LM2655MTC-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2655MTC-3.3/NOPB is a synchronous step-down switching regulator manufactured by Texas Instruments, designed for high-efficiency power conversion in compact applications. It operates with an input voltage range of 4 V to 14 V and provides a fixed output voltage of 3.3 V. The device delivers a continuous output current of 2.5 A and integrates internal power switches to minimize external component count. It functions at a typical switching frequency of 330 kHz, allowing the use of small inductors and capacitors. The IC is housed in a 16-pin TSSOP package and supports operation over an extended temperature range from -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous N-channel MOSFETs for high efficiency and reduced solution size
• Includes adjustable soft-start to limit inrush current during startup
• Features cycle-by-cycle current limiting and thermal shutdown protection
• Supports remote sense capability for improved load regulation accuracy

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supplies for industrial equipment
• Bias voltage generation for communication modules
• Battery-powered devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the ordering part number matches the required package type and temperature rating. Cross-reference with authorized distributors to validate authenticity and supply chain integrity before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required with up to 2.5 A load current. It is suitable for designs prioritizing board space savings due to its integrated synchronous rectification. Consider the input voltage range and thermal management requirements relative to the expected ambient conditions and PCB copper area available for heat dissipation.

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 its ability to drive significant loads while maintaining high efficiency across a wide input voltage range. The specific model differs from the adjustable variant primarily in its fixed output voltage configuration, simplifying design implementation for standard voltage rails.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include LM2655MTCX-ADJ/NOPB if adjustable output is acceptable, or LM2655MM/NOPB for a different package option. Verify that any substitute maintains the same current rating, switching frequency characteristics, and control interface compatibility.