LM2576T in LM2596 / LM2576 Switching Regulator Family
The LM2576T series is a staple family of monolithic step-down switching regulators designed by Texas Instruments and other manufacturers. These devices provide all active functions for a buck converter, capable of driving a 3A load with excellent line and load regulation. Operating at a fixed frequency of 52 kHz, the family is engineered to simplify power supply design by requiring a minimal number of external components while offering high efficiency compared to popular three-terminal linear regulators like the LM317.
Variants in This Sub-Family
| Part Number | Difference | Stock |
|---|---|---|
| LM2576T-ADJ/NOPB (Texas Instruments) | NOPB | 993 |
Variants within the LM2576T sub-family primarily differ by output voltage configuration and lead forming. Options include fixed output voltages of 3.3V, 5V, 12V, or 15V, as well as an adjustable version (ADJ) that spans 1.23V to 37V. Mechanical differences like the LF03 suffix indicate formed leads for specific PCB mounting profiles, while NOPB denotes lead-free packaging compliance for RoHS standards.
