LM2675 National Semiconductor datasheet manual user guide
Summary
Power your sensitive electronics with this high-efficiency, simple step-down (buck) voltage converter. Designed for engineers building robust DC/DC power supplies, it ensures reliable current regulation up to 1A while maximizing efficiency. The comprehensive guide details product specifications, application circuits, and ordering instructions for various fixed and adjustable output voltages. Simplify your PCB design with its minimal component requirements and integrated protective features.
Manual Details
| Brand | National |
|---|---|
| Pages | 26 |
| File Size | 920.07 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the high efficiency of the LM2675 regulator?
It has up to 96% efficiency, making it a simple and efficient step-down converter.
Does the LM2675 support adjustable output voltages?
Yes, the ADJ version allows an adjustable output voltage range from 1.21V to 37V.
What is the normal operating frequency of the regulator?
The device operates at a switching frequency of 260 kHz fixed internal oscillator.
Can this regulator handle varying input voltages?
It has a wide input voltage range, spanning from 8V to 40V.
How is output voltage regulated across load changes?
It guarantees a ±1.5% max output voltage tolerance over line and load.