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LM2673 датащи(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
номер детали LM2673
подробное описание детали  SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit
PDF  26 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2673 датащи(HTML) 7 Page - National Semiconductor (TI)

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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
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