L4931CPT25-TR

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

The L4931CPT25-TR is a fixed positive low-dropout linear voltage regulator manufactured by STMicroelectronics, providing a stable 2.5V output with a maximum current capacity of 250mA. It operates within an input voltage range up to 20V and features a typical dropout voltage of 0.4V at full load. The device incorporates internal current limiting and thermal shutdown protection for robust operation. Designed for surface-mount applications, it utilizes a PPAK package and requires only a 2.2µF output capacitor for stability. The component supports an operating temperature range from -40°C to +125°C and offers high supply voltage rejection.

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

• Logic-controlled electronic shutdown function enables standby mode to reduce power consumption in battery-powered systems.
• Very low quiescent current ensures efficient performance in low-power and noise-sensitive applications.
• Integrated internal current limit and thermal overload protection safeguard the device under fault conditions.

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

• Battery-powered portable electronic devices requiring efficient voltage regulation.
• Local voltage regulation in embedded systems with TTL-compatible shutdown control.
• Low-noise power supply circuits for sensitive analog or digital components.

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

Verify the obsolete status of this specific part number before procurement planning. Confirm availability through authorized distributors as stock may be limited. Ensure the PPAK package variant matches your PCB footprint requirements. Validate that the 2.5V fixed output aligns with system design specifications. Check for RoHS compliance documentation if required for your manufacturing standards.

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

Select this component when a fixed 2.5V output is required with minimal external capacitance. Consider the PPAK package constraints regarding thermal dissipation and board space. Evaluate the 250mA current limit against peak load demands. Verify compatibility with the system's shutdown logic levels. Assess the need for thermal protection features in high-temperature environments.

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

This component belongs to the L4931 series of very low drop voltage regulators from STMicroelectronics. The series is characterized by low dropout voltage and low quiescent current, making it suitable for energy-efficient designs. The L4931 family includes various output voltages and packages, with the CPT25 variant specifically offering a 2.5V fixed output in a PPAK configuration.

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

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official manufacturer documentation for potential cross-references or updated product line replacements.