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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT89-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- 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-243AA
- Supplier Device Package：SOT-89-3
- Grade：-
- Qualification：-
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Overview
The TLVH432BCPK is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 20 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of ±0.5% and a temperature coefficient of 92 ppm/°C. It supports a cathode current range of 80 µA to 70 mA, with a maximum operating temperature of +125°C and a minimum of -40°C. Housed in a SOT-89-3 package, it is designed for surface-mount installation.
Feature Summary
- Adjustable output voltage ranging from 1.24 V to 18 V
- Low-voltage operation starting at 2.5 V
- High precision with ±0.5% initial accuracy
- Wide operating current range from 80 µA to 70 mA
Applications
- Battery-powered equipment
- Portable instruments
- Power supplies
- DC-to-DC converters
Procurement Notes
Verify the specific suffix 'B' indicates the ±0.5% accuracy grade and 'CPK' denotes the SOT-89-3 package configuration. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure the ordering part number matches the required pinout and thermal specifications for the target application environment.
Selection Notes
Select this component when low-voltage operation below 3 V is required alongside high precision. The ±0.5% accuracy makes it suitable for applications demanding tight voltage regulation without external trimming. Consider the SOT-89-3 package for space-constrained designs requiring higher power dissipation capabilities compared to smaller packages like SOT-23.
Part Context
The TLVH432BCPK belongs to the TLVH432 family of low-voltage adjustable precision shunt regulators. This series is engineered to replace traditional Zener diodes in low-voltage circuits, offering superior stability and lower noise. The 'B' grade specifies the tighter tolerance variant within the product line, distinguishing it from standard accuracy versions.
Replacement Considerations
Direct replacements include other TLVH432 variants with matching accuracy grades, such as TLVH432ACPK for ±1% accuracy. Cross-reference with TL432BCPK if higher input voltage capability up to 36 V is acceptable, noting differences in minimum operating voltage and temperature coefficients.
