LM26420Q0XMHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM26420Q0XMHX/NOPB is a dual synchronous step-down DC-DC converter designed for automotive applications. It integrates two independent buck converters, each capable of delivering up to 2 A of output current. The device operates with an input voltage range of 3 V to 5.5 V and provides adjustable output voltages from 800 mV to 4.5 V per channel. It features a fixed switching frequency of 2.2 MHz, enabling the use of small external components. The IC is housed in a 20-pin HTSSOP package with an exposed thermal pad and is qualified to AEC-Q100 standards for operation over a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel architecture providing independent regulation for two separate loads
• Automotive-grade qualification ensuring reliability in harsh environments
• High-frequency synchronous rectification for improved efficiency and compact design
• Integrated power switches eliminate the need for external diodes

Voltage Regulators - DC DC Switching Regulators Applications

• Infotainment system power distribution
• Instrument cluster voltage regulation
• ADAS sensor power supplies
• Body control module (BCM) power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q0' indicates general automotive grade rather than higher reliability tiers. Confirm the HTSSOP-20 package matches your PCB footprint requirements. Ensure compatibility with the 2.2 MHz switching frequency regarding EMI constraints in your final assembly design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated outputs are required from a single 12V or 24V vehicle rail. Compare against single-channel alternatives if only one load needs regulation. Consider the thermal performance of the HTSSOP package under maximum load conditions compared to larger packages.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM26420 family of high-efficiency synchronous buck converters. It shares core topology with the LM26420-Q1 but may differ in specific automotive quality assurance levels. The family is designed to replace discrete solutions in space-constrained automotive electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM26420Q1XMHX/NOPB offers similar electrical characteristics with potentially different automotive qualification grades. LM26420YMHX/NOPB is a non-automotive version with identical pinout and specifications.