onsemi

NCP4587DSN18T1G

NCP4587DSN18T1G Description

The NCP4587DSN18T1G is a linear regulator IC designed by onsemi, featuring a fixed output voltage of 1.8V and capable of delivering a maximum output current of 150mA. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact SOT23-5 package, making it ideal for space-constrained applications. Despite its small form factor, the NCP4587DSN18T1G offers robust performance with a maximum dropout voltage of 0.25V at 150mA, ensuring efficient power conversion even at low input voltages. The regulator is designed for surface-mount applications and is available in a tape and reel package format, facilitating automated assembly processes. Although the product is now obsolete, it remains a notable solution for specific power management needs.

NCP4587DSN18T1G Features

• Fixed Output Voltage: The NCP4587DSN18T1G provides a stable output voltage of 1.8V, making it suitable for applications requiring precise voltage regulation.
• Low Dropout Voltage: With a maximum dropout voltage of 0.25V at 150mA, this regulator ensures high efficiency and minimal power loss, even when operating near the input voltage limit.
• Low Quiescent Current: The regulator operates with a quiescent current of only 4 µA, which is crucial for applications where power consumption must be minimized, such as in battery-powered devices.
• High PSRR: The Power Supply Rejection Ratio (PSRR) of 70dB at 1kHz ensures excellent noise filtering, providing clean power to sensitive circuits.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator's operation, enabling power-saving modes and precise control over the power delivery.
• Over Current Protection: Built-in overcurrent protection safeguards the regulator and connected circuits from damage due to excessive current draw.
• Moisture Sensitivity Level (MSL) 1: The device is classified as MSL 1, indicating it is not sensitive to moisture, which is beneficial for applications in humid environments.
• REACH Unaffected: The NCP4587DSN18T1G complies with REACH regulations, ensuring it is free from harmful substances and suitable for environmentally conscious designs.

NCP4587DSN18T1G Applications

The NCP4587DSN18T1G is well-suited for a variety of applications where precise voltage regulation and low power consumption are critical. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and low dropout voltage make this regulator ideal for portable electronics and IoT devices that require extended battery life.
• Low-Power Embedded Systems: The compact SOT23-5 package and high PSRR ensure that the regulator can be integrated into small form factor embedded systems without compromising performance.
• Industrial Control Systems: The robust overcurrent protection and moisture resistance make it suitable for industrial applications where reliability and durability are paramount.
• Medical Devices: The precise voltage regulation and low noise performance are beneficial for medical equipment that requires stable and clean power supply.

Conclusion of NCP4587DSN18T1G

The NCP4587DSN18T1G is a versatile linear regulator IC that offers a unique combination of low dropout voltage, low quiescent current, and high PSRR, making it an excellent choice for a wide range of power management applications. Despite its obsolete status, the device remains a reliable solution for applications requiring precise voltage regulation and low power consumption. Its compact size and surface-mount compatibility further enhance its suitability for modern electronics designs.