AP65403SP-13

Overview

The AP65403SP-13 is a synchronous buck DC/DC converter manufactured by Diodes Incorporated. It features an input voltage range of 4.75 V to 17 V and provides a single adjustable output from 2.5 V to 12 V with a maximum current of 4 A. The device operates at a fixed switching frequency of 750 kHz and includes integrated shutdown functionality. It is housed in an SO-EP-8 surface-mount package and supports operation within a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous rectification topology for improved efficiency
• Integrated shutdown control pin for power management
• Fixed high-frequency switching operation

Applications

• Point-of-load regulation for embedded systems
• Industrial control power supplies
• Communication equipment backend power distribution

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix designation matches project requirements. Review the official datasheet for latest revision status and compliance documentation prior to integration into final designs.

Selection Notes

Select this component when a 4 A synchronous buck solution is required with a 750 kHz switching frequency. Ensure the input voltage does not exceed 17 V and the load current remains within the 4 A limit. Consider thermal performance in the SO-EP-8 package for the target application environment.

Part Context

This part belongs to the AP654 series of light-load improved synchronous buck converters from Diodes Incorporated. The series offers various switching frequencies and input ranges tailored for different power density requirements in consumer, computing, and industrial applications.

Replacement Considerations

The AP65400 and AP65402 are related parts within the same product family offering similar 4 A capabilities but with different switching frequencies.