LM4132EMFX-3.0/NOPB

Voltage Reference Overview

The LM4132EMFX-3.0/NOPB is a precision series voltage reference manufactured by Texas Instruments, housed in an SOT-23-5 surface-mount package. It provides a fixed output voltage of 3 V with an initial accuracy of ±0.5%. The device operates within an input voltage range of 3.4 V to 5.5 V and supports a maximum shunt current of 20 mA. Key electrical characteristics include a temperature coefficient of 30 ppm/°C and a typical supply current of 60 µA, with a maximum of 100 µA. It features low noise performance, specified at 285 µVp-p from 0.1 Hz to 10 Hz. The component is rated for operation between -40°C and +125°C.

Voltage Reference Feature Summary

• Integrated shutdown enable functionality for power management
• Low dropout series architecture ensuring stable regulation
• High precision with tight initial accuracy tolerance
• Compact SOT-23-5 footprint suitable for space-constrained designs

Voltage Reference Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition systems needing precise voltage references
• Medical equipment requiring stable analog front-ends

Voltage Reference Procurement Notes

Verify the suffix 'EMFX' indicates tape-and-reel packaging distinct from 'EMF'. Confirm RoHS compliance status as detailed in official documentation. Ensure the specific output voltage variant matches the design requirement. Check for automotive qualification if operating in harsh environments, as standard versions differ from Q1 variants.

Voltage Reference Selection Notes

Select this component when a fixed 3 V reference with high accuracy is required in a small package. Consider the 60 µA quiescent current for battery life calculations. Verify that the input voltage remains within the 3.4 V to 5.5 V range for proper regulation. Compare noise specifications against application sensitivity requirements.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references from Texas Instruments. The family includes various output voltages and accuracy grades. The 'NOPB' suffix denotes lead-free and rohs-compliant construction. Other variants exist with different accuracies or automotive qualifications, such as the LM4132-Q1 series.

Voltage Reference Replacement Considerations

Direct substitutes include other LM4132 variants with matching output voltages and packages. Cross-reference with LM4132EMF-3.0/NOPB for non-reel packaging equivalents. Verify pinout compatibility before substitution.