onsemi

NCP702SN18T1G

NCP702SN18T1G Description

The NCP702SN18T1G from onsemi is a fixed-output, low-dropout (LDO) linear voltage regulator designed to deliver a stable 1.8V output with a maximum input voltage of 5.5V. Capable of supplying 200mA of continuous output current, this regulator is optimized for power-sensitive applications with its ultra-low quiescent current of 16 µA, enhancing efficiency in battery-operated systems. Packaged in a compact 5-pin TSOP and available in tape-and-reel (TR) format, it is ideal for space-constrained designs. Although marked as obsolete, it remains a reliable choice for legacy or low-power designs requiring robust performance.

NCP702SN18T1G Features

• Fixed 1.8V Output: Precision-regulated voltage for stable power delivery.
• Low Quiescent Current (16 µA): Minimizes power loss in standby/battery modes.
• Wide Input Range (Up to 5.5V): Supports common power sources (e.g., Li-ion, 5V rails).
• Advanced Protection: Includes over-current, over-temperature, soft-start, and UVLO for enhanced reliability.
• Enable Control: Allows external power management via logic-level enable pin.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.
• Surface-Mount (TSOP) Packaging: Suitable for high-density PCB layouts.

NCP702SN18T1G Applications

This LDO excels in scenarios demanding low noise, compact size, and energy efficiency:

• Portable Electronics: Smartwatches, IoT sensors, and wireless modules benefit from its low Iq.
• Embedded Systems: Powers microcontrollers (MCUs), FPGAs, and memory in industrial/consumer devices.
• Battery-Powered Devices: Extends runtime in medical wearables or handheld instruments.
• Noise-Sensitive Analog Circuits: Provides clean power for ADCs/DACs or RF components.

Conclusion of NCP702SN18T1G

The NCP702SN18T1G is a high-performance LDO regulator tailored for low-power, space-constrained applications. Its combination of low dropout, ultra-low Iq, and robust protection features makes it a standout choice for legacy designs or systems prioritizing efficiency. While obsolete, its reliability and compliance with modern standards (RoHS3) ensure suitability for niche or long-lifecycle projects. Engineers seeking a compact, energy-efficient solution for 1.8V rail stabilization will find this regulator a compelling option.