LT8646 vs LT8646SIV#WPBF 比較
詳細並排比較 LT8646 由 Analog Devices 與 LT8646SIV#WPBF 由 Analog Devices. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
規格比較
| 參數 | LT8646 | LT8646SIV#WPBF |
|---|---|---|
| 品牌 | Analog Devices | Analog Devices |
| 類別 | DC-DC Converters | DC-DC Converters |
| 生命週期狀態 | 啟用中 | 啟用中 |
| 拓撲 | Synchronous Step-Down (Buck) | Synchronous Step-Down (Buck) |
| 輸入電壓範圍 | 3 V to 65 V (65 V abs max) | 3.4 V to 65 V |
| 輸出電壓範圍 | 0.97 V to VIN (adjustable) | 0.97 V to 64 V (adjustable) |
| 最大輸出電流 | 8 A continuous | 8 A |
| 靜態電流 | 2.5 µA (typical at no load) | — |
| 切換頻率 | 200 kHz to 3 MHz (programmable, synchronisable) | — |
| Architecture | Silent Switcher 2 with internal bypass capacitors | Silent Switcher 2 with integrated bypass capacitors |
| 效率 | >95 % at 12V to 3.3V/8A | — |
| Internal MOSFETs | Yes (high-side and low-side integrated) | Top + bottom N-channel MOSFET switches |
| Spread Spectrum | Yes (selectable) | — |
| 軟啟動 | Internal, programmable | — |
| Output Over-Voltage Protection | Yes (latch-off) | — |
| 過熱關機 | Yes | — |
| 工作接面溫度 | -40 °C to +125 °C | — |
| 封裝 | 32-TFQFN Exposed Pad (5 mm × 6 mm) | 32-pin LQFN (6 mm x 4 mm) with Exposed Pad |
| 安裝類型 | Surface Mount | Surface Mount |
| RoHS 狀態 | Compliant | Compliant |
| Switching Frequency Range | — | 200 kHz to 2.2 MHz (programmable) |
| Quiescent Current (Burst Mode) | — | 2.5 µA typical |
| Peak Efficiency | — | 96% |
| 工作溫度範圍 | — | -40°C to +125°C (-IV suffix) |
| MSL 等級 | — | 3 (per JEDEC J-STD-020) |
| Automotive Qualification | — | AEC-Q100 (Automotive grade per Arrow listing) |
| Synchronization | — | External clock sync input |
| Power Good Flag | — | Yes |
| Thermal Resistance (θJA) | — | ~25°C/W on 4-layer JEDEC board (estimated from package family) |