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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1.5% TO236AB
- Series：-
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：14 V
- Current - Output：70 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：TO-236AB
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TLVH431NAMQDBZRR is a three-terminal adjustable precision shunt regulator from the Nexperia TLVH431N family. It operates within an output voltage range of 1.24 V to 14 V, set by two external resistors. This specific variant features A-Grade reference voltage tolerance of 1.0% and utilizes mirrored pinning configuration in an SOT23 package. The device supports a cathode current range of 0.08 mA to 70 mA with a typical dynamic impedance of 0.1 Ω.
Feature Summary
- Programmable output voltage up to 14 V using external resistors
- A-Grade reference voltage tolerance of 1.0%
- Mirrored pinning configuration for SOT23 packages
- Low output noise and high sink current capability
Applications
- Shunt regulator circuits
- Precision current limiter designs
- Precision constant current sink implementations
- Isolated feedback loops for Switch Mode Power Supplies (SMPS)
Procurement Notes
Verify that the ordering suffix matches the required pinning configuration, as the MQDBZR designation indicates mirrored pinning distinct from standard variants. Confirm the A-Grade tolerance requirement aligns with design specifications. Ensure the non-automotive qualification status is acceptable for the intended application environment, as this product lacks automotive certification.
Selection Notes
Select this component when precise voltage referencing is required with tight tolerance constraints. The mirrored pinning option facilitates layout flexibility in space-constrained PCB designs compared to standard pinning configurations. Consider the thermal resistance characteristics and power dissipation limits relative to the expected operating temperature range and mounting conditions on the printed circuit board.
Part Context
This part belongs to the TLVH431N family of low-voltage adjustable precision shunt regulators. The family includes variants with different temperature ranges and reference voltage tolerances. The TLVH431N series serves as a replacement for Zener diodes in applications requiring sharper turn-on characteristics and better stability across varying load conditions.
Replacement Considerations
Direct substitutes include other TLVH431N family members such as TLVH431NAQDBZR or TLVH431NAMQDBZR, provided the pinning and tolerance requirements match. Verify compatibility with existing circuit layouts due to potential differences in pin assignments between standard and mirrored versions.
