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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：18 V
- Current - Output：70 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The TLVH431BIDBZR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 1.24 V to 18 V and features an initial accuracy of ±0.5%. The device supports a maximum cathode current of 70 mA and has a maximum reference input voltage of 18 V. It utilizes a SOT-23-3 surface-mount package and functions across a temperature range of -40°C to +85°C.
Feature Summary
- Provides adjustable output voltage from 1.24 V to 18 V with high initial accuracy.
- Operates as a shunt regulator with low minimum cathode current requirements.
- Designed for space-constrained applications using compact SOT-23-3 packaging.
Applications
- Battery-powered equipment requiring precise voltage monitoring
- Portable devices utilizing low-voltage power supplies
- Industrial control systems needing stable reference voltages
Procurement Notes
Verify the specific suffix 'B' indicates the ±0.5% accuracy grade when sourcing this component, distinguishing it from other tolerance variants in the family. Confirm the 'DBZR' suffix corresponds to the SOT-23-3 package and tape-and-reel delivery format. Ensure compatibility with RoHS3 standards and check for any recent PCN updates regarding assembly sites or marking changes before finalizing procurement plans.
Selection Notes
Select the TLVH431BIDBZR when designs require an adjustable reference up to 18 V with tighter initial accuracy than standard 1.5% variants. Consider the 70 mA cathode current limit for load driving capabilities. Evaluate the SOT-23-3 footprint against available PCB real estate. Compare thermal performance within the -40°C to +85°C operating range against environmental constraints.
Part Context
This component belongs to the TLVH431 series of low-voltage adjustable precision shunt regulators. It serves as a high-accuracy alternative to traditional Zener diodes, offering better stability and lower noise characteristics. The series is designed for modern portable electronics where power efficiency and small form factors are critical design parameters.
Replacement Considerations
- TLVH431AIDBZR (±1% Accuracy)
- TLVH431IDBZR (±1.5% Accuracy)
FAQ
What is the minimum cathode current required for regulation?
The device requires a minimum cathode current of 80 µA to maintain proper regulation within its specified accuracy parameters.
Does the TLVH431BIDBZR support AEC-Q100 qualification?
No, the standard TLVH431BIDBZR is not listed as AEC-Q100 qualified. Automotive-grade versions typically carry specific suffixes such as 'Q' in the part number.
