LM336BLPE3-2-5

Overview

The LM336BLPE3-2.5 is a precision shunt voltage reference diode manufactured by Texas Instruments, belonging to the LM336 series. It provides a nominal reference voltage of 2.49 V with an initial accuracy of ±0.5%. Packaged in a surface-mount TO-236-3 (SOT-23) format, it operates within a temperature range of -55°C to +125°C. The device features a maximum shunt current of 20 mA and a typical temperature coefficient of 20 ppm/°C. Key electrical parameters include a minimum input voltage of 2.44 V and a maximum input voltage of 2.54 V.

Feature Summary

• Provides stable 2.49 V reference output via two-terminal shunt regulation topology
• Delivers high precision with ±0.5% initial accuracy for critical measurement applications
• Operates reliably across extended industrial temperature ranges from -55°C to +125°C
• Utilizes compact SOT-23 surface-mount packaging for efficient board space utilization

Applications

• Precision analog-to-digital converter (ADC) reference sources
• High-accuracy data acquisition systems requiring stable voltage baselines
• Battery-powered instrumentation benefiting from low power consumption
• Portable test equipment requiring robust temperature stability

Procurement Notes

Verify the specific suffix 'LPE3' confirms the lead-free RoHS-compliant variant and the '-2.5' designation ensures the correct 2.49 V output level. Confirm the package type matches the required SOT-23 footprint for PCB layout compatibility. Ensure the operating environment stays within the specified -55°C to +125°C range to maintain the guaranteed ±0.5% accuracy and thermal performance specifications.

Selection Notes

Select this component when a fixed 2.49 V reference is required with tighter tolerance than standard LM336 variants. The B-grade designation indicates superior initial accuracy compared to lower grades. Consider the SOT-23 package if space constraints preclude through-hole options. Verify that the 20 mA maximum shunt current meets the circuit's biasing requirements without excessive power dissipation.

Part Context

This part belongs to the LM336 family of integrated reference circuits, which are widely used as precision shunt regulators. The LM336 series offers various voltage options and accuracy grades. The LM336BLPE3-2.5 specifically represents the 2.49 V version in the B-grade accuracy class, packaged in the modern SOT-23 form factor, replacing older through-hole or larger surface-mount packages in contemporary designs.

Replacement Considerations

LM336BZ-2.5/NOPB: Through-hole TO-92 equivalent with similar electrical characteristics but different package. LM336M-2.5/NOPB: SOIC-8 package alternative offering comparable performance in a surface-mount format. LM336DR-2.5: SOIC-8 package option from the same manufacturer family.