LM2678T-ADJ/S7002204

Voltage Regulators - DC DC Switching Regulators Overview

The LM2678T-ADJ/S7002204 is a SIMPLE SWITCHER high-efficiency step-down DC/DC switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 8V to 40V and provides an adjustable output voltage from 1.23V to 37V. The device supports a maximum output current of 5A and integrates a 0.45A internal switch. It utilizes pulse width modulation (PWM) control mode at a fixed switching frequency of 260kHz. The component is housed in a 7-pin TO-220 package and functions within a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.45A internal power switch for simplified design
• Utilizes pulse width modulation control for stable regulation
• Features fixed 260kHz switching frequency to minimize external component size
• Includes thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient step-down conversion
• Industrial control systems operating within wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix S7002204 against the official Texas Instruments datasheet to confirm pinout and electrical characteristics match the standard LM2678T-ADJ specifications. Ensure the supplier provides valid RoHS compliance documentation and confirms the component is not obsolete or subject to discontinuance notices before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, through-hole buck converter is required for applications demanding up to 5A output current. The fixed 260kHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the TO-220 package for its thermal dissipation capabilities in environments where heat sinking is feasible without active cooling solutions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2678 family of SIMPLE SWITCHER regulators, designed for high-efficiency power conversion. The family includes variants with fixed output voltages and adjustable outputs, catering to diverse voltage requirements. The LM2678 series is known for integrating protection features and simplifying the design process for engineers developing compact power supplies.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2678T-ADJ/NOPB is a confirmed equivalent part number offering identical functionality and specifications. Verify that any substitute maintains the same TO-220-7 package footprint and electrical ratings to ensure compatibility with existing board layouts and thermal management designs.