TLV431BLPRPG

Overview

The TLV431BLPRPG is a discontinued low voltage precision adjustable shunt regulator from onsemi, belonging to the TLV431B series. It features a guaranteed reference accuracy of ±0.5% at 25 °C and ±1.0% over the industrial temperature range of −40 °C to +85 °C. The device operates with a programmable output voltage range of 1.24 V to 16 V and supports a cathode current range of 0.1 mA to 20 mA. It exhibits a sharp low current turn-on characteristic and a low dynamic impedance of 0.25 Ω. Packaged in a TO-92-3 (LP suffix) configuration, it serves as a precise reference voltage source.

Feature Summary

• Programmable output voltage range spanning 1.24 V to 16 V
• High reference accuracy with ±0.5% tolerance at 25 °C
• Sharp low current turn-on characteristic for efficient regulation
• Low dynamic output impedance ensuring stable performance

Applications

• Error amplifier for isolated low output voltage switching power supplies
• Adjustable voltage or current linear and switching power supplies
• Voltage monitoring circuits
• Current source and sink applications
• Low voltage Zener diode replacements requiring precision references

Procurement Notes

Verify component status carefully as this specific part number is officially listed as discontinued by the manufacturer. Confirm availability through authorized distributors or secondary markets if sourcing is required. Ensure that any replacement components meet the same electrical specifications and package dimensions to maintain circuit integrity without redesign.

Selection Notes

Select the TLV431B series when higher initial accuracy than the standard A series is required. The B series provides ±0.5% accuracy compared to ±1.0% for the A series. Consider the TO-92-3 package for through-hole mounting requirements. Evaluate the operating temperature range to ensure compatibility with the -40 °C to +85 °C specification for industrial applications.

Part Context

This component is part of the broader TLV431 family of low voltage precision adjustable shunt regulators produced by onsemi. The family includes variants with different accuracy grades (A, B, C) and packaging options such as TSOP-5 and SOT-23-3. The TLV431B specifically targets applications needing tighter tolerance than the baseline model while maintaining cost-effectiveness.

Replacement Considerations

The datasheet explicitly lists TLV431ALPRPG, TLV431BLPRMG, and TLV431BLPREG as discontinued parts within the same ordering information table. No active substitute part numbers are provided in the official documentation.