LM4132EMF-1.8/NOPB

Voltage Reference Overview

The LM4132EMF-1.8/NOPB is a precision series voltage reference IC manufactured by Texas Instruments, featuring a fixed output of 1.8 V with an initial accuracy of ±0.05%. It operates within an input voltage range of 3.4 V to 6 V and supports a maximum shunt current of 20 mA. The device exhibits a temperature coefficient of 20 ppm/°C and consumes a typical supply current of 60 µA. It is housed in a SOT-23-5 package and functions reliably across a junction temperature range of -40°C to +125°C.

Voltage Reference Feature Summary

• Provides high-precision voltage regulation with ultra-low initial tolerance for critical analog circuits.
• Integrates a shutdown enable pin to minimize power consumption during inactive periods.
• Delivers stable performance over wide temperature variations suitable for harsh environments.

Voltage Reference Applications

• Portable battery-powered instrumentation requiring low quiescent current
• Data acquisition systems needing precise reference voltages
• Automotive electronic control units (ECUs) meeting AEC-Q100 standards

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free compliance and RoHS status. Confirm the 'E' grade indicates the ±0.05% accuracy tier rather than standard grades. Ensure the SOT-23-5 footprint matches the target PCB design. Check for automotive qualification requirements if deploying in vehicle applications.

Voltage Reference Selection Notes

Select this component when sub-percent accuracy and minimal drift are required in space-constrained designs. Compare against higher-current alternatives if load demands exceed 20 mA. Consider the shutdown feature for systems prioritizing energy efficiency. Validate thermal management needs given the small surface-mount package size.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision low-dropout voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades. The EMF variant specifically denotes the SOT-23-5 package configuration optimized for compact electronics.

Voltage Reference Replacement Considerations

LM4132DMF-1.8/NOPB: Different package type (DFN). LM4132CIMF-1.8/NOPB: Lower accuracy grade (±0.1%). Verify pin compatibility and thermal characteristics before substitution.