Texas Instruments SIMPLE SWITCHER® series, LM25576MH/NOPB step-down (buck) regulator, adjustable output, 3 A output, 6 V to 42 V input, 20-PowerTSSOP (HTSSOP) package, tube.
| Parameter | Value |
|---|---|
| Series | SIMPLE SWITCHER® |
| Output type | Adjustable |
| Mounting | Surface Mount |
| Voltage - input | 42V |
| Voltage - output | 40V |
| Voltage - output (Min (Fixed)) | 1.225V |
| Output current | 3A |
| Frequency | 50kHz ~ 1MHz |
| I/O channels | 1 |
| Operating temperature | -40°C ~ 125°C (TJ) |
| Package | Tube |
| Function | Step-Down |
| Topology | Buck |
| Case | 20-PowerTSSOP (0.173\", 4.40mm Width) |
| Output configuration | Positive |
| Synchronous rectifier | No |
The LM25576MH/NOPB: The switching frequency is programmable from 50 kHz to 1 MHz, letting the designer trade off inductor size against efficiency — lower frequencies reduce switching losses in the internal FET, while higher frequencies shrink the magnetics for a denser layout.