TLVH431NAQDBZRR

Overview

The TLVH431NAQDBZRR is a three-terminal adjustable precision shunt regulator from the Nexperia TLVH431N family. It operates within a cathode-anode voltage range of Vref to 14 V and supports a sink current capability between 0.08 mA and 70 mA. The device features an A-Grade reference voltage tolerance of 1.0%, with a nominal Vref of 1240 mV at 25 °C. It utilizes a SOT23 surface-mounted package with normal pinning configuration.

Feature Summary

• Programmable output voltage up to 14 V using two external resistors
• Low output noise characteristics for precision applications
• Typical dynamic output impedance of 0.1 Ω
• Active output circuitry providing sharp turn-on characteristics

Applications

• Shunt regulator circuits
• Precision current limiter designs
• Precision constant current sink implementations
• Isolated feedback loops for Switch Mode Power Supplies (SMPS)

Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and pinning configuration. Confirm the component is non-automotive qualified as per the latest datasheet revision. Ensure compatibility with standard SOT23 footprints during PCB layout planning.

Selection Notes

Select this part for applications requiring low noise and precise voltage referencing in compact spaces. The A-Grade tolerance suits high-precision requirements. Verify thermal dissipation limits based on the specific PCB copper area and ambient operating conditions.

Part Context

This component belongs to the TLVH431N family of adjustable precision shunt regulators manufactured by Nexperia. It serves as a modern alternative to traditional Zener diodes, offering superior stability and lower impedance. The family includes variants with different tolerances and temperature ranges housed in SOT23 packages.

Replacement Considerations

Direct replacements include other TLVH431N family members such as TLVH431NAIDBZR or TLVH431NAMQDBZR, provided pinning and tolerance specifications align with the design requirements.