AP2161SG-13

Overview

The AP2161SG-13 is a single-channel high-side power switch from Diodes Incorporated, designed for USB 2.0 and hot-swap applications. It operates within a supply voltage range of 2.7 V to 5.5 V and delivers an output current of 1 A with a maximum current limit of 1.5 A. The device features a typical on-resistance of 115 mΩ and includes integrated over-current and thermal protection. It utilizes an active-low enable input and provides fault reporting via an open-drain flag output with a 7 ms deglitch capability. Packaged in an SOIC-8 surface-mount format, it supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated over-current and thermal limiting with short-circuit protection
• Active-low enable control with very low shutdown current
• Open-drain flag output with 7 ms deglitch blanking time
• Reverse current blocking and controlled rise time

Applications

• USB port power distribution
• Hot-swap circuitry
• Consumer electronics power management
• Computing peripheral hubs

Procurement Notes

Verify the specific suffix 'SG' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure the active-low enable logic matches system requirements. Confirm RoHS compliance status and lead-free finish details directly with Diodes Incorporated or authorized distributors prior to procurement.

Selection Notes

Select this component for single-channel high-side switching where USB 2.0 compliance is required. The 1 A continuous current rating suits standard downstream ports. Consider the SOIC-8 package for PCB layout constraints. Verify that the 115 mΩ on-resistance meets thermal dissipation needs at full load. Ensure the active-low enable signal aligns with the host controller logic levels.

Part Context

This part belongs to the AP2161D family of single-channel power switches. It shares functional similarities with the AP2171D series but differs in enable polarity; the AP2161D uses an active-low enable while the AP2171D uses active-high. Both families offer identical electrical performance regarding current limiting and protection features.

Replacement Considerations

The AP2171SG-13 is a direct pin-compatible alternative within the same family, differing only in having an active-high enable input instead of active-low. Other single-channel 1 A switches from Diodes may require schematic adjustments due to varying enable polarities or package footprints.