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ACE1117C12YM+H Folha de dados(PDF) 6 Page - ACE Technology Co., LTD. |
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ACE1117C12YM+H Folha de dados(HTML) 6 Page - ACE Technology Co., LTD. |
6 / 11 page ACE1117C 1A Bipolar Linear Regulator VER 1.3 6 Typical Application ACE1117C has an adjustable version and six fixed versions (1.2V, 1.8V, 2.5V, 3.3V, 5.0V and 12V) Fixed output voltage version ACE1117C Application circuit of ACE1117C fixed version 1. Recommend using 10uF tan capacitor as bypass capacitor (C1) for all application circuit. 2. Recommend using 10uF tan capacitor to assure circuit stability. Adjustable Output Voltage Version ACE1117C provides a 1.25V reference voltage. Any output voltage between 1.25V~12V can be achievable by choosing two external resistors (schematic is shown below), R1 and R2 ACE1117C-ADJ Application Circuit of ACE1117C -ADJ The output voltage of adjustable version follows the equation: Vout=1.25*(1+R2/R1)+IAdj*R2. We can ignore IAdj because IAdj (about 50uA) is much less than the current of R1 (about 2~10mA). 1. To meet the minimum load current (>10mA) requirement, R1 is recommended to be 125ohm or lower. As ACE1117C-ADJ can keep itself stable at load current about 2mA, R1 is not allowed to be higher than 625 Ω. 2. Using a bypass capacitor (CADJ) between the ADJ pin and ground can improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the output voltage is increased. The impedance of CADJ should be less than R1 to prevent ripple from being amplified. As R1 is normally in the range of 100Ω~500Ω, the value of C ADJ should satisfy this equation:1/(2 * ripple*CADJ)<R1. |
Nº de peça semelhante - ACE1117C12YM+H |
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Descrição semelhante - ACE1117C12YM+H |
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