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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% TO92-3
- Series：-
- Mfr：MaxLinear, Inc.
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：18 V
- Current - Output：80 mA
- Operating Temperature：0°C ~ 105°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The SPX432N-L/TR is a three-terminal adjustable shunt voltage regulator manufactured by MaxLinear, Inc. It provides a highly accurate internal bandgap reference of 1.24V with a tolerance of ±0.5%. The device operates within an input voltage range up to 18V and supports a maximum cathode current of 80mA. It is housed in a TO-92-3 package and is designed for surface mount or through-hole applications depending on the specific variant configuration.
Feature Summary
- Provides a stable 1.24V bandgap reference voltage
- Adjustable output voltage capability via external resistors
- High accuracy with 0.5% initial tolerance
Applications
- Precision voltage references in measurement systems
- Adjustable power supply regulation circuits
- Battery-powered equipment requiring stable reference voltages
Procurement Notes
Verify the manufacturer source carefully as this component has been produced by Exar, SiPEX, and MaxLinear. Confirm the package type matches your PCB footprint requirements, specifically distinguishing between SOT-23 and TO-92 variants. Check RoHS compliance status and ensure the datasheet version corresponds to the specific lot date code for qualification purposes.
Selection Notes
Select this component when a low-cost, high-accuracy shunt regulator is required for fixed or adjustable reference applications. Consider the thermal performance and current handling capabilities relative to the load requirements. Ensure the input voltage does not exceed the maximum rating while maintaining sufficient dropout voltage for proper regulation.
Part Context
This part belongs to the SPX432 family of precision shunt regulators. It serves as a direct replacement for similar Zener-based references where higher accuracy and lower temperature coefficient are needed. The family includes variations in packaging such as SOT-23 and TO-92 to suit different assembly needs.
Replacement Considerations
Public confirmed substitute part numbers include SPX432M-L/TR (SOT-23 package) and SPX432N-L (TO-92 package). Verify pinout compatibility and electrical specifications before substitution.
