LM22678TJE-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22678TJE-5.0/NOPB is a Texas Instruments SIMPLE SWITCHER step-down DC/DC converter featuring a fixed 5 V output and a maximum 3 A load current. It operates from an input voltage range of 4.5 V to 42 V with a switching frequency of 500 kHz. The device integrates a 1.2 A internal switch, thermal shutdown, and current limit protection. Packaged in a TO-263 (DPAK) surface-mount housing with seven pins, it supports operation between -40 °C and +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency 1.2 A power switch for compact design
• Includes comprehensive protection against overcurrent and excessive temperature
• Utilizes adjustable frequency control to optimize external component size

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive electronics systems
• Distributed power architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status. Confirm the package designation matches the required TO-263 footprint dimensions. Ensure the fixed 5.0 V output variant aligns with the target circuit requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a fixed 5 V output at up to 3 A is required within a 42 V input window. The integrated switch eliminates the need for external power MOSFETs. Verify that the 500 kHz switching frequency suits the available inductor and capacitor space constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2267x series of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2678 but offers optimized performance for automotive and industrial environments. The family provides various fixed output voltages and current ratings within the same package form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22679TJE-5.0/NOPB provides higher current capacity. LM22676TJE-5.0/NOPB offers lower current capability. LM2678T-5.0/NOPB is a through-hole alternative.