SI3402-A-GM vs SI3402-B-GM 对比
详细并排对比 SI3402-A-GM 出自 Skyworks Solutions 和 SI3402-B-GM 出自 Skyworks Solutions。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | SI3402-A-GM | SI3402-B-GM |
|---|---|---|
| 品牌 | Skyworks Solutions | Skyworks Solutions |
| 分类 | Voltage Regulators | Power MOSFET Drivers |
| 生命周期状态 | 最后采购期 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $1.92 | $2.45 |
| Product Type | PoE Powered Device (PD) Controller with integrated switching regulator | — |
| PoE Standard | IEEE 802.3af (Type 1, Class 3) | — |
| Maximum Output Power | 17 W | 15 W (Class 3) / 13 W typical |
| Input Voltage Range (PoE) | 37 V to 57 V DC | 37 V to 57 V |
| Input Voltage Transient Tolerance | 100 V absolute max | — |
| 输出电压 | Adjustable (typical 3.3 V, 5 V, 12 V via external components) | — |
| Switching Topology | Synchronous buck PWM with low-EMI frequency dithering | — |
| Integrated Diode Bridges | Yes (on-chip) | Yes (both pairs) |
| Integrated Hot-Swap FET | Yes (internal pass device) | — |
| Number of Channels | 1 | 1 |
| 工作温度 | -40 C to +85 C | -40C to +85C |
| 封装 | 20-QFN (5x5 mm) with exposed pad | 20-QFN (5x5 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 2 | — |
| RoHS 状态 | Compliant | Compliant |
| 功能 | — | PoE PD Interface + Switching Regulator |
| Standard Compliance | — | IEEE 802.3af / 802.3at (Type 1) Class 0-3 |
| Integrated Hotswap FET | — | Yes (dual current-limited) |
| Integrated Surge Suppressor | — | Yes (transient) |
| 开关稳压器 | — | PWM with integrated power FET |
| 输出电压范围 | — | [DATA_NEEDED: Vout min/max] |
| Pin-Compatible Replacement | — | Si3402-A (obsolete) |