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LM2671 Fiches technique(PDF) 9 Page - Texas Instruments |
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LM2671 Fiches technique(HTML) 9 Page - Texas Instruments |
9 / 31 page LM2671 www.ti.com SNVS008K – SEPTEMBER 1998 – REVISED APRIL 2013 Typical Performance Characteristics (Circuit of Figure 22) Continuous Mode Switching Waveforms Discontinuous Mode Switching Waveforms VIN = 20V, VOUT = 5V, ILOAD = 500 mA VIN = 20V, VOUT = 5V, ILOAD = 300 mA L = 100 μH, COUT = 100 μF, COUTESR = 0.1Ω L = 15 μH, COUT = 68 μF (2×), COUTESR = 25 mΩ A: VSW Pin Voltage, 10 V/div. A: VSW Pin Voltage, 10 V/div. B: Inductor Current, 0.2 A/div B: Inductor Current, 0.5 A/div C: Output Ripple Voltage, 50 mV/div AC-Coupled C: Output Ripple Voltage, 20 mV/div AC-Coupled Figure 18. Horizontal Time Base: 1 μs/div Figure 19. Horizontal Time Base: 1 μs/div Load Transient Response for Continuous Mode Load Transient Response for Discontinuous Mode VIN = 20V, VOUT = 5V VIN = 20V, VOUT = 5V, L = 100 μH, COUT = 100 μF, COUTESR = 0.1Ω L = 47 μH, COUT = 68 μF, COUTESR = 50 mΩ A: Output Voltage, 100 mV/div, AC-Coupled A: Output Voltage, 100 mV/div, AC-Coupled B: Load Current: 100 mA to 500 mA Load Pulse B: Load Current: 100 mA to 400 mA Load Pulse Figure 20. Horizontal Time Base: 50 μs/div Figure 21. Horizontal Time Base: 200 μs/div Copyright © 1998–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM2671 |
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