Texas Instruments TPS62321DRCR, step-down (buck) DC-DC converter, 3 MHz switching frequency, 500 mA output, 2.7 V to 6 V input, fixed 1.5 V output, synchronous rectifier, 10-VSON (3x3 mm) package, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 2.7V |
| Voltage - output (Min (Fixed)) | 1.5V |
| Output current | 500mA |
| Frequency - switching | 3MHz |
| I/O channels | 1 |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Step-Down |
| Topology | Buck |
| Case | 10-VFDFN Exposed Pad |
| Output configuration | Positive |
| Synchronous rectifier | Yes |
The TPS62321DRCR: The 3 MHz switching frequency is the key enabler for small external components: you can use a 1 µH to 2.2 µH inductor and a 10 µF ceramic output cap, keeping the total footprint under 15 mm².
The part comes in a 10-VFDFN with exposed pad (3x3 mm VSON package).
The switching frequency is 3 MHz, which enables small external inductor and capacitor values.