SPX431AM1-L/TR

Overview

The SPX431AM1-L/TR is a shunt adjustable precision voltage reference manufactured by MaxLinear. It operates within an input voltage range of 2.515 V to 36 V and provides an adjustable output voltage from 2.493 V to 36 V. The device supports a maximum shunt current of 150 mA with a minimum operating current of 1 mA. It features an initial accuracy of 0.5% and a temperature coefficient of 30 PPM/C. The component functions without a shutdown mode, draws a typical operating supply current of 10 mA, and withstands a maximum power supply current of 100 mA. It is housed in a SOT-89-3 surface-mount package and is rated for operation between -40°C and +125°C.

Feature Summary

• Provides stable reference voltage via adjustable shunt regulation mechanism
• Maintains high precision with low temperature drift characteristics
• Supports wide input voltage range for flexible circuit integration

Applications

• Precision analog-to-digital converter reference sources
• Programmable power supply feedback loops
• Battery-operated equipment monitoring circuits

Procurement Notes

Verify the specific manufacturer lot code and date code upon receipt to ensure compliance with RoHS standards. Confirm that the received components match the SOT-89-3 package specification exactly. Check for physical damage or lead alignment issues before soldering. Ensure proper handling procedures are followed due to moisture sensitivity classification. Validate part authenticity through authorized distribution channels only.

Selection Notes

Select this component when a wide input voltage range up to 36 V is required for shunt regulation. Choose this part if a compact SOT-89-3 footprint is necessary for space-constrained designs. Consider this device for applications demanding 0.5% initial accuracy and operation across extended industrial temperature ranges. Ensure the circuit design can accommodate the 150 mA maximum shunt current capability.

Part Context

This component belongs to the SPX431A series of voltage references produced by MaxLinear. It serves as a two-terminal shunt regulator alternative to fixed references. The device integrates internal bandgap reference circuitry to maintain stability. It is categorized under PMIC voltage references for power management systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.