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| Part number | Type | PoE Protocal | VIN(V) | MOSFET | RDSON(Ω) | Inrush current(mA) | Topology | FSW(KHz) | MOSFET Position | Load Current(mA) | AUX | MPS | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SD4923E | PD | af/at | 0~60 | Internal | 0.6 | 180 | / | / | Low side | 850 | N | N | ESOP-8 |
| SD4923H | PD | af/at | 0~60 | Internal | 0.55 | 130 | / | / | Low side | 960 | N | Y | ESOP-8 |
| SD4924S | PD | af/at | 0~60 | Internal | 0.6 | 180 | / | / | Low side | 850 | N | N | SOP-8 |
| SD4924C | PD | af/at | 0~60 | Internal | 0.55 | 130 | / | / | Low side | 850 | N | N | SOP-8 |
| SD4928 | PD | af/at/bt | 0~60 | External | / | Adjustable | / | / | High side | / | Y | N | MSOP-10 |
| SD4929NN | PD | af/at/PoE++ | 0~60 | External | / | Adjustable | / | / | High side | / | Y | N | DFN3*3-10 |
| SD4950 | PD & DCDC | af | 36~60 | Internal | 0.6 | 180 | Flyback-PSR | 180 | Low side | 960 | N | N | SOP-8 |
| SD4952B | PD & DCDC | af | 36~60 | Internal | 0.6 | 180 | Flyback-PSR | 180 | Low side | 850 | N | N | SOP-16 |
| SD4952C | PD & DCDC | af | 36~60 | Internal | 0.55 | 180 | Flyback-PSR | 180 | Low side | 850 | N | Y | SOP-16 |
| SD4954B | PD & DCDC | af | 36~60 | Internal | 0.6 | 180 | Flyback-SSR/Buck | 180 | Low side | 850 | N | N | SOP-16 |
| SD4955A | PD & DCDC | af | 36~60 | Internal | 0.6 | 180 | Sync Flyback-PSR | 250 | Low side | 960 | N | N | QFN5*5-32 |
| SD4957 | PD & DCDC | at | 7.5~70 | Internal | 0.55 | 120 | Sync Flyback/Forward | 250 | Low side | 840 | Y | Y | QFN5*5-32 |
