L6983CQTR

Voltage Regulators - DC DC Switching Regulators Overview

The L6983CQTR is a monolithic synchronous step-down DC-DC converter from STMicroelectronics, designed for high-efficiency power management in portable and industrial applications. It integrates two N-channel power MOSFETs and operates with an input voltage range of 2.7V to 5.5V. The device delivers a programmable output current up to 3A with adjustable output voltages ranging from 0.8V to 3.3V. Operating at a fixed switching frequency of 1MHz, it ensures compact solution size while maintaining low ripple. Key electrical parameters include a quiescent current of 45µA and a shutdown current below 1µA, supporting battery-powered systems requiring extended standby life.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification with dual N-channel MOSFETs for enhanced efficiency
• Fixed 1MHz switching frequency enabling use of small external components
• Ultra-low quiescent and shutdown currents for optimal battery conservation
• Programmable soft-start and precise voltage regulation capabilities

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics such as smartphones and tablets
• Industrial control systems requiring stable low-voltage rails
• Battery-operated devices needing efficient step-down conversion
• Embedded systems with strict power consumption constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'QTR' corresponds to the tape-and-reel packaging configuration when ordering. Confirm that the component meets RoHS compliance standards required for your region. Ensure compatibility with your PCB footprint by checking the QFN package dimensions against your layout specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this component when designing systems requiring high efficiency within a limited input voltage window. It is suitable for applications where space constraints necessitate a compact synchronous buck topology. Consider its 1MHz frequency if minimizing passive component size is critical. Evaluate thermal performance requirements based on expected load currents and ambient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to STMicroelectronics' L6983 family of synchronous step-down converters. It shares core architecture with other variants differing primarily in packaging or temperature grades. The family targets mobile and embedded markets demanding reliable power regulation. Understanding its position within the broader portfolio aids in identifying compatible alternatives or upgrades.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include other L6983 variants with different suffixes indicating package or temperature variations. Verify pinout compatibility and electrical specifications before substitution. Cross-reference with manufacturer documentation to ensure functional equivalence without redesigning surrounding circuitry.