LM22679TJ-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22679TJ-5.0/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator featuring a fixed 5 V output and a maximum 5 A load current capability. It operates from an input voltage range of 4.5 V to 42 V with a typical switching frequency of 500 kHz. The device utilizes a TO-263-7 surface-mount package with thermal pad for efficient heat dissipation. It supports an operating temperature range from -40 °C to +125 °C and includes integrated protection features such as adjustable soft-start, cycle-by-cycle current limiting, and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side power switches enable compact external component count
• Adjustable soft-start limits inrush current during startup sequences
• Built-in thermal shutdown and cycle-by-cycle current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supplies for embedded computing systems
• Battery-powered applications requiring wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'NOPB' indicates lead-free composition and RoHS compliance per manufacturer specifications. Confirm the 'TJ' package designation corresponds to the TO-263-7 form factor with exposed thermal pad. Ensure the '-5.0' suffix matches the required fixed 5 V output voltage for your specific circuit design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 5 A buck converter is needed with a wide input voltage range up to 42 V. The fixed 5 V output eliminates the need for external feedback resistors, simplifying board layout. Consider the TO-263 package for its superior thermal performance compared to smaller surface-mount options in high-current applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22679 family of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. It serves as a higher-current alternative to the LM22671 series, offering similar control features but with increased output capacity. The family emphasizes ease of use through integrated power switches and minimal external component requirements.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22679TJ-ADJ/NOPB offers the same electrical characteristics and package but provides an adjustable output voltage instead of a fixed 5 V setting.