Texas Instruments LM27222M, Half-Bridge N-Channel MOSFET Driver, 2 Drivers, 3A Source / 4.5A Sink Peak Output, 4V–6.85V Supply, 17ns Rise / 12ns Fall, 8-SOIC, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Gate type | N-Channel MOSFET |
| Input type | Non-Inverting |
| Channel type | Synchronous |
| Mounting | Surface Mount |
| Supply voltage | 4V ~ 6.85V |
| High side voltage - max (Bootstrap) | 33 V |
| Current - peak output (Source, sink) | 3A, 4.5A |
| Operating temperature | -40°C ~ 125°C (TJ) |
| Package | Bulk |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Number of drivers | 2 |
| Driven configuration | Half-Bridge |
| Rise (Fall time) | 17ns, 12ns |
The LM27222M comes in an 8-SOIC package (0.154" body width, 3.90 mm). Eight pins, standard SOIC footprint — rework is straightforward with hot air or a fine-tip iron. The thermal pad is absent on this package, so all heat goes through the leads; keep the copper pour under the part generous if the driver is switching continuously at high frequency.
The RoHS status is marked non-compliant. If your project mandates RoHS, the LM5106MM/NOPB is a functional alternative.
Yes. The driven configuration is half-bridge, and the gate type is N-channel MOSFET — exactly what a synchronous buck converter needs. The 3A/4.5A peak output and 17ns/12ns rise/fall times are well suited for the high-side and low-side FETs in a synchronous buck stage.
Yes. The 4V to 6.85V supply range covers 5V logic rails exactly. The non-inverting input accepts standard 5V logic levels directly.