Texas Instruments TPS65263QRHBTQ1, Automotive AEC-Q100, triple-output step-down buck regulator, 3A/2A/2A, 4V-18V input, programmable output, 32-VQFN (5x5) package.
| Parameter | Value |
|---|---|
| Series | Automotive, AEC-Q100 |
| Output type | Programmable |
| Mounting | Surface Mount |
| Voltage - input | 18V |
| Voltage - output | 6.3V |
| Voltage - output (Min (Fixed)) | 0.68V |
| Output current | 3A, 2A, 2A |
| Frequency - switching | 200kHz ~ 2.3MHz |
| I/O channels | 3 |
| Operating temperature | -40°C~125°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Step-Down |
| Topology | Buck |
| Case | 32-VFQFN Exposed Pad |
| Output configuration | Positive |
| Synchronous rectifier | Yes |
It delivers 3A on the primary channel and 2A on each of the two secondary channels, all from a single 4V to 18V input rail.
Output voltage is programmable from a minimum of 0.68V up to 6.3V, covering core, I/O, and peripheral rails in a typical automotive ECU.
The primary output is rated for 3A, and the two secondary outputs are each rated for 2A. Total system current is the sum of the three rails, limited by thermal dissipation in the 32-VQFN package.
The base product number is TPS65263. The suffix QRHBTQ1 vs QRHBT indicates different packaging or qualification variants. Confirm pin compatibility from the respective datasheets before substituting on an existing board.