L4931CPT25

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The L4931CPT25 is a fixed-output low-dropout linear voltage regulator from STMicroelectronics, providing a stable 2.5 V output with a maximum load current of 250 mA. It operates within an input voltage range of 2 V to 20 V and features a typical dropout voltage of 0.4 V. The device incorporates internal current limiting and thermal shutdown protection for robust operation. Designed for surface-mount applications, it utilizes the PPAK package configuration.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Very low dropout voltage enables efficient regulation in battery-powered systems
• Logic-controlled electronic shutdown function reduces standby power consumption
• Requires only a small output capacitor for stability, minimizing board space

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronics
• Low noise power supply circuits
• Local voltage regulation in embedded systems

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix codes against official STMicroelectronics documentation to confirm pinout compatibility and electrical tolerances. Ensure the procurement source provides valid traceability for this discontinued or limited-stock component series. Cross-reference the package type to match PCB footprint requirements accurately before ordering.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 2.5 V rail is required with minimal quiescent current draw. The PPAK package suits designs needing compact surface-mount solutions. Verify that the input voltage remains within the specified 2 V to 20 V range to ensure proper regulation and thermal performance under expected load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the L4931 series of very low drop regulators available in multiple packages including SO-8, DPAK, and TO-92. The series offers various fixed output voltages and includes inhibit functionality in specific package variants. It is designed for applications prioritizing low power consumption and high efficiency in space-constrained environments.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Consult official STMicroelectronics substitution guides for verified equivalents. Generic replacements may differ in dropout characteristics or shutdown logic compatibility.