Voltage Detector Series with Open Drain N-Channel Output 2.5 V, Reset Low
NCP301 Series 4.2 V Threshold 10 V Supply Voltage Supervisor Detector - TSOP-5
NCP302 Series 4.5 V Threshold 10 V Supply Voltage Supervisor Detector - TSOP-5
Voltage Detector Series with Open Drain N-Channel Output 4.0 V, Reset Low