onsemi

NCP4561SN28T1

NCP4561SN28T1 Description

The NCP4561SN28T1 is a fixed-output linear regulator designed by onsemi, a leading manufacturer in the power management integrated circuits (PMIC) category. This device offers a robust solution for applications requiring a stable 2.8V output voltage with a maximum output current of 80mA. The regulator is designed to operate efficiently with an input voltage range up to 12V, ensuring compatibility with a variety of power sources. The NCP4561SN28T1 is housed in a 5TSOP package, making it suitable for surface-mount applications and providing a compact footprint for space-constrained designs.

NCP4561SN28T1 Features

• Output Type: Fixed, ensuring a stable 2.8V output voltage.
• Input Voltage Range: Up to 12V, providing flexibility in power source selection.
• Output Current: 80mA, suitable for low to medium current applications.
• Voltage Dropout: A maximum of 0.25V at 80mA, allowing the regulator to maintain efficiency even at low input-to-output voltage differentials.
• Quiescent Current: Low at 180 µA, minimizing power consumption in standby or low-load conditions.
• Power Supply Rejection Ratio (PSRR): 70dB at 1kHz, ensuring excellent noise rejection and stable output voltage.
• Control Features: Includes an enable function, allowing for dynamic control of the regulator’s operation.
• Protection Features: Antisaturation, over-current, and over-temperature protection, safeguarding the device and connected circuits from potential damage.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), ensuring reliability in various environmental conditions.
• Package: Tape & Reel (TR), facilitating automated assembly processes.
• Product Status: Although marked as obsolete, the NCP4561SN28T1 remains a viable option for existing designs and legacy systems.
• REACH Status: REACH Unaffected, ensuring compliance with environmental and safety regulations.

NCP4561SN28T1 Applications

The NCP4561SN28T1 is ideal for a range of applications where a reliable and efficient power supply is crucial. Its fixed 2.8V output and low dropout voltage make it particularly suitable for battery-powered devices, where maintaining efficiency across a wide range of input voltages is essential. The regulator’s low quiescent current and high PSRR also make it an excellent choice for applications sensitive to power consumption and noise, such as:

• Consumer Electronics: Portable devices, wearables, and IoT sensors.
• Telecommunications: Base stations, network equipment, and communication modules.
• Industrial Equipment: Control systems, sensors, and instrumentation.
• Automotive: Onboard electronics, infotainment systems, and telematics devices.

Conclusion of NCP4561SN28T1

The NCP4561SN28T1 stands out as a reliable and efficient linear regulator, offering a stable 2.8V output with a maximum current of 80mA. Its low dropout voltage and high PSRR ensure optimal performance and noise rejection, making it suitable for a wide range of applications. The inclusion of enable control and comprehensive protection features further enhances its versatility and reliability. Despite being marked as obsolete, the NCP4561SN28T1 remains a valuable component for existing designs and legacy systems, providing a robust power management solution in a compact 5TSOP package.