TLVH431NAMQDBZRVL

Overview

The TLVH431NAMQDBZRVL 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 typical reference voltage of 1240 mV at 25 °C. It utilizes mirrored pinning in an SOT23 surface-mounted package, where Pin 1 is Cathode, Pin 2 is Reference, and Pin 3 is Anode.

Feature Summary

• Programmable output voltage up to 14 V using two external resistors
• A-Grade reference voltage tolerance of 1.0% for high precision
• Mirrored pinning configuration in SOT23 package
• Low output noise with typical dynamic impedance of 0.1 Ω

Applications

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

Procurement Notes

Verify that the specific suffix VL corresponds to the standard ordering information provided in the datasheet Table 4. Confirm the mirrored pinning requirement matches the circuit layout, as this variant differs from normal pinning configurations. Ensure the application does not require automotive qualification, as the TLVH431N family is specified as non-automotive qualified in the revision history.

Selection Notes

Select this component when a precise 1.0% reference voltage tolerance is required alongside low output noise characteristics. The mirrored pinning option facilitates specific PCB trace routing strategies compared to standard pinning. Ensure the operating temperature range aligns with the -40 °C to 125 °C specification for the QDBZR sub-series variants within the N family.

Part Context

This part belongs to the TLVH431N family of adjustable precision shunt regulators. Unlike the TLVH431DMQDBZR or TLVH431QDBZR215 which belong to older low-voltage families with different voltage ranges, the TLVH431N series extends the maximum cathode-anode voltage to 14 V. It serves as a modern replacement for Zener diodes in on-board regulation and adjustable power supply designs.

Replacement Considerations

Direct substitutes within the same family include TLVH431NAIDBZR for normal pinning or other A-Grade variants like TLVH431NAQDBZR if pinning differences are accommodated. For mirrored pinning alternatives, check TLVH431NAMQDBZR availability. Verify thermal resistance requirements against FR4 or ceramic PCB mounting conditions.