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LM2597HVN-3.3 Datasheet(PDF) 11 Page - Texas Instruments

No. de pieza LM2597HVN-3.3
Descripción Electrónicos  LM2597/LM2597HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
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LM2597HVN-3.3 Datasheet(HTML) 11 Page - Texas Instruments

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LM2597, LM2597HV
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SNVS119C – MARCH 1998 – REVISED APRIL 2013
Typical Performance Characteristics (continued)
Continuous Mode Switching Waveforms
Discontinuous Mode Switching Waveforms
VIN = 20V, VOUT = 5V, ILOAD = 400 mA
VIN = 20V, VOUT = 5V, ILOAD = 200 mA
L = 100
μH, COUT = 120 μF, COUT ESR = 140 mΩ
L = 33
μH, COUT = 220 μF, COUT ESR = 60 mΩ
A: Output Pin Voltage, 10V/div.
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.2A/div.
B: Inductor Current 0.2A/div.
C: Output Ripple Voltage, 20 mV/div.
C: Output Ripple Voltage, 20 mV/div.
Figure 22. Horizontal Time Base: 2
μs/div.
Figure 23. Horizontal Time Base: 2
μs/div.
Load Transient Response for Continuous Mode
Load Transient Response for Discontinuous Mode
VIN = 20V, VOUT = 5V, ILOAD = 200 mA to 500 mA
VIN = 20V, VOUT = 5V, ILOAD = 100 mA to 200 mA
L = 100
μH, COUT = 120 μF, COUT ESR = 140 mΩ
L = 33
μH, COUT = 220 μF, COUT ESR = 60 mΩ
A: Output Voltage, 50 mV/div. (AC)
A: Output Voltage, 50 mV/div. (AC)
B: 100 mA to 200 mA Load Pulse
B: 200 mA to 500 mA Load Pulse
Figure 24. Horizontal Time Base: 50
μs/div.
Figure 25. Horizontal Time Base: 200
μs/div.
Copyright © 1998–2013, Texas Instruments Incorporated
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