LT6658BHMSE-2.5#PBF

Overview

The LT6658BHMSE-2.5#PBF is a precision dual output voltage reference in a 16-lead MSOP package. It provides a fixed 2.5V output with an initial accuracy of ±0.1% and a temperature coefficient of 20ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and supports input voltages up to 36V. Output 1 delivers up to 150mA sourcing current, while Output 2 provides up to 50mA. Both outputs feature Kelvin sense connections for high load regulation.

Feature Summary

• Combines low drift precision reference performance with linear regulator capabilities
• Features separate supply pins for each output to reduce power consumption and isolate buffer amplifiers
• Includes thermal shutdown protection and short circuit prevention mechanisms

Applications

• Microcontroller or FPGA systems with integrated ADC/DAC components
• Precision data acquisition circuits
• Automotive control and monitoring systems

Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance when ordering. Confirm the MSE package designation matches the required surface mount footprint. Ensure the B-grade specifications meet the system's tolerance requirements before finalizing procurement.

Selection Notes

Select this component for applications requiring simultaneous high-current drive and precision referencing. The H-grade ensures operation at elevated temperatures up to 125°C. Verify that the input voltage headroom accommodates the dropout requirements for both outputs under maximum load conditions.

Part Context

This part belongs to the LT6658 family of Refulator devices. It shares architectural similarities with other grades like AIMSE and AHMSE but differs in accuracy and temperature range. The MSE package offers thermal management benefits over standard plastic packages for high-current applications.

Replacement Considerations

LT6658BHDE-2.5#PBF (DFN Package)

FAQ

How does the LT6658 handle heavy loading on its outputs?

Both outputs are designed to drive high-resolution ADC and DAC reference inputs even with heavy loading, maintaining precision through Kelvin sense connections.

What is the function of the separate supply pins?

Separate supply pins allow users to reduce overall power consumption and isolate the buffer amplifiers from noise generated by other circuitry.