Texas Instruments DCS-Control™ series, TPS62171DSGR, step-down buck converter, fixed 1.8V output, 500 mA, 2.25 MHz switching, 8-WFDFN exposed pad package, -40°C to 85°C ambient.
| Parameter | Value |
|---|---|
| Series | DCS-Control™ |
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 17V |
| Voltage - output (Min (Fixed)) | 1.8V |
| Output current | 500mA |
| Frequency - switching | 2.25MHz |
| I/O channels | 1 |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Step-Down |
| Topology | Buck |
| Case | 8-WFDFN Exposed Pad |
| Output configuration | Positive |
| Synchronous rectifier | Yes |
The TPS62171DSGR: This is a fixed-output buck converter delivering 1.8 V at up to 500 mA. The 3 V to 17 V input range covers common 5 V, 12 V, or unregulated intermediate buses. The 2.25 MHz switching frequency lets the layout engineer use small inductors and capacitors — typically 2.2 µH and 10 µF — shrinking the PCB footprint.
The closest functional second-source within the same current class is the LM53625LQURNLRQ1, which also uses a buck topology with synchronous rectification and a 2.1 MHz switching frequency. However, the LM53625LQURNLRQ1 is an automotive AEC-Q100 part rated to 150°C junction and delivers 2.5 A output — a higher current and temperature grade than the TPS62171DSGR. For a direct 500 mA drop-in, check the TPS62170 series (same base product number family,) with different fixed output voltages.