onsemi

NCP301LSN22T1

NCP301LSN22T1 Description

The NCP301LSN22T1 from onsemi is a single-channel voltage supervisor IC designed for precision monitoring of power supply voltages in electronic systems. Housed in a compact 5-pin TSOP package and delivered in Tape & Reel (TR) format, this surface-mount device is optimized for space-constrained applications. It features a fixed 2.2V threshold voltage with an active-low, open-drain output, ensuring reliable reset generation during power-up, power-down, or brownout conditions. Although marked as Obsolete, it remains a robust choice for legacy designs requiring stable voltage supervision.

NCP301LSN22T1 Features

• Precision Monitoring: Single-channel supervision with a fixed 2.2V threshold, ensuring accurate detection of undervoltage events.
• Open-Drain Output: Flexible output configuration (active-low) compatible with various logic levels and easy interfacing with microcontrollers or FPGAs.
• Compact Form Factor: 5-pin TSOP package ideal for high-density PCB layouts.
• Reliable Performance: REACH Unaffected and Moisture Sensitivity Level (MSL) 1 (Unlimited), suitable for industrial environments.
• Low Power Operation: Designed for efficiency in battery-powered or energy-sensitive systems.

NCP301LSN22T1 Applications

• Embedded Systems: Ensures stable reset signaling for microcontrollers and DSPs during power fluctuations.
• Industrial Controls: Protects critical circuitry from undervoltage conditions in PLCs and automation equipment.
• Consumer Electronics: Used in smart devices, set-top boxes, and IoT modules for reliable power management.
• Legacy Designs: Ideal for maintaining or repairing older systems requiring obsolete but proven components.

Conclusion of NCP301LSN22T1

The NCP301LSN22T1 offers a dependable, compact solution for voltage supervision, particularly in legacy or cost-sensitive designs. Its 2.2V threshold and open-drain output provide versatility, while the TSOP package ensures compatibility with space-constrained layouts. Though obsolete, its robust performance makes it a viable choice for applications demanding precise power monitoring without complex programmability. Engineers seeking a straightforward, no-frills supervisor IC will find this device well-suited for industrial, consumer, and embedded systems.