AP65454SP-13

Overview

The AP65454SP-13 is a synchronous step-down switching regulator manufactured by Diodes Incorporated. It operates with an input voltage range of 4.5V to 18V and provides a single adjustable output from 0.765V to 6V at up to 4A. The device integrates a 650kHz fixed switching frequency, synchronous rectification for high efficiency, and thermal shutdown protection. It is housed in an 8-SOIC package with an exposed pad (SO-8EP) for enhanced thermal performance and supports operation over a temperature range of -40°C to +85°C.

Feature Summary

• Integrates synchronous rectification to maximize conversion efficiency across the load range.
• Features a fixed 650kHz switching frequency to optimize external component size.
• Includes built-in thermal shutdown protection to safeguard against overheating conditions.

Applications

• Point-of-load regulation for embedded systems
• Power supply stages for industrial control equipment
• Voltage regulation for communication infrastructure modules

Procurement Notes

Verify the specific suffix 'SP-13' to confirm the tape-and-reel packaging configuration and RoHS compliance status. Ensure the ordering quantity aligns with the manufacturer's standard reel size requirements. Cross-reference the datasheet revision date to confirm compatibility with current design specifications and environmental regulations before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is required for 4.5V to 18V input applications needing up to 4A output current. The SO-8EP package offers a balance between pin count and thermal dissipation capabilities. Consider the fixed 650kHz frequency when sizing inductors and capacitors to meet ripple and transient response targets within space-constrained designs.

Part Context

This part belongs to the AP65xxx series of synchronous buck converters from Diodes Incorporated. These devices are designed for general-purpose power management tasks requiring high efficiency and small footprint. The series typically shares common internal architectures but varies in current ratings, input voltage ranges, and switching frequencies to suit diverse application needs.

Replacement Considerations

Consult official substitution guides for electrically compatible alternatives within the same product family. Verify that any substitute matches the pinout, thermal characteristics, and control interface of the original component to ensure seamless integration without circuit redesign.

FAQ

What is the minimum output voltage supported by the AP65454SP-13?

The minimum adjustable output voltage is 0.765V.

Does the AP65454SP-13 include overcurrent protection?

Yes, the device includes cycle-by-cycle current limiting and thermal shutdown protection.