AZ431LBRTR-G1

Overview

The AZ431LBRTR-G1 is a low-voltage adjustable precision shunt regulator from Diodes Incorporated, housed in an SOT-89 package. It provides a programmable output voltage ranging from 1.24V to 18V using two external resistors. The device features a reference voltage tolerance of 1.0%, ensuring high accuracy across the operating temperature range of -40°C to +125°C. It supports a cathode current range from 0.1mA to 100mA and includes a typical dynamic output resistance of 0.05Ω.

Feature Summary

• Offers wide programmable precise output voltage capability
• Ensures high stability under capacitive load conditions
• Features low equivalent full-range temperature coefficient
• Provides high sink current capacity for regulation

Applications

• Switching power supplies
• PC motherboards
• Graphic cards
• Voltage adapters
• Chargers

Procurement Notes

Verify that the component matches the specific SOT-89 package configuration and 1.0% voltage tolerance designation. Confirm compliance with RoHS 3 standards and Halogen-free requirements as specified by the G1 suffix. Ensure the ordering information aligns with the manufacturer's current production status and packaging details before finalizing procurement.

Selection Notes

Select this component when a low-cost, adjustable shunt regulator is required for applications needing precise voltage referencing. The SOT-89 package offers a balance between thermal performance and board space. Consider the 1.0% initial accuracy and 20PPM/°C temperature coefficient for designs requiring stable reference voltages over varying environmental conditions.

Part Context

This part belongs to the AZ431L series of low-voltage adjustable precision shunt regulators. It serves as a direct replacement for standard Zener diodes in various electronic circuits. The series is designed to provide sharp turn-on characteristics and low output impedance, making it suitable for general-purpose voltage regulation tasks in consumer and industrial electronics.

Replacement Considerations

AZ431LARTR-G1 is listed as a parameter-equivalent alternative within the same product family.