TLV431ACDBVR1G4

Overview

The TLV431ACDBVR1G4 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 6 V and provides an adjustable output voltage from 1.24 V to the supply rail. The device features an initial accuracy of ±1% and a temperature coefficient of 138 ppm/°C. It supports a maximum cathode current of 15 mA and functions reliably across an operating temperature range of -40°C to +85°C. Packaged in a compact SOT-23-5 surface-mount format, it serves as a high-performance reference for power management applications.

Feature Summary

• Provides precise adjustable voltage referencing with tight initial accuracy tolerance
• Operates efficiently at low supply voltages down to 2.5 V
• Designed for compact surface-mount integration in space-constrained circuits

Applications

• Precision voltage references in portable battery-powered devices
• Feedback control loops in switching power supplies
• Voltage regulation in low-voltage analog signal conditioning circuits

Procurement Notes

Verify the complete part number including the G4 suffix to ensure compliance with RoHS directives and lead-free manufacturing standards. Confirm the specific package variant matches the required PCB footprint. Cross-reference the datasheet revision date to ensure alignment with current design specifications and environmental regulations before finalizing procurement orders.

Selection Notes

Select this component when low-voltage operation below 3.3 V is required alongside high precision. The SOT-23-5 package offers a smaller footprint compared to traditional three-terminal references. Ensure the application circuit can support the minimum cathode current requirements for stable regulation during light-load conditions.

Part Context

This device belongs to the TLV431 family of low-voltage adjustable shunt regulators. It extends the functionality of standard TL431 devices to lower voltage domains while maintaining comparable accuracy. The family is widely utilized in modern power management designs requiring compact form factors and efficient low-power operation.

Replacement Considerations

Direct pin-compatible alternatives include the TLV431ACDBVR without the G4 suffix or other variants within the TLV431 series. Verify that substitute parts meet the same -40°C to +85°C operating temperature range and ±1% accuracy specifications.