LM2840YQMKX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2840YQMKX/NOPB is an automotive-grade, adjustable step-down DC/DC regulator from the Texas Instruments LM284x-Q1 series. It supports a 4.5 V to 42 V input range and delivers up to 300 mA output current. The device operates at a fixed switching frequency of 1.25 MHz and provides an adjustable output voltage between 0.765 V and 34 V. Packaged in a thin SOT-23-6 (TSOT) surface-mount case, it functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for enhanced reliability
• Integrated power switch enables compact design in a thin six-pin package
• Fixed high-frequency operation allows for small external passive components

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Body control modules
• Industrial sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'YQMKX' against the official datasheet to confirm the exact tape-and-reel quantity and marking configuration. Ensure the order matches the Q1 automotive grade designation. Confirm RoHS compliance status via the manufacturer's latest documentation before finalizing procurement.

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 300 mA limit suits low-power logic or sensor rails. Consider the 1.25 MHz frequency for balancing efficiency and component size. Verify thermal performance in the target enclosure given the small TSOT footprint.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM284x-Q1 family, which includes variants with 100 mA and 600 mA capabilities. All members share the same SIMPLE SWITCHER architecture and pinout compatibility, allowing for scalable power management designs across different current requirements within the same automotive platform.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LM284x-Q1 variants such as LM2841QMKX/NOPB (300 mA) or LM2842QMKX/NOPB (600 mA), provided the current demand fits. Non-automotive equivalents like the standard LM2840YMKX/NOPB lack AEC-Q100 certification.