AP6507SP-13

Overview

The AP6507SP-13 is a synchronous step-down DC/DC converter manufactured by Diodes Incorporated. It operates with an input voltage range up to 23V and delivers a continuous output current of 3A. The device features an adjustable output voltage starting from 0.8V, regulated via an external resistor divider. It integrates a fixed switching frequency of 340kHz to optimize external component size while maintaining stable performance. The IC includes comprehensive protection mechanisms such as over-current, thermal shutdown, and soft-start functionality. Packaged in an 8-pin SOIC format with an exposed pad for enhanced thermal dissipation, it supports negative temperature coefficient operation for parallel scalability.

Feature Summary

• Integrated synchronous rectification for high efficiency across load ranges
• Fixed 340kHz switching frequency minimizes external passive component requirements
• Built-in soft-start limits inrush current during power-up sequences
• Thermal shutdown and cycle-by-cycle current limiting ensure operational reliability

Applications

• Point-of-load regulation for embedded systems
• Battery-powered portable devices requiring efficient step-down conversion
• Industrial control boards needing isolated or non-isolated low-voltage rails
• Consumer electronics with single-cell lithium-ion battery inputs

Procurement Notes

Verify the specific suffix 'SP-13' against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS directives if required by your assembly process. Cross-reference the exact part number with authorized distributors to avoid counterfeit components. Confirm that the 8-SOEP package footprint matches your PCB design guidelines before finalizing procurement orders.

Selection Notes

Select this component when a 3A output current is required from an input source up to 23V. The fixed 340kHz frequency makes it suitable for applications where electromagnetic interference filtering must be balanced with component size constraints. Consider the exposed pad thermal performance if operating near maximum load currents in enclosed environments. Verify that the minimum output voltage requirement aligns with the internal reference voltage capabilities.

Part Context

This part belongs to the AP65xx series of synchronous buck converters from Diodes Incorporated. It shares architectural similarities with the AP6501 and AP6503 models but offers higher current capacity. The series is designed for cost-sensitive applications requiring reliable power management without complex external compensation networks.

Replacement Considerations

Direct substitutes include the AP6503SP-13 for higher current needs or the AP6501SP-13 for lower current applications within the same pinout family. Other manufacturers offer functionally similar parts like the RT8283A, though pin compatibility and electrical parameters must be verified individually.