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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% SOT89-3
- 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-243AA
- Supplier Device Package：SOT-89-3
- Grade：-
- Qualification：-
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Overview
The TLVH431AIPKG3 is a low-voltage adjustable precision shunt regulator from Texas Instruments, housed in an SOT-89-3 package. It features an initial accuracy of ±1% and a temperature coefficient of 138 PPM/°C. The device supports an adjustable output voltage range from 1.24 V to 18 V with a maximum series input voltage of 20 V. It operates within a temperature range of -40°C to 125°C and handles a maximum cathode current of 70 mA.
Feature Summary
- Provides precise adjustable voltage regulation suitable for low-voltage applications
- Offers high thermal stability across extended industrial temperature ranges
- Delivers consistent performance with tight initial accuracy tolerances
Applications
- Battery-powered equipment requiring stable reference voltages
- Portable devices needing efficient power management solutions
- Industrial control systems utilizing precision shunt regulation
Procurement Notes
Verify the specific suffix IPKG3 confirms the SOT-89-3 surface-mount package configuration. Ensure compatibility with existing PCB footprints designed for TO-243AA or equivalent SOT-89 dimensions. Confirm that the 1% accuracy grade meets the design requirements for the target application circuit.
Selection Notes
Select this component when a compact surface-mount solution is required for low-voltage precision regulation. The SOT-89-3 package offers a balance between thermal dissipation and board space efficiency compared to smaller packages. Consider the 70 mA current capability against load requirements to ensure adequate headroom for stable operation under varying conditions.
Part Context
This part belongs to the TLVH431A family of low-voltage adjustable shunt regulators. It serves as a modern alternative to traditional higher-voltage references, optimized for battery-operated and portable electronics where voltage headroom is limited. The family emphasizes precision and thermal stability in small form factors.
Replacement Considerations
The TLVH431AQPKG3 is listed as a discontinued variant. Verify if the standard TLVH431AIPK or other AEC-Q100 qualified variants meet the specific automotive or reliability requirements previously addressed by the Q-series designation.
