LT8645SHV-2#PBF vs LT8640EUDC#TRPBF 对比
详细并排对比 LT8645SHV-2#PBF 出自 Analog Devices 和 LT8640EUDC#TRPBF 出自 Analog Devices。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 | LT8645SHV-2#PBF | LT8640EUDC#TRPBF |
|---|---|---|
| 品牌 | Analog Devices | Analog Devices |
| 分类 | DC-DC Converters | DC-DC Converters |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $8.10 | $5.48 |
| 拓扑 | Synchronous Step-Down (Buck) | Synchronous Buck (Step-Down) |
| 输入电压范围 | 3.4 V to 65 V | 3.4 V to 42 V |
| 输出电压范围 | 0.97 V to 65 V (adjustable) | 0.97 V to 41.58 V (adjustable) |
| 最大输出电流 | 8 A | 5 A |
| 输出数量 | 1 | 1 |
| 开关频率 | Up to 2.2 MHz | Up to 3 MHz (programmable) |
| 静态电流 | 2.5 µA (Burst Mode) | 2.5 µA (output in regulation, Burst Mode) |
| Architecture | Silent Switcher 2nd generation | Silent Switcher (low EMI) |
| Internal Switches | Yes (high-side and low-side MOSFETs) | — |
| Internal Bypass Capacitors | Yes (integrated) | — |
| 工作结温 | -40 °C to +150 °C (HV grade) | -40 °C to +125 °C (E grade, design assured over -40 to +125) |
| 封装 | 32-pin LQFN Exposed Pad | 20-WFQFN / 18-lead QFN with Exposed Pad (LGA-style UD package) |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS 状态 | Compliant | Compliant (Pb-free) |
| Lead-Free | Yes (#PBF suffix) | — |
| Minimum Switch On-Time | — | 30 ns (top switch) |
| Mode Selection | — | Burst Mode / Spread Spectrum / External Sync / Pulse-Skipping / Forced Continuous |
| MSL 等级 | — | 1 |
| Output Polarity | — | Positive |