AP4305UKTR-G1

Overview

The AP4305UKTR-G1 is a specialized power management integrated circuit designed for switch-mode power supplies (SMPS). It functions as a constant voltage and constant current controller, integrating a precise 1.21 V reference with ±0.5% accuracy. The device operates within a supply voltage range of 2.5 V to 18 V and features a quiescent current of 500 µA. Manufactured using silicon technology, it is housed in an SOT-26-6 surface-mount package. The component supports an operating temperature range from -40°C to +105°C and complies with RoHS standards.

Feature Summary

• Integrates a precision 1.21 V reference with tight tolerance for stable regulation
• Supports continuous constant voltage and constant current control modes
• Low quiescent current consumption for efficient power management
• Designed for compact surface-mount applications in SMPS architectures

Applications

• Adapter power supplies
• Battery charger circuits
• Switch-mode power supply systems requiring CC/CV control

Procurement Notes

Verify the specific suffix UKTR against official Diodes Incorporated documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with moisture sensitivity levels and storage conditions prior to assembly. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability. Confirm that the selected variant meets all required environmental and regulatory compliance standards for the target application.

Selection Notes

Select this component when designing SMPS topologies requiring integrated CV/CC control with a fixed 1.21 V reference. Consider the SOT-26-6 package constraints for PCB layout and thermal management. Evaluate the 2.5 V to 18 V input range against system requirements. Verify that the 500 µA supply current aligns with efficiency targets. Ensure the -40°C to +105°C operating range covers the intended environmental conditions.

Part Context

The AP4305 series represents Diodes Incorporated's portfolio of specialized PMIC solutions for power conversion. This specific model integrates sensing and control functions into a single chip, reducing external component count. It belongs to the broader category of AC/DC converters and power management ICs, targeting applications where space efficiency and regulation precision are critical design factors.

Replacement Considerations

Publicly confirmed substitute part numbers for the AP4305UKTR-G1 are not available in the provided source data. Consult official manufacturer cross-reference guides or engineering support for verified alternatives.