LM2655MTC-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2655MTC-3.3 is a synchronous step-down switching regulator manufactured by Texas Instruments, designed for high-efficiency power conversion in compact applications. It integrates an internal high-side MOSFET with a low RDS(ON) of 0.033Ω to minimize conduction losses. The device operates within an input voltage range of 4 V to 14 V and provides a fixed output voltage of 3.3 V at up to 2.5 A load current. It features a switching frequency of 300 kHz, enabling the use of small external components. The regulator supports operation from -40°C to +125°C and includes thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side MOSFET with low on-resistance for enhanced efficiency
• Provides fixed 3.3 V output suitable for standard logic supplies
• Includes thermal shutdown for robust operation under overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supply stages for microcontrollers and DSPs
• Battery-powered portable devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Ensure proper handling procedures are followed due to surface-mount packaging requirements. Cross-reference datasheet revisions to confirm pinout and electrical specifications match design needs before integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required without external feedback resistors. Consider its 2.5 A current capability and 300 kHz switching frequency for balancing size and performance. Evaluate thermal management needs based on ambient temperature and load conditions within the specified operating range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2655 family of synchronous buck converters from Texas Instruments. It shares architectural similarities with adjustable variants but offers a fixed output configuration. The TSSOP-16 package allows for space-constrained PCB layouts while maintaining adequate thermal dissipation characteristics for moderate power levels.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2655MTCX-ADJ/NOPB if adjustable output is acceptable. Verify compatibility with LM2651 series for lower current applications. Confirm pin-to-pin equivalence with other 16-TSSOP synchronous regulators before substitution.