AP22653QW6-7

Overview

The AP22653QW6-7 is a single-channel precision current-limited load switch manufactured by Diodes Incorporated. It operates within a supply voltage range of 3 V to 5.5 V and supports a maximum continuous output current of 1.5 A. The device features a typical on-resistance of 55 mΩ at 5 V input. Current limiting is programmable via an external resistor, allowing thresholds between 125 mA and 1735 mA with ±7% accuracy. Key protection mechanisms include overcurrent, thermal shutdown, reverse current blocking, and under-voltage lockout. It utilizes an SOT-26 package and offers a controlled rise time of 0.5 ms.

Feature Summary

• Programmable current limit threshold adjustable from 125 mA to 1735 mA using a single external resistor
• Integrated soft-start function with a typical rise time of 0.5 ms to minimize inrush current
• Comprehensive fault protection including overcurrent, thermal shutdown, reverse current blocking, and UVLO
• Open-drain flag output with 6 ms glitch filtering for reliable overcurrent event reporting

Applications

• Portable electronic devices requiring precise power distribution management
• USB peripheral power switching applications
• Battery-powered systems needing efficient load control
• Industrial equipment requiring robust short-circuit protection

Procurement Notes

Verify the specific suffix QW6-7 against the manufacturer's latest datasheet to confirm packaging details and tape-and-reel specifications. Ensure the external resistor selection aligns with the required current limit range. Confirm RoHS compliance status and automotive qualification requirements if applicable to your design. Cross-reference pin assignments with the official schematic to prevent layout errors during integration.

Selection Notes

Select this component when precise current regulation is critical for load protection. The adjustable limit allows optimization for various downstream circuit requirements. Consider the SOT-26 footprint constraints and thermal dissipation capabilities. Evaluate the need for the open-drain flag output for system monitoring. Compare against fixed-limit switches if programmability is not required for cost reduction.

Part Context

This device belongs to the AP2265x series of intelligent load switches from Diodes Incorporated. It is designed for high-side switching applications where precise current control and fast fault response are necessary. The series targets consumer electronics and industrial markets requiring compact solutions with advanced protection features integrated into a small surface-mount package.

Replacement Considerations

Consult the manufacturer's cross-reference guide for verified substitutes. Ensure any replacement matches the SOT-26 package, 3 V to 5.5 V operating range, and 1.5 A current capability. Verify that alternative parts offer comparable current limit adjustability and protection features.