LT6658AIMSE-3.3#PBF

Overview

The LT6658AIMSE-3.3#PBF is a precision dual output voltage reference from Analog Devices, operating at a fixed 3.3V nominal output. It features an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C within the industrial range of -40°C to +85°C. The device integrates two independent outputs: Output 1 supports up to 150mA sourcing current, while Output 2 provides up to 50mA. It utilizes a 16-lead MSOP package with an exposed thermal pad.

Feature Summary

• Combines low drift precision reference performance with linear regulator capabilities for heavy loading applications
• Provides dual outputs with identical precision specifications that track each other over temperature and load variations
• Features separate supply pins for each output to allow power consumption reduction and buffer amplifier isolation

Applications

• Driving precision reference inputs of high resolution ADCs and DACs under heavy load conditions
• Powering microcontrollers and supporting circuitry simultaneously with analog signal paths
• Dual output tracking reference systems requiring matched voltage rails

Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance when ordering. Confirm the MSE package designation matches the required 16-lead MSOP footprint on the PCB layout. Ensure the A-grade specification meets the strict accuracy requirements of the target design before finalizing procurement.

Selection Notes

Select this part when both high current drive capability and ultra-low noise are required for sensitive analog front ends. The dual output architecture simplifies board space by replacing separate regulators and references. Verify input voltage headroom requirements against the dropout characteristics for the intended load currents.

Part Context

This component belongs to the LT6658 family of Refulator devices, which merge reference and regulator functions. The AIMSE variant specifically denotes the A-grade performance level housed in the MSOP package. Other family members include B-grade options and DFN package variants offering different thermal and electrical trade-offs.

Replacement Considerations

LT6658BIMSE-3.3#PBF offers lower accuracy grades. LT6658AHMSE-3.3#PBF provides extended temperature range capabilities. Cross-reference pinouts remain consistent across the MSOP package family.