LTC2974IUP#PBF vs LTC3884EUK 对比
详细并排对比 LTC2974IUP#PBF 出自 Analog Devices 和 LTC3884EUK 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 | LTC2974IUP#PBF | LTC3884EUK |
|---|---|---|
| 品牌 | Analog Devices | Analog Devices |
| 分类 | Supervisors & Reset | 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） | $9.20 | $7.50 |
| 功能 | 4-channel PMBus Power System Manager | Step-Down DC-DC Controller |
| Number of Outputs Supervised | 4 | — |
| Output Voltage Servo Accuracy | 0.5% (over temperature) | — |
| Serial Interface | I2C/SMBus, PMBus-compliant | I2C / PMBus compliant |
| 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 | — |
| 封装 | 64-lead QFN (UP), 9 mm x 9 mm | 48-QFN (7x7 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 3 (per JEDEC J-STD-020) | [DATA_NEEDED: MSL rating] |
| RoHS 状态 | Compliant | Compliant (PBF suffix) |
| Manufacturer | Analog Devices (formerly Linear Technology) | — |
| 拓扑 | — | Buck (Step-Down), Synchronous |
| 输出数量 | — | 2 |
| 输出配置 | — | Positive |
| 输出类型 | — | Transistor Driver |
| 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 |
| Current Sensing | — | Sub-milliohm DCR sensing |
| 工作温度 | — | -40C to +125C (junction) |