LT6658BIMSE-3.3#PBF

Overview

The LT6658BIMSE-3.3#PBF is a precision dual output voltage reference from Analog Devices, operating at a fixed 3.3V output with B-grade specifications. It features an initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C over the industrial range of -40°C to +85°C. The device integrates two independent outputs capable of sourcing up to 150mA on Output 1 and 50mA on Output 2, while sinking up to 20mA each. It supports input voltages up to 36V and includes separate supply pins for isolation.

Feature Summary

• Combines precision voltage reference performance with linear regulator capabilities in a single integrated circuit
• Provides two independent outputs that track each other over temperature and load variations
• Features Kelvin sense connections for high-precision load regulation under heavy loading conditions

Applications

• Driving precision reference inputs of high-resolution ADCs and DACs
• Powering microcontrollers and supporting circuitry simultaneously
• Dual output tracking reference systems
• Precision low noise regulators

Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance when ordering. Confirm the IMSE package designation matches the required MSOP-16 footprint. Ensure the BIMSE grade corresponds to the necessary 20ppm/°C temperature coefficient and 0.1% accuracy for the target application environment.

Selection Notes

Select this part when dual isolated outputs are required for sensitive analog front ends. The B-grade specification offers a balance of cost and performance for general industrial applications. Consider the A-grade variant if tighter 10ppm/°C drift is needed. Verify thermal management requirements given the exposed pad design for heat dissipation.

Part Context

This component belongs to the LT6658 family of Refulator devices, which merge reference and regulator functions. The family includes options for various fixed voltages and adjustable configurations. The MSE package provides thermal efficiency through an exposed ground pad, suitable for surface mount assembly in compact designs.

Replacement Considerations

LT6658AIMSE-3.3#PBF offers improved 10ppm/°C drift and 0.05% accuracy. LT6658BHMSE-3.3#PBF extends the operating temperature range to 125°C. DFN package equivalents include LT6658BIDE-3.3#PBF.