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LM2673S-ADJ Fiches technique(PDF) 7 Page - National Semiconductor (TI) |
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LM2673S-ADJ Fiches technique(HTML) 7 Page - National Semiconductor (TI) |
7 / 26 page Typical Performance Characteristics (Continued) Switching Frequency Feedback Pin Bias Current 10091312 10091313 Load Transient Response for Continuous Mode V IN = 20V, VOUT =5V L = 33 µH, C OUT = 200 µF, COUTESR=26 m Ω Load Transient Response for Discontinuous Mode V IN = 20V, VOUT = 5V, L = 10 µH, C OUT = 400 µF, COUTESR=13 m Ω 10091317 A: Output Voltage, 100 mV//div, AC-Coupled. B: Load Current: 500 mA to 3A Load Pulse Horizontal Time Base: 100 µs/div 10091318 A: Output Voltage, 100 mV/div, AC-Coupled. B: Load Current: 200 mA to 3A Load Pulse Horizontal Time Base: 200 µs/div Continuous Mode Switching Waveforms V IN = 20V, VOUT = 5V, ILOAD =3A L = 33 µH, C OUT = 200 µF, COUTESR=26 m Ω Discontinuous Mode Switching Waveforms V IN = 20V, VOUT = 5V, ILOAD = 500 mA L = 10 µH, C OUT = 400 µF, COUTESR=13 m Ω 10091315 A: VSW Pin Voltage, 10 V/div. B: Inductor Current, 1 A/div C: Output Ripple Voltage, 20 mV/div AC-Coupled Horizontal Time Base: 1 µs/div 10091316 A: VSW Pin Voltage, 10 V/div. B: Inductor Current, 1 A/div C: Output Ripple Voltage, 20 mV/div AC-Coupled Horizontal Time Base: 1 µs//iv www.national.com 7 |
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