LM4132BMF-1.8/NOPB

Voltage Reference Overview

The LM4132BMF-1.8/NOPB is a precision shunt voltage reference manufactured by Texas Instruments, designed for high accuracy in compact applications. It delivers a fixed output voltage of 1.8 V with an initial accuracy of 0.1%. The device features a temperature coefficient of 30 ppm/°C and operates within a supply voltage range up to 6 V. It draws a typical quiescent current of 60 µA and supports a maximum shunt current of 20 mA. The component functions reliably across an extended industrial temperature range from -40°C to +125°C. Packaged in a SOT-23-5 surface-mount case, it integrates shutdown functionality for power optimization.

Voltage Reference Feature Summary

• Provides stable 1.8 V reference output with 0.1% initial accuracy
• Features low temperature drift of 30 ppm/°C for thermal stability
• Includes shutdown pin for reduced power consumption
• Operates with low quiescent current of 60 µA

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement systems
• Data acquisition systems
• Industrial process control loops

Voltage Reference Procurement Notes

Verify the specific suffix 'BMF' indicates the 1.8 V output variant and 0.1% accuracy grade. Confirm the 'NOPB' designation ensures lead-free and RoHS compliance. Check the package marking code against the datasheet mechanical outline to ensure correct SOT-23-5 identification. Validate that the supplier provides the official Texas Instruments datasheet for parameter confirmation.

Voltage Reference Selection Notes

Select this component when a 1.8 V reference is required with tight initial accuracy tolerances. Consider the 30 ppm/°C drift specification for environments with significant temperature fluctuations. Evaluate the 60 µA quiescent current against system power budgets. Ensure the input voltage remains below the 6 V maximum limit while providing sufficient headroom for regulation.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision low dropout voltage references. It shares architectural similarities with other variants like the LM4132AMF and LM4132CMF but differs in output voltage and accuracy grades. The series is designed for space-constrained applications using the SOT-23-5 package. It complements the broader portfolio of Texas Instruments PMIC solutions.

Voltage Reference Replacement Considerations

Direct substitutes include LM4132BMFX-1.8/NOPB for reel packaging variations. Cross-reference with LM4132BMF-1.8/NOPB to confirm identical electrical specifications. Verify compatibility with LM4132BMF-1.8 without the NOPB suffix if leaded options are acceptable.