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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)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 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 TL432BIDBZR is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in a SOT-23-3 surface-mount package. It provides an adjustable output voltage ranging from 2.495 V to 36 V. The device features an initial accuracy of 0.5% and a temperature coefficient of 92 PPM/°C. It operates within a temperature range of -40°C to +125°C and supports a maximum cathode current of 100 mA with a minimum operating current of 600 µA. The maximum series input voltage is rated at 37 V.
Feature Summary
- Adjustable output voltage capability spanning from the internal reference level up to 36 V via external resistors
- High initial accuracy of 0.5% ensuring precise voltage regulation across operating conditions
- Low output impedance typical value of 0.2 Ω for stable performance in shunt applications
Applications
- Board-mounted voltage regulation circuits
- Adjustable power supply designs
- Switching power supply feedback loops
- Zener diode replacement in precision reference applications
Procurement Notes
Verify that the specific part number matches the required tolerance grade and package variant. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering suffix corresponds to the correct reel or cut tape packaging option needed for your manufacturing line.
Selection Notes
Select this component when a compact surface-mount solution is required for precision shunt regulation. The 0.5% accuracy suits applications demanding tighter tolerances than standard Zener diodes. Consider the 100 mA current capacity for driving feedback networks or load dumping in low-power switching regulators.
Part Context
This device belongs to the TL432 family of three-terminal adjustable shunt regulators. It offers functionality similar to the TL431 but utilizes different pin arrangements for DBV, DBZ, and PK packages. The TL432 series is designed to provide thermal stability across automotive, commercial, and military temperature ranges.
Replacement Considerations
The TL432BIDBZR serves as a direct functional equivalent to other adjustable shunt regulators with compatible pinouts. Verify pin compatibility against legacy designs using TL431 variants, noting that while electrical characteristics are similar, physical pin assignments may differ between families.
