Texas Instruments

LM4051CIM3-1.2

LM4051CIM3-1.2 Description

The LM4051CIM3-1.2 is a fixed output voltage reference IC designed by Texas Instruments, featuring a precision shunt reference with a nominal output voltage of 1.225V. This device is housed in a compact SOT23-3 package, making it suitable for space-constrained applications. Despite its small form factor, the LM4051CIM3-1.2 offers robust performance characteristics, including a low temperature coefficient of 50ppm/°C and a tight tolerance of ±0.5%. It is capable of sourcing up to 12 mA of current, making it ideal for applications requiring stable voltage references. The device also boasts low noise performance, with a noise level of 20µVrms over the 10Hz to 10kHz frequency range. The LM4051CIM3-1.2 is RoHS3 compliant and REACH unaffected, ensuring it meets modern environmental and regulatory standards. It has a moisture sensitivity level (MSL) of 1, indicating it is suitable for unlimited exposure to standard environmental conditions. The device is available in a tape and reel (TR) package format, facilitating efficient manufacturing processes.

LM4051CIM3-1.2 Features

• Fixed Output Voltage: The LM4051CIM3-1.2 provides a stable output voltage of 1.225V, ensuring consistent performance in various applications.
• Low Temperature Coefficient: With a temperature coefficient of 50ppm/°C, the device maintains high accuracy across a wide temperature range, making it suitable for precision applications.
• High Current Capability: The ability to source up to 12 mA of current allows the LM4051CIM3-1.2 to drive multiple loads or high-current applications effectively.
• Low Noise Performance: The 20µVrms noise level over the 10Hz to 10kHz range ensures minimal interference, critical for sensitive analog circuits.
• Tight Tolerance: The ±0.5% tolerance guarantees precise voltage regulation, enhancing the reliability and accuracy of the reference voltage.
• Surface Mount Technology: The SOT23-3 package is ideal for surface mount applications, providing a compact solution for modern electronic designs.
• Environmental Compliance: The LM4051CIM3-1.2 is RoHS3 compliant and REACH unaffected, ensuring it meets stringent environmental standards.
• Low Cathode Current: The device operates with a low cathode current of 65 µA, minimizing power consumption and heat generation.

LM4051CIM3-1.2 Applications

The LM4051CIM3-1.2 is well-suited for a variety of applications requiring precise voltage references, including:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for accurate analog signal conversion.
• Digital-to-Analog Converters (DACs): Ensures precise output voltage levels for digital signal reconstruction.
• Power Management Circuits: Offers a reliable reference for voltage regulation and monitoring.
• Precision Measurement Equipment: Enhances the accuracy of measurement devices by providing a stable reference voltage.
• Battery Management Systems: Assists in accurate voltage monitoring and control for battery charging and discharging.
• Medical Devices: Ensures precise voltage references for critical medical instrumentation.

Conclusion of LM4051CIM3-1.2

The LM4051CIM3-1.2 from Texas Instruments is a high-performance, fixed output voltage reference IC that offers a combination of precision, low noise, and high current capability in a compact SOT23-3 package. Its low temperature coefficient and tight tolerance make it an ideal choice for applications requiring high accuracy and stability. Despite being marked as obsolete, the LM4051CIM3-1.2 remains a reliable option for designers seeking a robust and precise voltage reference solution. Its environmental compliance and surface mount compatibility further enhance its suitability for modern electronic designs.