AP2181MPG-13

Overview

The AP2181MPG-13 is a high-side power switch IC from Diodes Incorporated, designed for power distribution applications. It features a single output capable of delivering 1.5 A with a current limit of 2.1 A. The device operates within a supply voltage range of 2.7 V to 5.5 V and has a maximum on-resistance of 110 mOhms. Key timing specifications include a maximum turn-on time of 50 µs and a maximum turn-off time of 10 µs. It functions reliably across an operating temperature range of -40 °C to +85 °C and is housed in an MSOP-8 EP package.

Feature Summary

• Integrates active-low interface enable control for precise switching management
• Provides built-in protection against overcurrent, thermal overload, and undervoltage conditions

Applications

• USB port power switching and distribution
• Peripheral device power management in consumer electronics
• Battery-powered equipment load switching

Procurement Notes

Verify the specific suffix 'MPG-13' against official Diodes Incorporated documentation to confirm pinout, packaging, and RoHS compliance status. Ensure the active-low enable logic aligns with system control requirements. Cross-reference the MSOP-8 EP footprint dimensions during PCB layout to prevent assembly errors. Confirm thermal performance meets design constraints under maximum load conditions.

Selection Notes

Select this component when a single-channel high-side switch with 1.5 A continuous current capability is required. The 110 mOhms on-resistance offers low conduction loss compared to similar 1 A devices. The active-low enable feature simplifies control logic integration. Consider the MSOP-8 EP package for improved thermal dissipation relative to standard packages. Verify that the 2.7 V minimum operating voltage matches the system's power rail availability.

Part Context

This part belongs to the AP21xx series of USB power switches manufactured by Diodes Incorporated. The series provides integrated solutions for protecting downstream loads in portable and industrial applications. The AP2181 variant specifically targets applications requiring higher current handling than the 1 A AP2161 while maintaining compact packaging. It complements dual-channel options like the AP2186 for multi-port designs.

FAQ

What is the logic level for the enable pin?

The AP2181MPG-13 utilizes an active-low interface enable signal to activate the switch.

Does the device include short-circuit protection?

Yes, the IC incorporates current limiting and thermal shutdown protection to safeguard against fault conditions.