LM22680QMR-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22680QMR-ADJ/NOPB is an automotive-grade step-down switching regulator from Texas Instruments, part of the SIMPLE SWITCHER family. It integrates a power switch to deliver up to 2 A output current with an input voltage range of 4.5 V to 42 V. The device features adjustable output voltage starting from 1.285 V and operates at a fixed 500 kHz switching frequency. Packaged in an 8-SO-PowerPad (VSSOP) for surface mount installation, it supports operation over an extended temperature range of -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for enhanced reliability in vehicle applications
• Integrated high-side N-channel power switch eliminates external component requirements
• Fixed 500 kHz switching frequency enables compact passive component selection
• Built-in thermal shutdown and cycle-by-cycle current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics modules
• Industrial DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix QMR indicates the specific SOIC PowerPad package variant and ADJ confirms adjustable output configuration. Ensure NOPB denotes lead-free and RoHS compliance status. Confirm AEC-Q100 qualification is required for your specific automotive application tier. Cross-reference the manufacturer datasheet for exact pinout and thermal pad specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring robust voltage regulation under wide input variations. The 2 A current capability suits moderate load applications without excessive heat dissipation. Consider the 500 kHz frequency trade-off between efficiency and filter size. Verify that the 8-pin package fits within the available PCB real estate constraints compared to larger packages like TO-263.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM22680 series of SIMPLE SWITCHER regulators, designed to simplify power supply design through integration. It serves as a rugged alternative to non-automotive grade converters in harsh electrical environments. The series emphasizes ease of use by minimizing external component count while maintaining high efficiency across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22680MRE-ADJ/NOPB shares identical electrical characteristics but utilizes an 8-SOPWR package instead of the QMR variant.