Texas Instruments · SIMPLE SWITCHER® Series
Texas Instruments SIMPLE SWITCHER® series, LM2574N-ADJ/NOPB, Step-Down Buck regulator, Adjustable output, 500mA, 52kHz, 8-DIP (0.300", 7.62mm), Through Hole, Tube.
MOQ 1 · Tube · RoHS · EIA-481 · DAP/DDP · T/T
| Parameter / Attribute | Specification / Value |
|---|---|
| Series | SIMPLE SWITCHER® |
| Output type | Adjustable |
| Mounting | Through Hole |
| Voltage - input | 40V |
| Voltage - output | 37V |
| Voltage - output (Min (Fixed)) | 1.23V |
| Output current | 500mA |
| Frequency - switching | 52kHz |
| I/O channels | 1 |
| Operating temperature | -40°C ~ 125°C (TJ) |
| Package | Tube |
| Function | Step-Down |
| Topology | Buck |
| Case | 8-DIP (0.300\", 7.62mm) |
| Output configuration | Positive |
| Synchronous rectifier | No |
The LM2574N-ADJ/NOPB: Housed in an 8-pin PDIP (0.300" wide, 7.62 mm pitch), it is a through-hole part suited for prototype builds, rework-friendly designs, or legacy BOM positions that avoid surface-mount assembly.
The internal oscillator runs at 52 kHz — a low switching frequency that reduces switching losses at the cost of a larger inductor and output capacitor compared to modern 500 kHz+ parts.