LM2576S in LM2596 / LM2576 Switching Regulator Family
The LM2576S family, manufactured by Texas Instruments and several other vendors, consists of monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator. Capable of driving a 3A load with excellent line and load regulation, these devices operate at a fixed switching frequency of 52kHz. They are widely utilized for efficient voltage conversion in industrial and consumer power supplies, requiring a minimum number of external components to complete a robust circuit design.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Output Type | Output V | Stock |
|---|---|---|---|
| LM2576S-ADJ/NOPB (Texas Instruments) | Adjustable | 1.23V | 3,583 |
| LM2576S-5.0/NOPB (Texas Instruments) | Fixed | 5V | 5,888 |
Variants within the LM2576S family primarily differ by their output voltage options and package certifications. The family includes fixed output versions for 3.3V, 5V, 12V, and 15V, as well as an adjustable version (ADJ) that allows for a range between 1.23V and 37V. The 'NOPB' suffix denotes lead-free packaging, while some versions offer extended temperature ranges or automotive-grade qualification for high-reliability environments.
