L5985TR

Voltage Regulators - DC DC Switching Regulators Overview

The L5985TR is a step-down switching regulator manufactured by STMicroelectronics, designed to deliver up to 2 A DC output current. It features an embedded Power MOSFET with a minimum current limit of 2.5 A. The device supports an input voltage range from 2.9 V to 18 V and provides an adjustable output voltage starting from 0.6 V. It integrates an internal oscillator operating at a fixed frequency of 250 kHz, which can be externally programmed up to 1 MHz. The component is housed in an 8-VFQFPN package with dimensions of 3 mm x 3 mm and includes thermal protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates an internal 250 kHz switching frequency oscillator that allows for external adjustment up to 1 MHz.
• Features low dropout operation enabling 100% duty cycle functionality for efficient voltage conversion.
• Includes built-in internal soft-start and inhibit control capabilities for stable startup sequences.

Voltage Regulators - DC DC Switching Regulators Applications

• Power supply systems requiring a 3.3 V bus architecture
• Embedded applications utilizing single-output DC-DC conversion
• Industrial equipment requiring compact power management solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging configuration when sourcing components. Confirm the manufacturer designation matches STMicroelectronics to ensure authenticity. Check for RoHS compliance status as indicated in official datasheets. Validate the package type corresponds to the required PCB footprint specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a 2 A output current capability within a small form factor. Ensure the input voltage range aligns with the 2.9 V to 18 V operational limits. Consider the thermal performance characteristics provided by the exposed pad design for heat dissipation requirements. Verify compatibility with the desired switching frequency settings if external synchronization is necessary.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the L5985 series of step-down switching regulators produced by STMicroelectronics. It is categorized under PMIC - Power Management ICs and specifically functions as a voltage converter. The device is part of a family that includes variants like the L5983 and L5980, differentiated primarily by their output current ratings while sharing similar architectural features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative models within the same product family based on current rating requirements. Consult official manufacturer resources for updated replacement recommendations or obsolescence notices.