L4931CPT80-TR

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

The L4931CPT80-TR is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 8V output with a maximum continuous current of 250mA. The device operates within an input voltage range up to 20V and features a typical dropout voltage of 0.4V. It includes internal current limiting and thermal shutdown protection for robust operation. The component is housed in a PPAK surface-mount package and is supplied in tape and reel format.

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

• Very low dropout voltage capability suitable for battery-powered systems
• Logic-controlled electronic shutdown function for power management
• Internal current limit and thermal overload protection
• Requires only a small output capacitor for stability

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

• Battery-powered portable electronics
• Low noise power supply regulation
• Local voltage regulation in embedded systems
• Standby mode control in microprocessor units

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

Verify the exact suffix and package type against the official datasheet, as variations exist within the L4931 family. Confirm that the specific part number matches the required 8V fixed output and PPAK packaging. Check for obsolescence status or lifecycle notices from the manufacturer before finalizing procurement decisions.

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

Select this component when a fixed 8V output is required with high efficiency at low voltage drops. Ensure the application demands a maximum load current within the 250mA rating. Consider the PPAK package constraints for thermal dissipation and PCB layout requirements compared to other available packages in the series.

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

This part belongs to the L4931 series of very low drop regulators designed for low power and low noise applications. The series offers various output voltages and packages including SO-8, DPAK, TO-92, and PPAK. The L4931CPT80-TR specifically denotes the 8V fixed output version in the PPAK package with tape and reel packaging.

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

Direct substitutes include other L4931 variants with compatible output voltages and packages, such as L4931CD50-TR for 5V output in SO-8. Verify pin compatibility and electrical specifications before substituting with generic LDO regulators.