Texas Instruments TPS5430DDAG4, Step-Down Buck Converter, Adjustable Output, 3 A, 5.5 V to 36 V Input, 500 kHz, -40°C to 125°C, 8-PowerSOIC (PowerPad).
| Parameter | Value |
|---|---|
| Output type | Adjustable |
| Mounting | Surface Mount |
| Voltage - input | 5.5V |
| Voltage - output | 32.04V |
| Voltage - output (Min (Fixed)) | 1.221V |
| Output current | 3A |
| Frequency | 500kHz |
| I/O channels | 1 |
| Operating temperature | -40°C~125°C(TJ) |
| Package | Tube |
| Function | Step-Down |
| Topology | Buck |
| Case | 8-PowerSOIC (0.154\", 3.90mm Width) |
| Output configuration | Positive |
| Synchronous rectifier | No |
The TPS5430DDAG4 is a 3 A continuous, adjustable-output buck converter from TI's TPS5430 family, switching at 500 kHz.
The input range from 5.5 V to 36 V covers 12 V and 24 V industrial buses, plus 5 V rails with margin.
This is a non-synchronous buck — it needs an external Schottky catch diode. That adds a BOM line and a bit of board area, but it eliminates the shoot-through risk of integrated synchronous FETs.
The TPS5430DDAG4 ships in tube packaging, while the TPS5430DDAR is the tape-and-reel variant. The silicon, package, and electrical ratings are identical. The DDAR suffix is the reeled version for high-volume pick-and-place.
Yes — the TPS5430DDAG4 is a direct replacement for the TPS5430DDA. The G4 suffix indicates a RoHS-compliant version of the same device. Pinout, package, and electrical specifications are identical.
Yes, the G4 suffix on TPS5430DDAG4 designates a RoHS-compliant, lead-free finish. It is compatible with standard lead-free reflow profiles.