LTC7802JUFDM#WPBF vs LTC3899EFE 对比
详细并排对比 LTC7802JUFDM#WPBF 出自 Analog Devices 和 LTC3899EFE 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
LTC7802JUFDM#WPBF - 40V Low IQ Dual Step-Down Controller | ADI
LTC7802JUFDM#WPBF ✓ 量产中Analog Devices
LTC3899EFE - 60V Triple Output Buck/Buck/Boost Sync Controller | ADI
LTC3899EFE ✓ 量产中规格对比
| 参数 | LTC7802JUFDM#WPBF | LTC3899EFE |
|---|---|---|
| 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） | $5.32 | $7.81 |
| 拓扑 | Dual synchronous buck controller | Triple-output synchronous buck + buck + boost controller |
| 输出数量 | 2 | 3 (2 buck + 1 boost, boost can run PassThru) |
| 输入电压范围 | 4.5 V to 40 V | — |
| 输出电压范围 | 0.8 V to VIN (min 0.8 V) | 800 mV to 60 V |
| Output Current | Dependent on external MOSFETs | — |
| Switching Frequency Range | 100 kHz to 3 MHz (PLL-lockable) | — |
| Maximum Duty Cycle | 99 % | — |
| Feedback Voltage Accuracy | ±1 % over temperature | — |
| 基准电压 | 0.8 V | — |
| Quiescent Current (Burst Mode) | [DATA_NEEDED: quiescent current spec] | — |
| 工作温度范围 | -40 C to +150 C (TJ) | — |
| 封装 | 28-lead QFN (4x5 mm) with exposed pad | 38-pin TSSOP-EP (FE suffix) |
| MSL 等级 | [DATA_NEEDED: MSL rating] | 1 (unlimited floor life at <30C/85%RH) |
| RoHS 状态 | Compliant | Compliant (#PBF suffix) |
| Lead-Free | Yes | — |
| Wettable Flanks | Yes (UFDM suffix) | — |
| Spread-Spectrum Modulation | Selectable via PLLIN/SPREAD pin | — |
| Input Voltage Range (VIN) | — | 4.5 V to 60 V |
| 开关频率 | — | Up to 850 kHz (phase-lockable) |
| 静态电流 | — | 15 µA per channel (regulating) |
| Control Architecture | — | Constant-frequency current-mode |
| MOSFET Driver | — | N-channel synchronous, all channels |
| EXTVCC Internal LDO | — | 5 V (for gate drive from external 5V rail) |
| DRVSET Pin | — | Yes (adjustable gate drive voltage) |
| Protection Features | — | Cycle-by-cycle current limit, short-circuit hiccup, OVP, UV, thermal shutdown |
| 工作结温 | — | -40 C to +125 C (extended temp grade) |
| 安装类型 | — | Surface Mount |