LM26420XSQ/S7002797

Voltage Regulators - DC DC Switching Regulators Overview

The LM26420XSQ/S7002797 is a dual-channel synchronous step-down DC-DC converter manufactured by Texas Instruments. It features two independent buck regulators, each capable of delivering up to 2 A of output current. The device operates with an input voltage range from 3 V to 5.5 V and provides adjustable output voltages between 800 mV and 4.5 V. It integrates a fixed switching frequency of 2.2 MHz and supports phase-skew synchronization for noise reduction. Packaged in a 16-pin WQFN (4x4 mm) with an exposed thermal pad, it is designed for high efficiency and compact board space.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual independent synchronous buck converters providing separate regulation paths
• Integrated power switches rated for 2 A continuous output per channel
• Fixed 2.2 MHz switching frequency enables the use of small external components
• Phase-skew synchronization capability reduces input/output capacitor ripple currents

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring multiple regulated voltage rails
• ADAS sensor modules needing isolated or synchronized power supplies
• Industrial control boards utilizing low-voltage logic and analog circuits
• Portable electronic devices demanding high-density power management solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure the ordering part number matches the specific package variant required for your PCB footprint. Cross-reference the revision level to guarantee consistency with existing design documentation and validation results.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems that require two independent, high-current buck converters within a limited spatial footprint. The fixed 2.2 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the thermal performance of the WQFN package and ensure adequate copper area on the PCB for heat dissipation under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM26420 family of automotive-grade power management ICs. It is specifically qualified under AEC-Q100 standards for reliability in harsh environments. The series is designed to replace discrete solutions, offering integrated protection features such as overcurrent protection and thermal shutdown for robust system operation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include LM26420Q1XSQ/NOPB and LM26420Q1XSQX/NOPB. Verify that the replacement part maintains the same WQFN-16 package dimensions and pin configuration. Confirm that the electrical specifications, particularly the output current rating and switching frequency, meet the original design requirements.