Microchip Technology

TC1121EOA

TC1121EOA Description

The TC1121EOA is a fixed output, negative voltage regulator from Microchip Technology, designed to provide a stable and reliable power supply for a variety of electronic applications. This regulator operates within an input voltage range of 2.4V to 5.5V and delivers a consistent 100mA of output current. Utilizing a charge pump topology, the TC1121EOA offers a ratiometric function with a switching frequency range of 10kHz to 200kHz, ensuring efficient power conversion and minimal power loss.

The TC1121EOA is housed in an 8SOIC package, making it suitable for surface mount applications. Despite its compact size, it offers robust performance and is compliant with both REACH and RoHS3 standards, ensuring environmental sustainability and regulatory adherence. The regulator is classified under ECCN EAR99 and HTSUS 8542.39.0001, and it has a moisture sensitivity level (MSL) of 1, indicating unlimited storage conditions.

TC1121EOA Features

• Fixed Output Voltage: Ensures a stable power supply, ideal for applications requiring consistent voltage levels.
• Wide Input Voltage Range (2.4V to 5.5V): Provides flexibility in power source selection, making it suitable for a variety of input conditions.
• 100mA Output Current: Delivers sufficient power for small to medium-sized electronic devices and components.
• Negative Output Configuration: Unique feature that allows for the generation of negative voltage rails, essential for specific analog and digital circuits.
• Charge Pump Topology: Offers high efficiency and low power consumption, making it ideal for battery-powered and energy-sensitive applications.
• Ratiometric Function: Ensures that the output voltage is proportional to the input voltage, providing a predictable and stable performance.
• 10kHz to 200kHz Switching Frequency: Provides a wide range of switching frequencies to optimize performance based on specific application requirements.
• Surface Mount Package (8SOIC): Facilitates easy integration into compact and high-density PCB designs.
• Compliance with REACH and RoHS3 Standards: Ensures environmental sustainability and regulatory compliance.
• Moisture Sensitivity Level 1: Allows for unlimited storage conditions, reducing the risk of moisture-related damage.

TC1121EOA Applications

The TC1121EOA is particularly well-suited for applications that require a stable and reliable negative voltage supply. Some specific use cases include:

• Analog Circuits: Ideal for powering operational amplifiers, comparators, and other analog components that require negative voltage rails.
• Digital Circuits: Suitable for digital-to-analog converters (DACs) and analog-to-digital converters (ADCs) that need a stable negative reference voltage.
• Battery-Powered Devices: The wide input voltage range and high efficiency make it perfect for portable devices and systems powered by batteries.
• Medical Equipment: Provides a stable power supply for sensitive medical devices and instruments that require precise voltage regulation.
• Industrial Control Systems: Ensures reliable operation in harsh industrial environments where stable power supply is critical.

Conclusion of TC1121EOA

The TC1121EOA from Microchip Technology is a versatile and reliable fixed output, negative voltage regulator designed to meet the demands of modern electronic applications. Its wide input voltage range, stable output current, and charge pump topology offer significant advantages over similar models, making it an ideal choice for a variety of use cases. Despite its obsolete status, the TC1121EOA remains a valuable component for applications requiring a stable and efficient negative voltage supply. Its compliance with environmental and regulatory standards further enhances its appeal for designers and engineers in the electronics industry.