LT8640IUDC-1#PBF vs LT8640SEV#PBF 对比
详细并排对比 LT8640IUDC-1#PBF 出自 Analog Devices 和 LT8640SEV#PBF 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 | LT8640IUDC-1#PBF | LT8640SEV#PBF |
|---|---|---|
| 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） | $5.10 | $6.93 |
| 拓扑 | Synchronous Buck (Step-Down) | Synchronous Step-Down (Buck) |
| 输入电压范围 | 3.4 V to 42 V | 3.4 V to 42 V |
| 输出电压范围 | 0.97 V to 41.58 V (adjustable) | 0.97 V to 10 V (adjustable) |
| 最大输出电流 | 5 A | 6 A |
| Switching Frequency Range | 200 kHz to 3 MHz | — |
| Minimum Top Switch On-Time | 30 ns | 30 ns |
| Quiescent Current (Burst Mode) | 2.5 uA | — |
| 工作温度范围 | -40C to +125C (TJ) | — |
| 封装 | 20-WFQFN, 18 leads, exposed pad (3 mm x 4 mm) | — |
| 安装类型 | Surface Mount | Surface Mount |
| Mode (LT8640-1) | Forced Continuous PWM at light load | — |
| Mode Selection | Burst / Spread-Spectrum / SYNC / Forced-Continuous via SYNC/MODE pin | — |
| Efficiency (architectural claim) | Silent Switcher architecture, low-EMI | — |
| MSL 等级 | 1 (unlimited) | — |
| Lead-Free / RoHS | Yes (PBF suffix) | — |
| Switching Architecture | — | Silent Switcher 2 |
| 静态电流 | — | 2.5 uA (Burst Mode) |
| 同步整流器 | — | Internal MOSFETs |
| 工作结温 | — | -40 C to +125 C |
| Package Type | — | 24-lead LQFN with Exposed Pad |
| Package Dimensions | — | 4 mm x 4 mm |
| Thermal Resistance (theta_JC) | — | [DATA_NEEDED: theta_JC from datasheet] |
| 开关频率 | — | Adjustable, up to ~3 MHz [DATA_NEEDED: exact fSW range] |
| Sync/Clock Input | — | Yes (SYNC/MODE pin) |
| Spread Spectrum EMI Reduction | — | Yes |
| MSL Moisture Sensitivity | — | [DATA_NEEDED: MSL level] |
| RoHS 状态 | — | Compliant |
| Lead Finish | — | Au (Gold) - PBF suffix |
| Manufacturer | — | Analog Devices (formerly Linear Technology) |