LM2673S-5.0 National Semiconductor, LM2673S-5.0 Datasheet - Page 8

• Manufacturer Part Number: LM2673S-5.0
• Description: DC/DC Converter IC
• Manufacturer: National Semiconductor

Specifications of LM2673S-5.0

• Input Voltage: 40V
• Output Current: 3A
• Output Voltage: 5V
• No. Of Pins: 7
• Termination Type: SMD
• Mounting Type: Through Hole
• Voltage Regulator Type: Switching
• Output Current Max: 3A
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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A: V
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Block Diagram
* Active Inductor Patent Number 5,514,947
† Active Capacitor Patent Number 5,382,918
SW
Pin Voltage, 10 V/div.
L = 33 μH, C
Continuous Mode Switching Waveforms
V
Horizontal Time Base: 1 μs/div
IN
= 20V, V
OUT
= 200 μF, C
OUT
= 5V, I
OUT
LOAD
ESR = 26 mΩ
= 3A
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8
A: V
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
SW
Pin Voltage, 10 V/div.
Discontinuous Mode Switching Waveforms
L = 10 μH, C
V
IN
Horizontal Time Base: 1 μs//iv
= 20V, V
OUT
OUT
= 400 μF, C
= 5V, I
LOAD
OUT
ESR = 13 mΩ
= 500 mA
10091316
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