LM26480QSQX-CF/NOPB

Overview

The LM26480QSQX-CF/NOPB is an automotive-grade power management IC featuring two high-current synchronous buck DC-DC converters and two low-dropout linear regulators. It operates within an input voltage range of 1.74 V to 5.5 V, delivering up to 1.5 A per buck channel and 300 mA per LDO. The device utilizes a 2 MHz PWM switching frequency with automatic soft-start capabilities. It supports output voltages from 800 mV to 3.5 V for the buck converters and 1 V to 3.5 V for the LDOs. The component is housed in a 24-pin WQFN EP package and complies with AEC-Q100 standards for operation between -40°C and +85°C.

Feature Summary

• Integrates dual high-current step-down DC/DC converters and dual linear regulators for comprehensive power management
• Includes independent enable controls and power good indicators for precise channel monitoring
• Features thermal overload protection and current limit protection for enhanced system reliability
• Optimized for low quiescent current consumption suitable for battery-powered applications

Applications

• Advanced application processors requiring multiple regulated voltage rails
• Field-programmable gate arrays (FPGAs) needing efficient power sequencing
• Automotive infotainment systems demanding AEC-Q100 qualified components
• Industrial control units utilizing digital logic interfaces

Procurement Notes

Verify that the specific suffix CF corresponds to the required temperature grade and packaging configuration as defined by Texas Instruments. Confirm AEC-Q100 qualification status aligns with automotive design requirements. Ensure compatibility with reflow soldering profiles specified in the official datasheet. Cross-reference the exact part number against manufacturer databases to avoid substitution errors due to minor suffix variations affecting electrical characteristics or package type.

Selection Notes

Select this component when designing systems requiring integrated buck and LDO solutions in a compact footprint. It is suitable for applications needing high efficiency at 1.5 A loads alongside low-noise LDO outputs. Consider the 2 MHz switching frequency for minimizing external passive component sizes. Evaluate the need for independent channel control and power good signals for complex power-up sequences in processor-centric designs.

Part Context

This device belongs to the LM26480 series of specialized power management ICs designed for digital applications. It consolidates multiple power stages into a single solution, reducing board space compared to discrete implementations. The series is characterized by its integration of switching regulators and linear regulators, targeting high-performance computing and automotive electronics where reliability and efficiency are critical.

Replacement Considerations

LM26480QSQX-AA/NOPB: Similar functionality but may differ in specific suffix parameters; verify electrical specs and package details before substitution.