AP3303S9-13

Overview

The AP3303S9-13 is a quasi-resonant PWM controller manufactured by Diodes Incorporated, designed for AC/DC single-ended converter topologies. It operates within a supply voltage range of 10 V to 50 V and supports output power levels between 45 W and 65 W. The device features a switching frequency of 125 kHz with rise and fall times of 70 ns and 20 ns, respectively. It functions in non-isolated configurations and includes an internal oscillator. The component is rated for operation from -40°C to +85°C and is housed in an SSOP-9 package.

Feature Summary

• Implements quasi-resonant switching technology to reduce switching losses and electromagnetic interference.
• Integrates high-voltage startup circuitry for efficient operation across wide input voltage ranges.
• Provides comprehensive protection mechanisms including overvoltage, overcurrent, and thermal shutdown.

Applications

• Adapters for mobile phones and tablets
• Telecommunication equipment power supplies
• Consumer electronics AC/DC converters

Procurement Notes

Verify the specific suffix '13' corresponds to the required tape and reel quantity of 4000 units as indicated in distributor listings. Confirm that the SSOP-9 package variant matches the target PCB footprint design. Ensure compliance with RoHS directives if applicable to the end product requirements. Cross-reference the manufacturer part number against the latest datasheet revision to confirm pinout compatibility.

Selection Notes

Select this controller for designs requiring cost-effective power solutions in the 45W to 65W range. It is suitable for applications where reduced acoustic noise and lower EMI are priorities due to its quasi-resonant nature. Consider the SSOP-9 package constraints for thermal management and board space. Evaluate the 125 kHz fixed frequency against transformer design requirements for optimal efficiency.

Part Context

This component belongs to Diodes Incorporated's portfolio of power management integrated circuits, specifically within the AC/DC switcher category. It complements other controllers like the AP3306 series but utilizes a distinct SSOP-9 package compared to the SO-10 variants found in similar models. The family focuses on providing robust performance for offline power conversion applications.

Replacement Considerations

The AP3306S10-13 is a related controller but uses an SO-10 package and may have different pin assignments. Verify functional equivalence and physical footprint compatibility before substitution. No direct public substitute part numbers are confirmed for this specific model.