AP2171DFMG-7

Overview

The AP2171DFMG-7 is a single-channel high-side power switch IC designed for USB 2.0 applications, manufactured by Diodes Incorporated. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an output current of 1 A with a fixed current limit of 1.5 A. The device features a maximum on-resistance of 110 mOhms and includes protection against overcurrent, overtemperature, reverse current, and under-voltage lockout. It utilizes a UDFN-6 surface-mount package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated fault protection including fixed current limiting, thermal shutdown, reverse current blocking, and under-voltage lockout.
• High-side P-channel topology optimized for USB power distribution and load control.
• Fast switching characteristics with typical rise and fall times of 50 microseconds.

Applications

• USB 2.0 port power switching and distribution
• Battery-powered equipment load management
• Peripheral device power control

Procurement Notes

Verify the specific suffix DFMG-7 to confirm the UDFN-6 package configuration and lead-free status. Ensure compatibility with standard SMD/SMT assembly processes. Confirm RoHS compliance details through official manufacturer documentation before integration into production designs.

Selection Notes

Select this component for single-channel high-side switching requirements where low on-resistance and compact packaging are critical. Compare against the AP2171DWG-7 variant if a SOT-25-5 package is preferred instead of the UDFN-6 form factor. Ensure the 1 A continuous current rating meets the specific load demands of the target application circuit.

Part Context

This part belongs to the AP2171 series of USB power switches from Diodes Incorporated. The series provides integrated solutions for power distribution in portable electronics. The DFMG-7 designation specifically identifies the single-channel version housed in a small outline dual flat no-lead package suitable for space-constrained designs.

Replacement Considerations

The AP2171DWG-7 serves as a functional alternative within the same series, offering identical electrical performance but utilizing a SOT-25-5 package instead of the UDFN-6 footprint. Verify pin-to-pin compatibility and thermal dissipation requirements when substituting packages.

FAQ

What is the maximum operating voltage for the AP2171DFMG-7?

The device supports a working supply voltage range from 2.7 V to 5.5 V.

Does the AP2171DFMG-7 include reverse current protection?

Yes, the IC integrates reverse current protection to prevent backflow from the load to the source.