LM4051BEM3-ADJ/NOPB

Voltage Reference Overview

The LM4051BEM3-ADJ/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It operates within a supply voltage range of 2.495 V to 37 V and delivers an adjustable output voltage from 1.24 V to 10 V. The device features an initial accuracy of 0.1% and a temperature coefficient of 50 ppm/°C. It supports a maximum cathode current of 12 mA and functions reliably across an operating temperature range of -40°C to +85°C. Packaged in a compact SOT-23-3 surface-mount case, it draws a typical cathode current of 65 µA.

Voltage Reference Feature Summary

• Adjustable output voltage capability spanning 1.24 V to 10 V
• High precision with 0.1% initial accuracy and low temperature drift
• Micropower operation with minimal quiescent current consumption

Voltage Reference Applications

• Portable instrumentation requiring stable reference voltages
• Battery-powered measurement systems
• Data acquisition circuits
• Microprocessor supervisory circuits

Voltage Reference Procurement Notes

Verify the specific suffix configuration against the manufacturer datasheet to ensure compatibility with required performance specifications. Confirm that the ordering code matches the intended package type and temperature grade. Cross-reference the part number with official distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when an adjustable reference is needed within a limited space constraint provided by the SOT-23-3 package. Ensure the application voltage requirements fall within the 1.24 V to 10 V output range. Consider the 50 ppm/°C temperature coefficient for thermal stability needs and verify that the 12 mA maximum cathode current meets the load requirements of the target circuit design.

Voltage Reference Part Context

This device belongs to the LM4051 series of micropower shunt voltage references. It serves as a high-precision alternative to fixed-voltage zener diodes, offering superior accuracy and lower power consumption. The series is designed for applications demanding reliable voltage regulation in compact electronic systems without significant thermal impact.

Voltage Reference Replacement Considerations

LM4051AIM3-ADJ/NOPB offers similar functionality with extended temperature range capabilities.