Analog Devices Inc.

LT3092MPST

LT3092MPST Description

The LT3092MPST from Analog Devices Inc. is a high-precision, adjustable 200mA current source designed for demanding applications requiring stable and accurate current regulation. Operating over a wide input voltage range of 1.2V to 40V, this IC delivers ±1% accuracy, ensuring reliable performance in precision circuits. Packaged in a SOT-223-3 form factor, it is optimized for surface-mount (SMD) designs, making it suitable for compact and space-constrained applications. Despite its obsolete (OBSOLETE) status, the LT3092MPST remains a robust solution for legacy systems or designs requiring its unique capabilities.

LT3092MPST Features

• Precision Current Source: Delivers a stable 200mA output current with ±1% accuracy, ideal for precision analog circuits.
• Wide Input Voltage Range: Supports 1.2V to 40V, accommodating diverse power supply configurations.
• Low Dropout Operation: Efficiently regulates current even with minimal headroom voltage.
• Surface-Mount Package: SOT-223-3 package ensures compatibility with automated PCB assembly processes.
• Moisture Sensitivity Level (MSL) 1: Suitable for extended storage and handling without moisture concerns.
• Thermal Protection: Built-in safeguards enhance reliability in high-temperature environments.

LT3092MPST Applications

The LT3092MPST excels in applications requiring high-accuracy current sourcing, such as:

• LED Driver Circuits: Provides consistent current for LED arrays, ensuring uniform brightness.
• Sensor Biasing: Ideal for precision sensors (e.g., photodiodes, RTDs) requiring stable excitation currents.
• Test & Measurement Equipment: Used in calibration sources and current references.
• Industrial Control Systems: Supports analog signal conditioning and actuator driving.
• Legacy System Maintenance: Suitable for repairing or upgrading older designs where alternative components are unavailable.

Conclusion of LT3092MPST

The LT3092MPST stands out for its precision, wide voltage range, and compact design, making it a versatile choice for current-critical applications. While obsolete, its ±1% accuracy and 200mA output ensure it remains valuable for niche or legacy projects. Engineers seeking a reliable current source with low dropout and thermal protection may find the LT3092MPST an optimal solution, particularly in LED driving, sensor biasing, and precision instrumentation. For new designs, verifying alternative active models from Analog Devices is recommended.