LA431OHPA

Description：IC VREF SHUNT ADJ TO92
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR)

SKU:eab876b1fec1 Category: Voltage Reference Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ TO92
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package：TO-92
Grade：-
Qualification：-

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LA431OHPA

Overview

The LA431OHPA is a low voltage three-terminal adjustable precision shunt regulator manufactured by Diodes Incorporated. It features a reference voltage of 2.495V with ±0.4% tolerance and an adjustable output range from VREF to 36V. The device supports a sink current capability of 120mA and operates within a temperature range of -40°C to +125°C. Packaged in TO-92-3L, it offers a typical dynamic output impedance of 0.2Ω and requires a minimum cathode current of 0.1mA for regulation.

Feature Summary

Precision reference voltage with ±0.4% tolerance
Adjustable output voltage from VREF to 36V
High stability under capacitive load conditions
Low dynamic output impedance

Applications

Switching Mode Power Supply
Voltage Reference Application

Procurement Notes

Verify the specific ordering suffix HPA confirms the TO-92-3L package and RoHS & Halogen Free taping configuration as listed in the manufacturer's ordering information. Confirm that the component meets the required thermal stability specifications for the intended operating environment. Ensure compatibility with existing circuit designs regarding pin assignments and electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a precise adjustable shunt regulator is needed with high accuracy. The ±0.4% tolerance makes it suitable for applications requiring tight voltage control. Consider the TO-92-3L package for through-hole mounting requirements. Evaluate the 120mA sink current capability against the maximum load demands of the target application to ensure adequate performance margins.

Part Context

The LA431 series serves as a replacement for Zener diodes in various electronic circuits. It provides sharp turn-on characteristics and guaranteed thermal stability over applicable temperature ranges. The device is designed for use in switching power supplies and voltage reference applications where precise regulation is critical.

Replacement Considerations

Check datasheets for alternative adjustable shunt regulators to ensure pinout and electrical parameter compatibility. Verify that substitute components meet the same reference voltage tolerance and sink current requirements.