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Product Detailed Parameters
- Description：IC VREF SHUNT 2.495V SOT23-3
- Series：-
- Mfr：MCC (Micro Commercial Components)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Programmable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23
- Grade：-
- Qualification：-
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Overview
The TL431KB-TP is a programmable shunt voltage reference IC manufactured by MCC. It operates within a cathode voltage range of up to 36 V and provides a fixed output reference of 2.495 V. The device features a tight initial tolerance of ±0.4% and a temperature coefficient of 50 ppm/°C. It supports a cathode current of 1 mA and can sink up to 100 mA. The component is designed for surface mount installation in SOT-23 packages and functions reliably across an industrial temperature range from -40°C to 125°C.
Feature Summary
- Provides a stable 2.495 V reference with high precision
- Supports wide operating voltage up to 36 V
- Ensures thermal stability with low temperature drift
Applications
- Precision power supply regulation circuits
- Voltage monitoring and threshold detection systems
- Battery-operated equipment requiring accurate references
Procurement Notes
Verify the specific suffix 'KB' confirms the ±0.4% tolerance variant, as other TL431 suffixes indicate different accuracy levels. Ensure the 'TP' designation aligns with required packaging formats such as tape and reel or cut tape. Confirm RoHS compliance status matches project environmental standards before finalizing procurement orders.
Selection Notes
Select this component when a fixed 2.495 V reference is required rather than an adjustable type. The ±0.4% tolerance suits applications needing tighter accuracy than standard TL431 variants. Verify that the SOT-23 package dimensions fit the PCB layout constraints and that the 100 mA sink capability meets the circuit's load requirements.
Part Context
This part belongs to the TL431 family of programmable shunt regulators. While similar to adjustable versions, the KB suffix specifies a fixed output voltage. It serves as a cost-effective alternative to more complex reference solutions in linear regulator feedback loops and comparator biasing networks within power management subsystems.
Replacement Considerations
TL431KA-TP offers similar functionality but with ±0.5% tolerance instead of ±0.4%. TS431BCX is another parameter-equivalent option available from Taiwan Semiconductor Corporation.
