SP2526A-1EN-L

Overview

The SP2526A-1EN-L is a dual high-side power switch manufactured by MaxLinear, designed for USB power distribution applications. It operates with an input voltage range of 3V to 5.5V and provides two independent channels, each capable of delivering up to 500mA of load current. The device features a maximum on-resistance of 150mΩ per channel and includes active-high enable control. Integrated protection mechanisms include fixed current limiting at 1A, overtemperature shutdown, and under-voltage lockout (UVLO). Two fault flags provide status monitoring. It is housed in an 8-pin NSOIC package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel high-side switching architecture with active-high enable inputs
• Integrated fault flag outputs for real-time status monitoring
• Comprehensive protection against overcurrent, overtemperature, and undervoltage conditions

Applications

• USB port power management and distribution
• Battery-powered portable electronic devices
• Peripheral hub power control circuits

Procurement Notes

Verify the specific suffix 'L/TR' or 'L' against the manufacturer's current datasheet to confirm packaging type, as tape/reel versus tube availability may vary by production batch. Confirm RoHS compliance status directly with the supplier documentation. Ensure the ordering part number matches the exact pinout and thermal specifications required for the target PCB layout design.

Selection Notes

Select this component when dual independent high-side switching is required for low-voltage loads. The 150mΩ on-resistance offers a balance between conduction loss and cost compared to lower resistance alternatives. Verify that the 500mA continuous current rating meets the peak and steady-state requirements of the connected USB peripherals without exceeding thermal limits in the chosen enclosure environment.

Part Context

This device belongs to the SP252x series of power switches from MaxLinear, which also includes single-channel variants like the SP2525A. The series is characterized by its compatibility with standard USB power standards and compact SOIC packaging. It serves as a direct replacement for legacy discrete MOSFET solutions in space-constrained designs requiring integrated protection logic.

Replacement Considerations

The SP2525A-1EN-L is a single-channel variant within the same family. Cross-referencing with other manufacturers requires verifying identical pinouts, current ratings, and fault flag polarity to ensure functional compatibility without circuit redesign.