AP1212LSL-U

Overview

The AP1212LSL-U is a dual integrated high-side power switch from Diodes Incorporated, optimized for Universal Serial Bus (USB) applications. It features two independent switches with active-low enable inputs and open-drain fault flag outputs. The device supports an input voltage range of 2.7V to 5.5V and provides a minimum continuous current of 500mA per port. Key electrical characteristics include a typical on-resistance of 110mΩ, a maximum short-circuit current limit of 1.25A, and a typical on-state supply current of 110μA. It incorporates thermal shutdown protection, a 2.4V typical under-voltage lockout, and a 1ms soft-start feature.

Feature Summary

• Dual independent high-side switches with active-low enable control
• Integrated thermal shutdown and over-current protection
• Open-drain fault flag output for status monitoring
• Soft-start functionality to prevent upstream voltage drops

Applications

• USB hub circuits
• Hot plug-in power supplies
• Battery-charger circuits

Procurement Notes

Verify the specific suffix 'U' against official Diodes Incorporated documentation to confirm package type and environmental compliance details. Confirm end-of-life status and availability through authorized distributors, as this component may be subject to discontinuation or limited stock constraints.

Selection Notes

Select this component for designs requiring dual USB power distribution with independent channel control. Ensure the application utilizes active-low logic for the enable pins. Verify that the required load current does not exceed the 500mA continuous rating per channel and that the system operates within the specified 2.7V to 5.5V input range.

Part Context

This part belongs to the AP1212 series of dual USB high-side power switches. The series is designed to meet USB specifications for downstream devices. The 'LSL' designation typically indicates a low-enable logic variant in SOP-8 packaging, while the 'U' suffix often denotes specific environmental or tape-and-reel configuration details defined by the manufacturer.

Replacement Considerations

Official datasheets recommend using AP2146 or AP2156 as replacements for new designs. Verify pin compatibility and electrical parameters before substituting.