LT8645SEV#PBF vs LT8646 对比
详细并排对比 LT8645SEV#PBF 出自 Analog Devices 和 LT8646 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 | LT8646 |
|---|---|---|
| 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 | $5.18 |
| 拓扑 | Synchronous Buck (Step-Down) | Synchronous Step-Down (Buck) |
| 输入电压范围 | 3.4 V to 65 V | 3 V to 65 V (65 V abs max) |
| 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 2 with internal bypass capacitors |
| Internal Switches | Yes (top + bottom N-channel MOSFETs) | — |
| 静态电流 | Ultra-low (see datasheet for Iq) | 2.5 µA (typical at no load) |
| 效率 | > 95% peak | >95 % at 12V to 3.3V/8A |
| 工作温度范围 | -40 C to +125 C (automotive grade) | — |
| 封装 | 32-pin LQFN EP (5 mm x 6 mm) | 32-TFQFN Exposed Pad (5 mm × 6 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 | — |
| RoHS 状态 | Compliant (#PBF suffix) | Compliant |
| 开关频率 | — | 200 kHz to 3 MHz (programmable, synchronisable) |
| Internal MOSFETs | — | Yes (high-side and low-side integrated) |
| Spread Spectrum | — | Yes (selectable) |
| 软启动 | — | Internal, programmable |
| Output Over-Voltage Protection | — | Yes (latch-off) |
| 热关断 | — | Yes |
| 工作结温 | — | -40 °C to +125 °C |