LM2655MTCX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2655MTCX-3.3/NOPB is a synchronous step-down switching regulator manufactured by Texas Instruments, designed for high-efficiency power conversion in compact applications. It integrates high-side and low-side MOSFETs to deliver a fixed 3.3 V output with a maximum load current of 2.5 A. The device operates from an input voltage range of 4 V to 14 V and supports a switching frequency of 330 kHz. Housed in a 16-pin TSSOP package, it functions within a junction temperature range of -40°C to +125°C. Key electrical specifications include a load regulation of 0.6% and shutdown capability for power management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel MOSFETs for efficient synchronous rectification
• Provides fixed 3.3 V output voltage with 2.5 A continuous load current capability
• Supports adjustable switching frequency up to 330 kHz to optimize external component size
• Includes internal soft-start circuitry to limit inrush current during startup

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems and industrial controllers
• Power supply stages for communication equipment and base stations
• Battery-powered devices requiring efficient DC-DC conversion
• General-purpose high-current step-down applications in consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm the fixed output voltage variant. Ensure the package type matches the design requirements, as variations exist between TSSOP and other footprints. Cross-reference the NOPB designation to confirm lead-free and RoHS compliance status prior to integration into production assemblies.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required without external feedback resistors. It is suitable for designs prioritizing efficiency and thermal performance due to integrated synchronous MOSFETs. Consider the 16-TSSOP package constraints for PCB layout and ensure the input voltage remains within the 4 V to 14 V operational window for stable regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2655 family of high-efficiency synchronous buck converters from Texas Instruments. The family is characterized by integrated power switches and support for high switching frequencies to minimize passive component size. The LM2655 series is widely used in applications requiring robust performance and compact form factors for power management solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include other TI synchronous buck regulators with similar current ratings and fixed outputs, such as the LM2651 series or TPS5430 series, provided pin compatibility and electrical specifications align with the original design requirements.