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LM2591HVS-3.3 Datasheet(PDF) 7 Page - Texas Instruments |
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LM2591HVS-3.3 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 29 page LM2591HV www.ti.com SNVS074D – MAY 2001 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) (Circuit of Test Circuit and Layout Guidelines) ON/OFF Pin Current (Sinking) Internal Gain-Phase Characteristics Figure 14. Figure 15. Continuous Mode Switching Waveforms Discontinuous Mode Switching Waveforms VIN = 20V, VOUT = 5V, ILOAD = 1A VIN = 20V, VOUT = 5V, ILOAD = 250 mA L = 52 μH, COUT = 100 μF, COUT ESR = 100 mΩ L = 15 μH, COUT = 150 μF, COUT ESR = 90 mΩ A: Output Pin Voltage, 10V/div. A: Output Pin Voltage, 10V/div. B: Inductor Current 0.5A/div. B: Inductor Current 0.25A/div. C: Output Ripple Voltage, 50 mV/div. C: Output Ripple Voltage, 100 mV/div. Figure 16. Horizontal Time Base: 2 μs/div. Figure 17. Horizontal Time Base: 2 μs/div. Load Transient Response for Continuous Mode Load Transient Response for Discontinuous Mode VIN = 20V, VOUT = 5V, ILOAD = 250 mA to 1A VIN = 20V, VOUT = 5V, ILOAD = 250 mA to 1A L = 52 μH, COUT = 100 μF, COUT ESR = 100 mΩ L = 15 μH, COUT = 150 μF, COUT ESR = 90 mΩ A: Output Voltage, 100 mV/div. (AC) B: 250 mA to 1A Load Pulse A: Output Voltage, 100 mV/div. (AC) B: 250 mA to 1A Load Pulse Figure 18. Horizontal Time Base: 50 μs/div. Figure 19. Horizontal Time Base: 200 μs/div. Copyright © 2001–2013, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM2591HV |
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