Model No: NCP303LSN45T1G

onsemi NCP303LSN45T1G

Manufacturer: onsemi
SEMICON NO.: NCP303LSN45T1G
Package: SOT-23-5
Stock: In stock
Description: IC Supervisor 1 Channel 5TSOP
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 Mfr  onsemi 
 Product Family NCP303
 Core Function  Simple Reset/Power-On Reset
 Number of Monitored Voltages 1
 Threshold Voltage (Nominal) 4.5 V
 Threshold Accuracy 2%
 Undervoltage Threshold 4.41 V
 Overvoltage Threshold  4.59 V
 Supply Voltage Range (VCC 0.8 V to 10 V
 Operating Supply Current (ICC)   0.5 µA (typ)
 Output Type Open Drain or Open Collector
 Reset Timeout Programmable/Selectable
 Operating Temperature -40°C to +125°C
 Package SOT-23-5
 Mounting Type Surface Mount (SMD/SMT) 
 Compliance     RoHS Compliant
NCP303LSN45T1G OVP controller
The NCP303LSN45T1G is a high-performance, precision overvoltage protection (OVP) controller from ON Semiconductor, designed to safeguard sensitive electronic circuits from voltage surges and transient spikes. This device operates with an input voltage range up to 45V and features an adjustable overvoltage threshold, making it highly versatile for a wide array of applications including power management systems, automotive electronics, industrial controls, and computing platforms. Its ultra-fast detection response time ensures reliable protection by swiftly disconnecting the load when voltage exceeds the set threshold, thereby preventing potential damage to downstream components.
NCP303LSN45T1GOvervoltage Protection IC  Key Features
This chip integrates a high-accuracy voltage reference and comparator to deliver precise overvoltage monitoring, with a typical threshold accuracy of ±1.5%. It includes an open-drain fault output that provides a clear signal during overvoltage events, enabling easy interfacing with microcontrollers or system logic. The device supports an adjustable overvoltage lockout (OVLO) threshold via external resistors, allowing customization from as low as 0.5V up to the maximum rating. With a low quiescent current, it minimizes power loss in standby modes, enhancing energy efficiency in battery-powered applications. Additional benefits include built-in hysteresis to prevent chattering during voltage transitions, a wide operating temperature range from -40°C to 125°C, and compliance with industry-standard reliability and quality requirements.
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● MIC2090-1YMT-TR: Microchip's high-accuracy OVP solution featuring a fast response and thermal shutdown, optimized for computing and storage applications.
● LT4356HMS-3#PBF: Linear Technology's surge stopper with overvoltage and overcurrent protection, designed for high-reliability industrial and automotive power rails.