Texas Instruments TPS65253RHDR, dual-output step-down buck regulator, adjustable output from 0.8V to 15V, 3.5A and 2.5A continuous output, 28-VFQFN exposed pad package, industrial temp range -40°C to 85°C.
| Parameter | Value |
|---|---|
| Output type | Adjustable |
| Mounting | Surface Mount |
| Voltage - input | 4.5V |
| Voltage - output | 15V |
| Voltage - output (Min (Fixed)) | 0.8V |
| Output current | 3.5A, 2.5A |
| Frequency - switching | 300kHz ~ 1.2MHz |
| I/O channels | 2 |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Step-Down |
| Topology | Buck |
| Case | 28-VFQFN Exposed Pad |
| Output configuration | Positive |
| Synchronous rectifier | Yes |
The TPS65253RHDR is a dual-output synchronous buck regulator from Texas Instruments. It delivers 3.5 A on one channel and 2.5 A on the other, with both outputs adjustable from 0.8 V up to 15 V from a 4.5 V to 16 V input rail.
ROHS3 compliant.
At 300 kHz you use a larger inductor but get lower switching losses; at 1.2 MHz the inductor shrinks but the driver losses climb.
The LM53625LQURNLRQ1 is also single-output, fixed 5 V, 2.5 A, automotive rated. Neither is a drop-in dual-output replacement — the TPS65253RHDR's dual 3.5 A / 2.5 A channels are unique in this footprint.