LINEAR TECHNOLOGY LTC4420IMSE#PBF Special Function IC, Power Path Prioritizer, 1.8 V to 18 V in, MSOP-12 新
The is an 18V dual input micropower PowerPath prioritizer with back-up supply monitoring in 12 pin MSOP package. This monolithic PowerPath prioritizer with low operating current provides back-up switchover for keeping critical circuitry alive during brown out and power loss conditions. Unlike diode-OR products, little current is drawn from inactive supply even if its voltage is greater than active supply. Internal dual 2ohm, 0.5A current limited PMOS switches provide power path selection from a primary input V1 or a backup input V2 to output. Two adjustable voltage monitors set via external resistive dividers provide flexibility in setting V1 to V2 switchover and V2 undervoltage thresholds. V1 is monitored continuously while V2 supply monitoring includes controllable low duty cycle UV monitoring. When primary input V1 drops, the ADJ monitor causes OUT to be switched to V2. When V2 drops, it is disconnected from OUT if active-low V2DIS is low.
电源电压DC 1.80V min
供电电流 3.6 µA
针脚数 12
输出电流Max 1.6 A
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 1.8V ~ 18V
电源电压Max 18 V
电源电压Min 1.8 V
安装方式 Surface Mount
引脚数 12
封装 MSOP-12
封装 MSOP-12
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Each
制造应用 Portable Devices, 便携式器材, Power Management, 备用电池, 电源管理
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/12/17
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
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LTC4420IMSE#PBF Linear Technology 凌力尔特 | 当前型号 | 当前型号 |
LTC4420IMSE#TRPBF 凌力尔特 | 完全替代 | LTC4420IMSE#PBF和LTC4420IMSE#TRPBF的区别 |