L4931ABV50

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

The L4931ABV50 is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 5 V output with a maximum continuous current of 250 mA. The device features a typical dropout voltage of 0.4 V and operates within an input voltage range up to 20 V. It incorporates internal thermal overload and current limit protections. The component is housed in a TO-220 package and supports operation across a temperature range from -40 °C to +125 °C.

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

• Very low dropout voltage for efficient power management
• Integrated thermal shutdown and current limiting protection
• Logic-controlled electronic shutdown capability

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

• Battery-powered systems requiring low quiescent current
• Local regulation in battery-operated equipment
• Low noise, low power applications

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

Verify the specific suffix 'ABV' against official datasheets to confirm the exact output tolerance (±1%) and package configuration. Confirm availability status as some variants may be discontinued or restricted. Ensure the selected part matches the required thermal dissipation capabilities for the intended application environment.

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

Select this component when a fixed 5 V output is required with high efficiency at low voltage differentials. The ±1% accuracy makes it suitable for precision applications. Consider the TO-220 package for through-hole mounting requirements and adequate heat sinking for higher load currents.

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

This part belongs to the L4931 family of very low drop regulators designed for low power consumption. The family offers various output voltages and packages including SO-8, DPAK, and TO-92. The AB variant specifically denotes tighter output voltage tolerance compared to standard C variants.

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

Check for direct substitutes within the L4931 series with compatible output voltages and tolerances. Verify pin compatibility and thermal performance before substituting with other LDO regulators.