LM2679T-3.3 National Semiconductor, LM2679T-3.3 Datasheet - Page 5

• Manufacturer Part Number: LM2679T-3.3
• Description: Power Supply IC
• Manufacturer: National Semiconductor

Specifications of LM2679T-3.3

• No. Of Outputs: 1
• No. Of Pins: 7
• Output Current: 5A
• Peak Reflow Compatible (260 C): No
• Output Voltage: 3.3VDC
• Termination Type: Through Hole
• Leaded Process Compatible: No
• Mounting Type: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Note 8: Junction to ambient thermal resistance for the 7 lead TO-263 mounted horizontally against a PC board area of 0.136 square inches (the same size as the
TO-263 package) of 1 oz. (0.0014 in. thick) copper.
Note 9: Junction to ambient thermal resistance for the 7 lead TO-263 mounted horizontally against a PC board area of 0.4896 square inches (3.6 times the area of
the TO-263 package) of 1 oz. (0.0014 in. thick) copper.
Note 10: Junction to ambient thermal resistance for the 7 lead TO-263 mounted horizontally against a PC board copper area of 1.0064 square inches (7.4 times the
area of the TO-263 package) of 1 oz. (0.0014 in. thick) copper. Additional copper area will reduce thermal resistance further. See the thermal model in Switchers Made
Simple
®
software.
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