onsemi

CS8281YDPR5

CS8281YDPR5 Description

The CS8281YDPR5 is a dual linear regulator IC designed for high-performance power management applications. Manufactured by onsemi, this device offers a fixed output voltage configuration with two independent regulators, each providing a fixed 5V output. The regulators are capable of delivering output currents of 100mA and 250mA, respectively, making it suitable for a variety of low-power applications. The maximum input voltage is rated at 74V, ensuring robust operation across a wide range of input conditions.

This IC features a low dropout voltage of 0.6V at both 100mA and 250mA output currents, which enhances efficiency and minimizes power loss. The quiescent current is kept low at 150 µA, contributing to energy savings in standby modes. The device also boasts a high power supply rejection ratio (PSRR) of 70dB at 120Hz, which helps in maintaining stable output voltage even in the presence of input voltage fluctuations.

The CS8281YDPR5 is housed in a D2PAK-5 surface-mount package, making it suitable for compact and high-density PCB designs. The package is moisture sensitivity level 2 (MSL2), ensuring reliability in various environmental conditions. The device also includes an enable control feature, allowing for dynamic power management and system optimization.

CS8281YDPR5 Features

• Dual Fixed Output Regulators: Provides two independent 5V outputs with current capabilities of 100mA and 250mA.
• Low Dropout Voltage: 0.6V at both 100mA and 250mA, ensuring high efficiency.
• High PSRR: 70dB at 120Hz, maintaining stable output voltage.
• Low Quiescent Current: 150 µA, ideal for low-power applications.
• Enable Control: Allows dynamic power management.
• Protection Features: Over-temperature, over-voltage, reverse polarity, and short-circuit protection ensure robust operation.
• Surface-Mount Package: D2PAK-5 package is suitable for compact designs and high-density PCBs.
• Moisture Sensitivity Level: MSL2 (1 Year), ensuring reliability in various environments.

CS8281YDPR5 Applications

The CS8281YDPR5 is ideal for applications requiring stable and efficient power supply solutions. Its dual regulators make it suitable for systems with multiple power rails or where redundancy is needed. The low dropout voltage and high PSRR make it particularly useful in applications with varying input voltages or where noise rejection is critical.

Specific use cases include:

• Consumer Electronics: Powering small devices and peripherals.
• Industrial Control Systems: Providing stable power to sensors and actuators.
• Telecommunications: Supplying power to low-power communication modules.
• Automotive Electronics: Suitable for in-vehicle systems requiring reliable power management.

Conclusion of CS8281YDPR5

The CS8281YDPR5 is a versatile and efficient dual linear regulator IC from onsemi, designed to meet the demands of modern power management applications. Its unique features, such as low dropout voltage, high PSRR, and enable control, provide significant advantages over similar models. The device's robust protection features and compact surface-mount package make it an ideal choice for a wide range of applications, from consumer electronics to industrial control systems. Despite being marked as obsolete, the CS8281YDPR5 remains a reliable option for engineers seeking a high-performance power management solution.