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LM2594 Scheda tecnica(PDF) 6 Page - ON Semiconductor |
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LM2594 Scheda tecnica(HTML) 6 Page - ON Semiconductor |
6 / 25 page LM2594 http://onsemi.com 6 2.0 2.5 3.0 4.0 TJ, JUNCTION TEMPERATURE (°C) SWITCH CURRENT (A) TJ, JUNCTION TEMPERATURE (°C) Figure 9. Switch Saturation Voltage Figure 10. Switching Frequency Figure 11. Minimum Supply Operating Voltage Figure 12. Feedback Pin Current 5.0 4.5 3.5 1.5 1.0 0.5 0 125 100 75 50 25 0 -25 -50 TJ, JUNCTION TEMPERATURE (°C) 100 80 60 40 20 0 -20 -40 -60 -80 -100 125 100 75 50 25 0 -25 -50 Vout ' 1.23 V ILoad = 100 mA TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 16) −9.0 −8.0 −7.0 −6.0 −5.0 −4.0 −3.0 −2.0 −1.0 0.0 1.0 −50 −25 0 25 50 75 100 125 −40°C 25°C 125°C 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0 0.1 0.2 0.3 0.4 0.5 VIN, INPUT VOLTAGE (V) 95 90 85 80 75 70 045 540 35 30 25 20 10 15 Figure 13. Efficiency 12 V, 500 mA 5 V, 500 mA 3.3 V, 500 mA |
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