LT1431MPS8#TRPBF

Voltage Reference Overview

The LT1431MPS8#TRPBF is an adjustable shunt voltage regulator manufactured by Analog Devices Inc. It features a guaranteed 0.4% initial reference voltage tolerance and a typical temperature stability of 0.3%. The device supports a sink current capability ranging from 1mA to 100mA with a nominal internal limit of 100mA. It operates within a supply voltage range up to 36V and maintains functionality across a temperature range of -55°C to +125°C. The component utilizes an 8-lead Plastic Small Outline (SOIC) package.

Voltage Reference Feature Summary

• Adjustable shunt regulation with on-chip divider resistors for standalone 5V operation
• Fast turn-on response and low reference pin input current
• Configurable output voltage between 2.5V and 36V using external resistors
• Internal bias current cancellation reduces reference pin current at higher voltages

Voltage Reference Applications

• Linear regulators
• Adjustable power supplies
• Switching power supplies

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging, distinct from tube packaging. Confirm the MPS8 designation corresponds to the military-grade temperature range (-55°C to 125°C). Ensure compatibility with surface mount assembly processes for the SOIC-8 footprint. Cross-reference the manufacturer part number with official Analog Devices documentation to validate lead-free finish specifications.

Voltage Reference Selection Notes

Select this component when high initial accuracy and wide operating temperature ranges are required. The MPS8 variant is suitable for harsh environments compared to industrial or commercial grades. Consider the 100mA sink capability for load regulation needs. Evaluate the need for external compensation if driving complex capacitive loads or feedback loops.

Voltage Reference Part Context

This part belongs to the LT1431 family of programmable references. It serves as a precision alternative to standard zener diodes, offering superior dynamic impedance and temperature stability. The device integrates a 2.5V bandgap reference with error amplification and output transistor stages into a single monolithic IC structure.

Voltage Reference Replacement Considerations

LT1431MPS8#PBF