LM2651MTC-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2651MTC-3.3 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 maximum output current of 1.5 A and integrates a 330 kHz switching frequency to minimize external component size. Encased in a 16-pin TSSOP package, it supports operation across a temperature range of -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for enhanced efficiency and reduced external component count
• Features adjustable switching frequency to optimize performance for specific design requirements
• Includes comprehensive protection mechanisms such as thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supply stages for industrial control equipment
• Battery-powered portable devices requiring efficient voltage stepping

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix configuration against the manufacturer's latest datasheet to ensure compatibility with RoHS standards and lead-free manufacturing processes. Confirm that the 16-pin TSSOP package dimensions match your PCB footprint specifications. Cross-reference the part number with official Texas Instruments documentation to validate availability status and any recent product change notices affecting electrical characteristics or packaging.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from a 4 V to 14 V input source without the need for external feedback resistors. Consider the 1.5 A current limit for load requirements and the 16-pin TSSOP package for space-constrained designs. Evaluate the thermal performance within the -40°C to +125°C operating range to ensure reliability under expected environmental conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2651 family of high-efficiency synchronous buck converters. It shares architectural similarities with other members like the LM2651MTC-ADJ but offers a fixed output voltage variant. The series is characterized by its integrated power switches and support for low external component counts, targeting cost-sensitive and space-efficient power management solutions in modern electronic systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2651MTC-ADJ/NOPB serves as a direct functional substitute if an adjustable output voltage is acceptable instead of the fixed 3.3 V configuration. Verify pin-to-pin compatibility and thermal dissipation characteristics before substitution. Ensure that the application circuit can accommodate the feedback resistor network required for the adjustable variant.