LM26420YSQ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM26420YSQ/NOPB is a dual synchronous step-down DC-DC converter from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It features two independent buck channels, each capable of delivering up to 2A of output current. The device operates with an input voltage range of 3V to 5.5V and provides adjustable output voltages from 800mV to 4.5V per channel. It utilizes a fixed 2.2MHz switching frequency to minimize external component size. The IC is housed in a 16-pin WQFN package with an exposed thermal pad, supporting operation temperatures from -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 reliability certified under AEC-Q100 standards
• High-frequency synchronous rectification for improved efficiency and compact design
• Integrated thermal management via exposed pad package

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring multiple regulated rails
• ADAS sensor power distribution networks
• In-vehicle gateway and telematics control units
• Body control modules needing isolated ground references

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Y' against the official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the ordering part number includes the correct tape-and-reel quantity specified by Texas Instruments. Confirm that the supplier provides traceability documentation required for automotive-grade components. Check for any recent product change notices affecting packaging or assembly location.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated outputs are required within a single footprint. 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 both channels. Consider the input voltage stability within the 3V to 5.5V range for your specific vehicle environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM26420 family of high-efficiency synchronous converters. The 'Q1' designation indicates automotive qualification. The 'XSQ' or 'YSQ' suffixes typically denote specific package variants or testing configurations within the WQFN-16 form factor. It serves as a power management solution for complex electronic control units in modern vehicles.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM26420Q1XSQX/NOPB: Verified equivalent with identical electrical specifications and automotive qualification. LM26420Q1XSQ/NOPB: Verified equivalent; verify if the 'X' suffix implies a different reel configuration or minor cosmetic variation. Cross-reference with LM26420YMHX/NOPB only if HTSSOP-20 packaging is acceptable.