LM4051BIM3X-1.2/NOPB

Voltage Reference Overview

The LM4051BIM3X-1.2/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225 V with an initial accuracy of 0.5%. The device operates within a temperature range of -40°C to +85°C and features a maximum cathode current of 12 mA. It is housed in a compact SOT-23 package, designed for space-constrained applications requiring stable voltage references.

Voltage Reference Feature Summary

• Provides a fixed 1.225 V output for precise voltage referencing
• Micropower operation suitable for battery-powered systems
• Compact SOT-23 surface-mount packaging

Voltage Reference Applications

• Portable instrumentation
• Battery-powered measurement devices
• Data acquisition systems

Voltage Reference Procurement Notes

Verify the complete part number including the /NOPB suffix to ensure lead-free compliance and specific manufacturing lot details. Confirm the operating temperature range matches your application requirements. Check for any recent product change notifications regarding package or material updates from Texas Instruments before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a low-cost, fixed 1.225 V reference is needed in a small footprint. Consider the 0.5% initial accuracy and temperature coefficient if higher precision is required. Ensure the circuit design supports the minimum operating current specified in the datasheet for proper regulation.

Voltage Reference Part Context

This part belongs to the LM4051 family of micropower shunt voltage references. It serves as a cost-effective alternative to more complex reference circuits. The LM4051 series is widely used in industrial and consumer electronics where moderate precision and low power consumption are prioritized over ultra-high accuracy.

Voltage Reference Replacement Considerations

LM4051BIM3X-1.2 is functionally equivalent to LM4051BIM3X-1.2/NOPB, differing only in lead-free status.