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LM2679T-3.3

National Semiconductor

Conv DC-DC Single Step Down 8V to 40V 7-Pin(7+Tab) TO-220 Rail

Datasheet Accessories Notify Me

RoHS Non-Compliant

Discontinued

Packaging

Certificate of Compliance Guarantee

Description +

Conv DC-DC Single Step Down 8V to 40V 7-Pin(7+Tab) TO-220 Rail

Product Highlights:

•	Efficiency up to 92%
•	Simple and easy to design with (using off-the-shelf external components)
•	Resistor programmable peak current limit over a range of 3A to 7A.
•	120 mΩ DMOS output switch
•	3.3V, 5V and 12V fixed output and adjustable (1.2V to 37V ) versions
•	±2%maximum output tolerance over full line and load conditions
•	Wide input voltage range: 8V to 40V
•	260 KHz fixed frequency internal oscillator
•	Softstart capability
•	−40 to +125°C operating junction temperature range

Potential Applications:

•	Simple to design, high efficiency (>90%) step-down switching regulators
•	Efficient system pre-regulator for linear voltage regulators
•	Battery chargers

Search Keywords: LM2679T33

SPECS +