L4931ABD35-TRY

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

The L4931ABD35-TRY is a very low drop voltage regulator from STMicroelectronics, providing a fixed 3.5V output with a maximum current of 250mA. It features an inhibit control input for power management and operates within an input voltage range up to 20V. The device offers line regulation of 18mV and load regulation of 18mV, with a typical dropout voltage of 400mV at full load. It includes thermal shutdown and short-circuit protection, ensuring reliable operation across a temperature range of -40°C to +125°C.

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

• Integrated inhibit pin allows for precise power control and standby mode management
• Very low dropout voltage ensures efficient performance even with minimal input-to-output differential
• Built-in thermal shutdown and current limiting protect the device under fault conditions

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

• Battery-powered portable equipment requiring efficient linear regulation
• Embedded systems needing a stable 3.5V supply rail
• Industrial control modules operating in wide temperature environments

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

Verify the specific suffix 'TRY' against the manufacturer's latest datasheet to confirm package type (typically TO-92 or similar small outline) and tape/reel specifications. Ensure the inhibit pin configuration matches your system design requirements. Cross-reference the part number with official STMicroelectronics distributors to avoid counterfeit components and confirm current production status.

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

Select this component when a fixed 3.5V output is required with moderate current capability. Consider the inhibit feature if system-level power sequencing is necessary. Evaluate the thermal performance based on the expected ambient temperature and load current to ensure the junction temperature remains within safe limits without additional heatsinking.

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

This part belongs to the L4931 series of very low drop regulators from STMicroelectronics. The series is designed for applications requiring high efficiency and reliability in compact packages. Variants within the series offer different fixed output voltages and package options, catering to diverse power management needs in consumer and industrial electronics.

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

Direct substitutes include other L4931 variants with compatible output voltages and packages, such as L4931ABD33-TRY or L4931ABD50-TRY, provided the voltage level meets circuit requirements. Verify pinout compatibility and electrical characteristics before substitution.