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LM2594HVM-3.3 Datasheet(PDF) 11 Page - National Semiconductor (TI) |
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LM2594HVM-3.3 Datasheet(HTML) 11 Page - National Semiconductor (TI) |
11 / 28 page LM2594/LM2594HV Series Buck Regulator Design Procedure (Fixed Output) (Continued) LM2594/LM2594HV Series Buck Regulator Design Procedure (Adjustable Output) PROCEDURE (Adjustable Output Voltage Version) EXAMPLE (Adjustable Output Voltage Version) Given: V OUT = Regulated Output Voltage V IN(max) = Maximum Input Voltage I LOAD(max) = Maximum Load Current F = Switching Frequency (Fixed at a nominal 150 kHz). Given: V OUT = 20V V IN(max) = 28V I LOAD(max) = 0.5A F = Switching Frequency (Fixed at a nominal 150 kHz). Conditions Inductor Output Capacitor Through Hole Surface Mount Output Load Max Input Inductance Inductor Panasonic Nichicon AVX TPS Sprague Voltage Current Voltage (µH) (#) HFQ Series PL Series Series 595D Series (V) (A) (V) (µF/V) (µF/V) (µF/V) (µF/V) 3.3 0.5 5 33 L14 220/16 220/16 100/16 100/6.3 7 47 L13 120/25 120/25 100/16 100/6.3 10 68 L21 120/25 120/25 100/16 100/6.3 40 100 L20 120/35 120/35 100/16 100/6.3 6 68 L4 120/25 120/25 100/16 100/6.3 0.2 10 150 L10 120/16 120/16 100/16 100/6.3 40 220 L9 120/16 120/16 100/16 100/6.3 5 0.5 8 47 L13 180/16 180/16 100/16 33/25 10 68 L21 180/16 180/16 100/16 33/25 15 100 L20 120/25 120/25 100/16 33/25 40 150 L19 120/25 120/25 100/16 33/25 9 150 L10 82/16 82/16 100/16 33/25 0.2 20 220 L9 120/16 120/16 100/16 33/25 40 330 L8 120/16 120/16 100/16 33/25 12 0.5 15 68 L21 82/25 82/25 100/16 15/25 18 150 L19 82/25 82/25 100/16 15/25 30 220 L27 82/25 82/25 100/16 15/25 40 330 L26 82/25 82/25 100/16 15/25 15 100 L11 82/25 82/25 100/16 15/25 0.2 20 220 L9 82/25 82/25 100/16 15/25 40 330 L17 82/25 82/25 100/16 15/25 FIGURE 2. LM2594/LM2594HV Fixed Voltage Quick Design Component Selection Table www.national.com 11 |
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