AP22818BKBWT-7

Overview

The AP22818BKBWT-7 is a USB power switch IC manufactured by Diodes Incorporated, housed in a TSOT-25 surface-mount package. It features a single N/P-channel high-side output with an on/off interface and non-inverting input logic. The device operates within a load voltage range of 2.7V to 5.5V without requiring a separate supply voltage. It supports a continuous output current of 2A with a maximum on-resistance of 75 milliohms. Integrated protection mechanisms include fixed current limiting, over-temperature shutdown, reverse current blocking, short-circuit protection, and under-voltage lockout (UVLO). A status flag indicates operational state, and the component functions across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates comprehensive fault protection including fixed current limit, thermal shutdown, and reverse current blocking for robust USB port management.
• Provides a low on-resistance path to minimize power loss and heat generation during high-current operation.
• Includes a status flag output to enable system monitoring of the power switch condition without additional components.

Applications

• USB hub power distribution circuits
• Portable electronic device battery management systems
• Consumer electronics peripheral power switching

Procurement Notes

Verify the specific suffix 'BKB' against the manufacturer datasheet to confirm pinout and electrical characteristics match design requirements. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure ESD handling protocols are followed due to the small form factor. Cross-reference the ordering code with official distributor catalogs to avoid substitution errors.

Selection Notes

Select this component when designing USB power paths requiring integrated protection and status feedback in a compact footprint. Compare on-resistance and current limits against alternative switches to ensure compatibility with target load specifications. Evaluate the need for reverse current blocking if bidirectional power flow is possible in the application environment.

Part Context

This part belongs to the AP22818 series of USB power switches from Diodes Incorporated. The series offers various configurations optimized for portable applications. The TSOT-25 package provides a space-efficient solution for dense PCB layouts. The product line emphasizes reliability and integration to reduce external component count in modern consumer devices.

Replacement Considerations

AP2822GKTR-G1 is a discontinued equivalent offering similar N-channel switching capabilities. Verify pin compatibility and protection feature alignment before substituting. Check for any differences in on-resistance or current ratings that may impact thermal performance.