National LM2576 LM2576HV Series Specifications User Guide
Summary
This high-efficiency, simple switcher provides robust step-down (buck) voltage regulation for critical power applications. Rated for up to 3A and incorporating adjustable outputs at common voltages (3.3V, 5V, 12V, 15V), it is ideal for engineers designing compact and reliable power supplies. The accompanying documentation serves as a comprehensive reference guide, detailing precise electrical characteristics, operating ratings, and various physical package types needed to seamlessly integrate this powerful regulator into your circuit design.
Manual Details
| Brand | National |
|---|---|
| Pages | 24 |
| File Size | 732.26 KB |
| Published | May 27, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What is the maximum current this regulator can handle?
The LM2576 series is capable of driving a 3A load.
How many external components are needed to use the HV version?
The HV version requires only 4 external components, simplifying design.
Does it provide protection against faults and overheating?
Yes, it includes thermal shutdown, current limit protection, and cycle-by-cycle current limiting.
What is its capability regarding voltage polarity?
It supports a Positive to Negative converter (Buck-Boost) function.