page 19 MCP1804 5.0 FUNCTIONAL DESCRIPTION The MCP1804 CMOS linear regulator is intended for applications that need low current consumption while maintaining output voltage regulation. The operating continuous load of the MCP1804 ranges from 0 mA to 150 mA. The input operating voltage ranges from 2.0V to 28.0V, making it capable of operating from a single 12V battery or single and multiple Li-Ion cell batteries. 5.1 Input The input of the MCP1804 is connected to the source of the P-Channel PMOS pass transistor. As with all LDO circuits, a relatively low source impedance (< 10 ) is needed to prevent the input impedance from causing the LDO to become unstable. The size and type of the capacitor needed depend heavily on the input source type (battery, power supply) and the output current range of the application. For most applications, a 0.1 µF ceramic capacitor will be sufficient to ensure circuit stability. Larger values can be used to improve circuit AC performance. 5.2 Output The maximum rated continuous output current for the MCP1804 is 150 mA. A minimum output capacitance of 0.1 µF to 1.0 µF is required for small signal stability in applications that have up to 150 mA output current capability. The capacitor type can be ceramic, tantalum or aluminum electrolytic. |
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