Texas Instruments DCS-Control™ series TPS62091RGTT, Step-Down Buck Regulator, Fixed 3.3V Output, 3A, 2.8MHz Switching, Synchronous Rectifier, 16-VFQFN Exposed Pad, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | DCS-Control™ |
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 2.5V |
| Voltage - output (Min (Fixed)) | 3.3V |
| Output current | 3A |
| Frequency | 2.8MHz |
| I/O channels | 1 |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Step-Down |
| Topology | Buck |
| Case | 16-VFQFN Exposed Pad |
| Output configuration | Positive |
| Synchronous rectifier | Yes |
The Texas Instruments TPS62091RGTT is a 3 A synchronous step-down (buck) converter with a fixed 3.3 V output. It takes an input from 2.5 V up to 6 V and switches at 2.8 MHz.
At 3 A output, this is a mid-power rail regulator. Because the output is fixed at 3.3 V, the BOM loses the feedback resistor divider and the associated noise pickup path. That is a reliability win on a noisy board — one less node to decouple.
The difference is in the packaging and reel format — TPS62091RGTT is the Tape & Reel (TR) variant, while TPS62091RGTR is the Cut Tape (CT) version. The silicon and electrical specs are identical.
No. The DCS-Control topology integrates compensation internally, so no external RC network is needed. The BOM is just the input cap, output cap, and inductor.
Yes — the 2.5 V minimum input works with a single Li-ion cell down to its discharge cutoff, and the synchronous rectifier keeps efficiency high across the load range, which extends battery run time.