AP64500SP-13

Overview

The AP64500SP-13 is a high-voltage synchronous buck DC-DC converter manufactured by Diodes Incorporated. It operates with an input voltage range of 3.8V to 40V and delivers a maximum output current of 5A. The device features an adjustable output voltage starting from 0.8V, fixed at a switching frequency of 570kHz. It utilizes an SO-8EP package for thermal efficiency and includes integrated protection mechanisms such as overcurrent and thermal shutdown.

Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for efficient synchronous rectification
• Supports programmable soft-start to limit inrush current during startup
• Includes comprehensive protection features against overcurrent, overvoltage, and thermal overload

Applications

• Industrial control systems requiring isolated or non-isolated power regulation
• Automotive electronics operating within standard automotive voltage ranges
• Point-of-load (POL) conversion for digital signal processors and memory modules

Procurement Notes

Verify the specific suffix '13' corresponds to the 4000-unit reel packaging configuration when ordering. Confirm that the SO-8EP package footprint matches the target PCB layout, particularly regarding exposed pad thermal requirements. Ensure compatibility with the required input voltage range and output current specifications before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring high input voltages up to 40V with significant output current demands. The fixed 570kHz switching frequency allows for compact external passive component selection compared to lower-frequency alternatives. Consider the thermal performance of the SO-8EP package relative to the expected ambient temperature and load conditions to ensure reliable operation without excessive heatsinking.

Part Context

This part belongs to the AP645xx series of high-voltage synchronous buck converters from Diodes Incorporated. The series is designed for robust performance in demanding environments, offering a balance of high efficiency and compact form factor. The AP64500SP-13 specifically targets designs needing 5A output capability with wide input voltage flexibility.

FAQ

What is the minimum output voltage supported by the AP64500SP-13?

The minimum adjustable output voltage is 0.8V.

Does the AP64500SP-13 support external frequency synchronization?

No, the switching frequency is internally fixed at 570kHz.