Texas Instruments

LM4050BEM3-2.5

LM4050BEM3-2.5 Description

The LM4050BEM3-2.5 is a precision shunt voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 2.5V with a tolerance of ±0.2%. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-3 package, making it suitable for surface mount applications. Despite its small form factor, the LM4050BEM3-2.5 delivers high performance, with a low temperature coefficient of 50ppm/°C and low noise levels of 41µVrms over the 10Hz to 10kHz frequency range. The IC can source up to 15 mA of output current and has a cathode current of 65 µA. It is REACH unaffected and ROHS3 compliant, ensuring environmental safety and regulatory compliance. The moisture sensitivity level (MSL) is rated at 1 (unlimited), making it suitable for a wide range of manufacturing environments. The base product number is LM4050, and it is available in a tape & reel (TR) package.

LM4050BEM3-2.5 Features

• Fixed Output Voltage: The LM4050BEM3-2.5 provides a stable 2.5V output voltage, making it ideal for applications requiring a precise reference voltage.
• High Precision: With a tolerance of ±0.2%, this IC ensures accurate voltage references, crucial for sensitive analog circuits.
• Low Temperature Coefficient: The 50ppm/°C temperature coefficient ensures minimal drift over varying temperatures, maintaining accuracy across different operating conditions.
• Low Noise Performance: The 41µVrms noise level over the 10Hz to 10kHz range ensures clean voltage references, essential for high-precision applications.
• High Output Current Capability: The ability to source up to 15 mA of output current makes it suitable for driving multiple loads or high-current applications.
• Low Cathode Current: The 65 µA cathode current minimizes power consumption, making it energy-efficient for battery-powered devices.
• Compact SOT23-3 Package: The small form factor allows for integration into space-constrained designs, ideal for modern electronics.
• Environmental Compliance: REACH unaffected and ROHS3 compliant, ensuring it meets stringent environmental regulations.
• Unlimited Moisture Sensitivity Level: MSL 1 rating allows for flexible manufacturing processes without moisture sensitivity concerns.

LM4050BEM3-2.5 Applications

The LM4050BEM3-2.5 is well-suited for a variety of applications requiring precise voltage references. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for accurate conversions.
• Digital-to-Analog Converters (DACs): Ensures precise output levels for reliable analog signal generation.
• Precision Voltage Regulators: Acts as a reference for voltage regulation circuits.
• Battery Management Systems: Offers a stable reference for monitoring and controlling battery voltages.
• Medical Devices: Ensures accurate measurements in devices like glucose meters and portable medical monitors.
• Industrial Control Systems: Provides reliable voltage references for sensors and control circuits.
• Consumer Electronics: Used in devices like smartphones, tablets, and wearables for accurate voltage references.

Conclusion of LM4050BEM3-2.5

The LM4050BEM3-2.5 from Texas Instruments is a high-performance shunt voltage reference IC that offers a precise 2.5V output with minimal temperature drift and low noise. Its compact SOT23-3 package, combined with its high output current capability and low cathode current, makes it an ideal choice for a wide range of applications, from precision analog circuits to battery-powered devices. Despite being marked as obsolete, its unique features and advantages over similar models make it a reliable and efficient solution for maintaining accurate voltage references in various electronic systems.