L7986ATR

Voltage Regulators - DC DC Switching Regulators Overview

The L7986ATR is a synchronous step-down switching regulator from STMicroelectronics, housed in an 8-pin HSOP EP package. It supports an input voltage range of 4.5 V to 38 V and delivers up to 3 A of output current. The output voltage is adjustable from 0.6 V to the input voltage level. The device features an internal oscillator with a typical switching frequency of 210 kHz to 275 kHz, which can be externally adjusted up to 1 MHz. It operates within a temperature range of -40 °C to 150 °C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a power MOSFET with minimum 3.7 A current limiting capability for high DC output current delivery.
• Supports low dropout operation via 100% duty cycle functionality for efficient voltage regulation.
• Includes internal soft-start and enable functions to manage startup sequences and power states.
• Provides comprehensive protection against overcurrent conditions and thermal overload.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring regulated power supplies
• Automotive electronics applications compatible with wide input voltage ranges
• Embedded systems utilizing surface-mount technology constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'ATR' corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the HSOP EP package variant matches the thermal management requirements of the target PCB design. Ensure compatibility with the intended switching frequency settings before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output buck converter is needed with an input voltage up to 38 V. It is suitable for designs requiring adjustable output voltages starting from 0.6 V. Consider the exposed pad thermal performance if operating near maximum load currents. Verify that the external component count aligns with the minimal requirement specification for cost-sensitive implementations.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the L7986 family of step-down switching regulators manufactured by STMicroelectronics. The family includes variants such as L7986TATR, sharing similar electrical characteristics but potentially differing in packaging or temperature grades. These regulators are designed for monolithic integration of power switches to simplify circuit design.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

L7986TATR is identified as a parameter-equivalent alternative within the same product family. Verify package compatibility and thermal dissipation capabilities when substituting between these variants.