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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1.5% 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：0°C ~ 70°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 TLVH431CDBZR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of up to 20 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of 1.5% and a temperature coefficient of 138 PPM/C. It supports a maximum cathode current of 70 mA with a minimum operating current of 80 µA. The component functions reliably across a temperature range of -40°C to +125°C and is housed in a compact SOT-23-3 surface-mount package.
Feature Summary
- Adjustable reference voltage capability spanning from 1.24 V to 18 V for flexible circuit design
- Precision regulation performance with specified initial accuracy and stable temperature coefficient
- Low minimum cathode current requirement enabling efficient operation in power-sensitive applications
Applications
- Portable battery-powered equipment requiring precise voltage monitoring
- Power supply feedback loops for regulated DC-DC converters
- Comparator circuits utilizing the internal reference as a threshold standard
Procurement Notes
Verify the specific suffix codes against official Texas Instruments documentation to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with RoHS standards and check for any recent product change notifications or lifecycle status updates before finalizing procurement decisions.
Selection Notes
Select this component when a low-cost, adjustable shunt regulator is required in a small SOT-23-3 footprint. Consider the 1.5% initial accuracy and 138 PPM/C temperature coefficient against application requirements. Verify that the 70 mA cathode current limit meets the load conditions and that the 20 V maximum input voltage exceeds the system supply.
Part Context
This part belongs to the TLVH431 series of low-voltage adjustable precision shunt regulators from Texas Instruments. The series offers various accuracy grades and package options, including through-hole and surface-mount variants. The C suffix typically denotes the 1.5% initial accuracy grade within this family.
Replacement Considerations
Check for direct pin-compatible alternatives within the same family, such as the TLVH431ACDBZR or TLVH431BCDBZR, which offer different accuracy grades (1% and 0.5%, respectively). Ensure substitute parts maintain the same SOT-23-3 package and electrical specifications.
