L6986H3V3TR

Voltage Regulators - DC DC Switching Regulators Overview

The L6986H3V3TR is a synchronous step-down switching regulator manufactured by STMicroelectronics. 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 3.3 V output and operates within a temperature range of -40 °C to +150 °C. Key electrical parameters include a quiescent current of 30 µA at light load, adjustable switching frequency from 250 kHz to 2 MHz, and low on-resistance values of 180 mΩ for the high-side and 150 mΩ for the low-side MOSFETs. It utilizes peak current mode architecture.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology with P-channel high-side power element enabling 100% duty cycle operation
• Integrated embedded output voltage supervisor and programmable soft-start functionality
• Comprehensive protection mechanisms including internal current limiting, overvoltage protection, and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring wide input voltage ranges
• Battery-powered equipment needing efficient power management
• Embedded applications utilizing isolated or non-isolated DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity upon receipt, as the HTSSOP-16 package is sensitive to moisture. Ensure storage conditions comply with humidity sensitivity requirements specified in the datasheet. Cross-reference ordering information with official manufacturer documentation to validate part number accuracy before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required alongside a wide 4 V to 38 V input range. Consider the 2 A continuous current capability and adjustable switching frequency for optimizing efficiency and filter size. Evaluate the industrial temperature grade and robust protection features against standard automotive or commercial alternatives if operating in harsh environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the L6986H series of synchronous step-down regulators. It shares architectural similarities with other variants like the L6986H5VTR but differs in fixed output voltage configuration. The series is characterized by high efficiency, low quiescent current, and integrated protection features suitable for demanding power management applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include L6986H5VTR for different fixed output voltages. For adjustable output versions, consider the base L6986 model. Automotive-grade equivalents may include the A6986 series, which shares similar electrical characteristics but meets specific automotive qualification standards.