LTC3884EUK vs LTC2974IUP#PBF 对比
详细并排对比 LTC3884EUK 出自 Analog Devices 和 LTC2974IUP#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 | LTC3884EUK | LTC2974IUP#PBF |
|---|---|---|
| 品牌 | Analog Devices | Analog Devices |
| 分类 | DC-DC Converters | Supervisors & Reset |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $7.50 | $9.20 |
| 拓扑 | Buck (Step-Down), Synchronous | — |
| 输出数量 | 2 | — |
| 输出配置 | Positive | — |
| 输出类型 | Transistor Driver | — |
| 功能 | Step-Down DC-DC Controller | 4-channel PMBus Power System Manager |
| Supply Voltage (Vcc/Vdd) | 4.5 V to 38 V | — |
| 开关频率 | 200 kHz to 1 MHz | — |
| Duty Cycle (Max) | 96% | — |
| 同步整流器 | Yes | — |
| 控制特性 | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | — |
| Serial Interface | I2C / PMBus compliant | I2C/SMBus, PMBus-compliant |
| Current Sensing | Sub-milliohm DCR sensing | — |
| 工作温度 | -40C to +125C (junction) | — |
| 封装 | 48-QFN (7x7 mm) with exposed pad | 64-lead QFN (UP), 9 mm x 9 mm |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | [DATA_NEEDED: MSL rating] | 3 (per JEDEC J-STD-020) |
| RoHS 状态 | Compliant (PBF suffix) | Compliant |
| Number of Outputs Supervised | — | 4 |
| Output Voltage Servo Accuracy | — | 0.5% (over temperature) |
| On-chip ADC | — | 12-bit (VIN/VOUT readback) |
| On-chip DACs | — | 4 x 10-bit (trim/margin) |
| User EEPROM | — | 256 bytes with CRC |
| Fault Logging | — | Yes, black-box with time-stamp |
| Supply Voltage (VCC) | — | 4.5 V to 15 V |
| Digital I/O Logic Level | — | 3.3 V / 5 V tolerant |
| 工作温度范围 | — | -40 C to +105 C |
| Manufacturer | — | Analog Devices (formerly Linear Technology) |