LT6658BHDE-3.3#PBF

Overview

The LT6658BHDE-3.3#PBF is a precision dual output voltage reference from Analog Devices, housed in a 16-lead (4mm × 3mm) plastic DFN package with an exposed thermal pad. It provides a fixed 3.3V output with B-grade initial accuracy of ±0.1% and a maximum 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.

Feature Summary

• Combines precision voltage reference and linear regulator performance for simultaneous high-resolution ADC/DAC driving and microcontroller powering
• Features Kelvin sense connections on outputs to achieve low load regulation under heavy loading conditions
• Includes separate supply pins for each output to allow power consumption reduction and buffer amplifier isolation

Applications

• Microcontroller or FPGA systems with integrated ADC/DAC peripherals
• High-precision data acquisition systems requiring stable reference inputs
• Automotive control and monitoring circuits demanding wide temperature stability

Procurement Notes

Verify the specific suffix DE indicates the 16-lead DFN package configuration distinct from MSOP variants. Confirm the BH designation corresponds to the B-grade accuracy and H-grade extended temperature range specifications required for your application environment before finalizing procurement orders.

Selection Notes

Select this component when dual isolated outputs are necessary for separating sensitive analog references from digital logic supplies. The DFN package offers thermal management advantages for space-constrained designs. Ensure input voltage headroom meets dropout requirements for both outputs simultaneously under maximum load conditions.

Part Context

This part belongs to the LT6658 family of Refulator™ devices designed to replace standard LDOs in precision applications. The family includes A-grade and B-grade options across multiple fixed voltage outputs. The DE suffix specifically denotes the smaller footprint DFN package suitable for dense PCB layouts compared to the larger MSOP alternatives.

Replacement Considerations

LT6658BHMSE-3.3#PBF