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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% SOT89-3
- Series：-
- Mfr：MaxLinear, Inc.
- Package：Tube
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.503V
- Voltage - Output (Max)：20 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：SOT-89-3
- Grade：-
- Qualification：-
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Overview
The SPX431LM1-L is a precision adjustable shunt voltage reference manufactured by MaxLinear. It operates within an output voltage range of 2.49 V to 20 V and features an initial accuracy of 1%. The device exhibits a temperature coefficient of 30 PPM/C and supports a maximum shunt current of 100 mA. Designed for surface-mount installation, it utilizes an SOT-89 package. The component functions reliably across a temperature range from 0°C to +105°C.
Feature Summary
- Provides stable precision voltage regulation through an adjustable shunt architecture
- Ensures high thermal stability with a low temperature coefficient specification
- Supports wide input voltage ranges relative to the reference output
Applications
- Precision voltage reference circuits in power management systems
- Voltage monitoring and threshold detection applications
- Portable equipment requiring stable reference voltages
Procurement Notes
Verify component authenticity and datasheet alignment before integration. Confirm that the SOT-89 package dimensions match the target PCB footprint. Ensure the operating environment remains within the specified 0°C to +105°C temperature limits. Validate that the required shunt current does not exceed the 100 mA maximum rating during peak operation.
Selection Notes
Select this component when a 1% initial accuracy is sufficient for the application requirements. Consider the SOT-89 package constraints regarding thermal dissipation and board space. Evaluate if the 30 PPM/C temperature coefficient meets the system's long-term stability needs compared to lower drift alternatives.
Part Context
This part belongs to the SPX431L series of shunt adjustable precision references. It serves as a cost-effective solution for basic voltage regulation tasks where moderate precision is acceptable. The series offers various package options to suit different manufacturing and assembly requirements.
Replacement Considerations
Check for direct pin-compatible substitutes within the same manufacturer family. Verify that alternative parts maintain the 1% accuracy and 100 mA current capabilities.
