R1290K103A-E2

The R1290K103A-E2 is a high-performance, low-noise voltage regulator designed to provide precise voltage regulation in compact electronics. It features low dropout voltage, making it ideal for battery-operated devices and systems requiring high efficiency. This regulator comes in a QFN-24 package, allowing for easy integration into space-constrained designs. Its high accuracy and low power consumption make it suitable for consumer electronics, telecommunications, and portable devices.

Pinout

The R1290K103A-E2 pinout refers to the configuration of its 24 pins in the QFN-24 package. The pinout includes connections for input, output, ground, enable, and feedback, ensuring efficient voltage regulation and control. The exposed pad (EP) on the package enhances thermal performance, allowing for reliable operation in high-power applications. Designers should consult the datasheet for precise pin functions and electrical characteristics to ensure proper integration into their system.

Key Features

• Low Dropout Voltage: Ensures efficient voltage regulation even at low input-output voltage differentials.
• High Accuracy: Provides precise output voltage with minimal variation, ensuring stable performance.
• Low Power Consumption: Optimized for battery-operated devices, extending operational life in portable applications.
• QFN-24 Package: Compact form factor ideal for high-density PCB designs with excellent thermal management via the exposed pad.
• Thermal Protection: Built-in thermal shutdown prevents damage due to overheating.

Application

• Portable Electronics: Used in smartphones, tablets, and wearables for efficient power management and extended battery life.
• Telecommunications: Employed in communication devices for reliable voltage regulation in signal processing and transmission circuits.
• Consumer Electronics: Integrated into devices such as cameras, laptops, and gaming consoles to ensure stable voltage supply for various components.
• Battery Management Systems: Used in battery-powered applications to regulate and manage power efficiently.
• IoT Devices: Provides precise voltage regulation in Internet of Things (IoT) devices that require compact and efficient power solutions.

Functionality

The R1290K103A-E2 functions as a low-dropout (LDO) voltage regulator, providing precise output voltage regulation even at low input-output differentials. Its high accuracy ensures stable performance, while its low power consumption makes it ideal for portable and battery-operated devices. The regulator’s thermal protection prevents damage in high-power or thermally challenging environments. The compact QFN-24 package with an exposed pad allows for efficient heat dissipation, ensuring reliable long-term operation in high-density PCB designs.

Usage Guide

• Integration: Connect the input and output pins to the appropriate power and load points, ensuring that the ground and enable pins are connected correctly. The feedback pin can be used to monitor and adjust the output voltage.
• Power Supply: The regulator operates efficiently at low input voltages, making it suitable for systems with tight power constraints.
• Communication: The device regulates the voltage without requiring any complex communication protocols, providing an accurate and stable output voltage.
• Protection: The built-in thermal shutdown feature ensures protection against overheating. Use appropriate capacitors to filter noise and ensure stable operation.
• PCB Layout: Ensure proper heat dissipation by connecting the exposed pad to a large ground plane. Minimize noise and interference by placing capacitors close to the input and output pins.

Advantages and Disadvantages

Advantages

• High Accuracy: Ensures stable and precise voltage regulation, ideal for sensitive electronic components.
• Low Dropout Voltage: Allows efficient regulation even with low input-output voltage differentials, maximizing efficiency in battery-powered devices.
• Compact Design: The QFN-24 package is suitable for high-density PCB layouts with space limitations.

Disadvantages

• Requires Efficient Thermal Management: Although the QFN-24 package has an exposed pad for heat dissipation, high-power applications may require additional cooling mechanisms.
• Limited to Single Output: The regulator is optimized for single-output voltage regulation, limiting its use in multi-output systems.