L6986H5V

Voltage Regulators - DC DC Switching Regulators Overview

The L6986H5VTR is a synchronous step-down switching regulator from STMicroelectronics, part of the L6986H series. It delivers up to 2 A DC output current with an input voltage range of 4 V to 38 V. The device features a fixed 5 V output and operates with a programmable switching frequency between 250 kHz and 2 MHz. Key electrical parameters include a quiescent current of 30 µA in low consumption mode and 8 µA in shutdown. It utilizes peak current mode architecture with internal high-side (180 mΩ) and low-side (150 mΩ) MOSFETs.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification for high efficiency at medium to heavy loads
• Low consumption mode (LCM) for optimized light-load efficiency
• Embedded output voltage supervisor with reset functionality
• Programmable switching frequency and synchronization capability

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial standard bus power supplies (12 V - 24 V)
• Car body applications requiring active idle mode operation
• Infotainment systems requiring low noise performance
• Digital load power regulation (µC, FPGA)

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm RoHS compliance status through official documentation. Ensure the fixed 5 V output variant matches the design requirement, as adjustable versions exist within the same family. Check for NRND status if applicable to long-term supply planning.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a fixed 5 V output from wide input ranges up to 38 V. Consider the LCM or LNM modes based on noise and efficiency requirements. Verify thermal management needs given the HTSSOP-16 package and internal resistance values. Ensure the 2 A current rating meets the maximum load demand including transient spikes.

Voltage Regulators - DC DC Switching Regulators Part Context

The L6986H5VTR belongs to the L6986H family of synchronous buck regulators designed for industrial and automotive environments. It complements other variants like the adjustable L6986H and isolated L6986I. The device addresses the need for compact, efficient power solutions in space-constrained designs operating under harsh conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the L6986H family include L6986H (adjustable output) or L6986H33TR (fixed 3.3 V). Evaluate pin compatibility and thermal characteristics when replacing with non-ST equivalents. Verify that alternative components support the required 38 V input and 2 A output specifications.