L6984TR

Voltage Regulators - DC DC Switching Regulators Overview

The L6984 is a monolithic synchronous step-down switching regulator designed for high-efficiency power conversion in portable and industrial applications. It integrates two N-channel MOSFETs to minimize external component count and reduce solution size. The device operates with an input voltage range from 2.5V to 16V, providing a regulated output voltage adjustable from 0.8V to 15V. It delivers a continuous output current of up to 4A with internal current limiting protection. The fixed switching frequency of 500kHz allows the use of small inductors and capacitors. Integrated features include soft-start, thermal shutdown, and under-voltage lockout for robust operation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification with dual N-channel MOSFETs for high efficiency
• Wide input voltage range supporting various power supply sources
• Adjustable output voltage with precise reference control
• Built-in protection mechanisms including thermal shutdown and current limit

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics requiring efficient battery-powered regulation
• Industrial control systems needing stable low-voltage rails
• Communication equipment power distribution networks
• Embedded systems with multiple voltage domain requirements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm the operating temperature range matches your application environment. Ensure compatibility with the required output voltage setting via external resistor network. Check for genuine STMicroelectronics sourcing channels to avoid counterfeit components. Validate pinout alignment with your PCB layout design before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this component when high efficiency at moderate currents is critical. The integrated MOSFETs simplify design compared to asynchronous alternatives. Consider the 500kHz frequency for balancing component size and EMI performance. Verify that the input voltage range covers your system's minimum and maximum supply levels. Assess thermal management needs based on expected load conditions and ambient temperature.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to STMicroelectronics' L698x family of synchronous buck converters. The family shares common architecture but varies in current capability and package options. The L6984 specifically targets 4A output applications. It complements lower-current variants like the L6983 and higher-current models in the series. The TR suffix denotes reel packaging suitable for automated assembly processes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include other 4A synchronous buck regulators from ST or competitors. Verify equivalent input voltage range and output current capabilities. Check pin-to-pin compatibility if replacing on existing boards. Compare switching frequency and control loop characteristics for stability. Ensure thermal performance meets system requirements under similar load conditions.