LT8645SEV#PBF vs LT8645SEV-2 对比
详细并排对比 LT8645SEV#PBF 出自 Analog Devices 和 LT8645SEV-2 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。
Analog Devices
LT8645SEV#PBF - 65V 8A Silent Switcher Buck Regulator | Analog Devices
LT8645SEV#PBF ✓ 量产中
规格对比
| 参数 | LT8645SEV#PBF | LT8645SEV-2 |
|---|---|---|
| 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） | $5.18 | $6.20 |
| 拓扑 | Synchronous Buck (Step-Down) | Synchronous Step-Down (Buck) |
| 输入电压范围 | 3.4 V to 65 V | 3.4 V to 65 V |
| 输出电压范围 | 0.97 V to 25 V (adjustable) | 0.97 V to VIN (adjustable) |
| 最大输出电流 | 8 A | 8 A continuous |
| 输出数量 | 1 | — |
| Switching Frequency Range | 200 kHz to 2.2 MHz | — |
| Architecture | Silent Switcher 2nd generation | Silent Switcher (2nd generation) |
| Internal Switches | Yes (top + bottom N-channel MOSFETs) | Integrated high-side + low-side MOSFETs |
| 静态电流 | Ultra-low (see datasheet for Iq) | 2.5 µA (no-load, output regulated) |
| 效率 | > 95% peak | — |
| 工作温度范围 | -40 C to +125 C (automotive grade) | -40°C to +125°C |
| 封装 | 32-pin LQFN EP (5 mm x 6 mm) | 32-TFQFN Exposed Pad (LQFN-32, 5x6 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 | [DATA_NEEDED: MSL level] |
| RoHS 状态 | Compliant (#PBF suffix) | Compliant (per #PBF suffix) |
| 开关频率 | — | Programmable ~200 kHz to 2.2 MHz |
| Minimum On-Time | — | Approx. 30 ns |
| Peak Efficiency | — | >92% (typ. at 12V→5V) |
| Internal Bypass Capacitors | — | Yes (EMI reduction) |
| PGOOD / SYNC | — | Power-good flag and synchronization input |