LM26420Q1XMHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM26420Q1XMHX/NOPB is a dual synchronous step-down DC-DC converter from Texas Instruments, designed for automotive applications. It operates with an input voltage range of 3V to 5.5V and provides two adjustable output channels, each capable of delivering up to 2A. The outputs are adjustable from 800mV to 4.5V. The device integrates a fixed switching frequency of 2.2MHz and features a low quiescent current of 4.7mA. It is housed in a 16-pin WQFN package with an exposed pad and is qualified to AEC-Q100 standards for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel synchronous buck topology for independent power rail generation
• Automotive-grade qualification ensuring reliability in harsh environments
• Integrated high-frequency switching for compact passive component sizing

Voltage Regulators - DC DC Switching Regulators Applications

• ADAS sensor power distribution networks
• Infotainment system voltage regulation
• Telematics unit power management
• Body control module auxiliary supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and thermal pad configuration. Ensure the ordering part number matches the required package variant. Confirm AEC-Q100 qualification status if automotive compliance is mandatory for the target application design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated or non-isolated rails are required from a single 12V or 5V automotive source. The 2.2MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Verify that the total load current does not exceed the combined thermal limits of the dual channels within the specified ambient temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM26420 family of dual synchronous buck converters. The Q1 designation indicates automotive qualification. The XMHX suffix typically denotes a specific tape-and-reel packaging option for surface-mount assembly. It serves as a power management solution for multi-rail systems requiring high efficiency and small footprint.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM26420Q1XSQX/NOPB: Different package (WQFN-16 vs WQFN-EP). Verify pin compatibility and thermal performance before substitution.