LM4125IM5X-2.5/NOPB

Voltage Reference Overview

The LM4125IM5X-2.5/NOPB is a precision micropower shunt voltage reference from Texas Instruments, housed in an SOT-23-5 surface-mount package. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.5%. The device operates within a supply voltage range up to 6 V and supports a maximum shunt current of 5 mA. Key electrical characteristics include a typical dropout voltage of 120 mV at 1 mA and a temperature coefficient of 50 ppm/°C. It functions effectively across an industrial temperature range of -40°C to +85°C while consuming minimal quiescent current.

Voltage Reference Feature Summary

• Provides stable reference voltage with low dropout capability for efficient power management
• Micropower operation ensures minimal energy consumption suitable for battery applications
• Precision performance maintained over wide temperature ranges

Voltage Reference Applications

• Battery-powered portable devices requiring precise voltage monitoring
• Portable instrumentation systems needing stable reference sources
• Handheld meters and data acquisition equipment

Voltage Reference Procurement Notes

Verify the specific suffix 'X' indicates reel packaging when ordering. Confirm the device meets RoHS compliance requirements for your region. Ensure the SOT-23-5 footprint matches your PCB layout constraints. Check that the 2.5 V output aligns with your system's reference needs. Validate thermal performance within the specified operating temperature range.

Voltage Reference Selection Notes

Select this component when a compact, low-power voltage reference is required for portable electronics. The SOT-23-5 package offers space efficiency compared to larger alternatives. Consider the ±0.5% accuracy sufficient for general-purpose applications rather than high-precision metrology. Evaluate the 5 mA load capability against your circuit's current demands. This part is suitable where low quiescent current is critical for extending battery life.

Voltage Reference Part Context

This component belongs to the LM4125 series of precision micropower voltage references. It shares the core architecture with other variants in the family but differs in output voltage and packaging options. The series is designed for applications demanding stability and low power consumption in small form factors.

Voltage Reference Replacement Considerations

Direct substitutes include LM4125IM5-2.5/NOPB which shares identical electrical specifications and pinout. Verify package compatibility as some variants may differ in tape-and-reel versus cut-tape formats.