TL431ACDBVTE4

Overview

The TL431ACDBVTE4 is an adjustable shunt voltage reference integrated circuit manufactured by Texas Instruments. It operates within a cathode voltage range of 2.5 V to 36 V and provides an initial accuracy of ±1%. The device features a maximum output current of 100 mA and a minimum cathode current of 600 µA. It utilizes a SOT-23-5 surface-mount package with dimensions of 2.9 mm x 1.6 mm x 1.15 mm. The component functions across a temperature range of 0°C to 70°C, maintaining a temperature coefficient of 92 ppm/°C.

Feature Summary

• Provides precise adjustable voltage regulation via external resistor divider networks
• Ensures stable performance through low dynamic impedance characteristics
• Supports high-speed operation suitable for switching power supply feedback loops

Applications

• Switching power supply regulation circuits
• Portable equipment power management systems
• DC-to-DC converter control loops

Procurement Notes

Verify the specific suffix 'E4' indicates RoHS compliance during sourcing. Confirm the SOT-23-5 package variant matches design constraints. Ensure the ±1% tolerance meets system requirements. Validate operating temperature limits against environmental conditions. Cross-reference datasheet revisions for any parameter updates.

Selection Notes

Select this component when a compact adjustable reference is required for space-constrained designs. The SOT-23-5 package offers a smaller footprint compared to traditional SOIC options. Consider the ±1% accuracy for applications demanding tighter voltage stability than standard grades. Evaluate thermal performance within the specified 0°C to 70°C operational window.

Part Context

This part belongs to the TL431 family of programmable shunt regulators. It serves as a direct replacement for legacy versions while adhering to modern environmental standards. The device integrates a 2.5 V internal reference with error amplifier functionality. It is widely used in industrial and consumer electronics for voltage monitoring and regulation tasks.

Replacement Considerations

The TL431ACDBVT is a confirmed direct substitute. Verify pin compatibility and electrical specifications before substitution.