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AP7173 Fiches technique(PDF) 2 Page - Diodes Incorporated |
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AP7173 Fiches technique(HTML) 2 Page - Diodes Incorporated |
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2 / 16 page ![]() AP7173 1.5A LOW DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START AP7173 Rev. 7 2 of 16 OCTOBER 2009 DS31369 www.diodes.com © Diodes Incorporated Typical Application Circuit (Continued) Table 1. Resistor Values for Programming the Output Voltage (Note 3) R1 (kΩ) R2 (kΩ) VOUT (V) Short Open 0.8 0.619 4.99 0.9 1.13 4.53 1 1.37 4.42 1.05 1.87 4.99 1.1 2.49 4.99 1.2 4.12 4.75 1.5 3.57 2.87 1.8 3.57 1.69 2.5 3.57 1.15 3.3 (Note: 3) VOUT = 0.8 x (1 + R1 / R2) Table 2. Capacitor Values for Programming the Soft-Start Time (Note 4) CSS SOFT-START TIME Open 0.1ms 270pF 0.5ms 560pF 1ms 2.7nF 5ms 5.6nF 10ms 0.01 µF 18ms Notes: 4. tSS(s) = 0.8 x CSS(F) / (4.4 x 10 –7) Figure 2. Turn-On Response |
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