S-8352A33MC-K2ST2U

Overview

The S-8352A33MC-K2ST2U is a step-up DC-DC switching controller manufactured by ABLIC Inc. It operates in PFM mode with a fixed switching frequency of 100 kHz and features a quiescent current of 23.2 uA. The device is housed in an SOT-23-5 package and supports positive output step-up regulation.

Feature Summary

• Integrates pulse frequency modulation (PFM) control for efficient power management
• Designed as a dedicated boost regulator controller IC
• Utilizes a compact surface-mount SOT-23-5 package

Applications

• Portable electronic devices requiring step-up voltage conversion
• Battery-powered systems utilizing boost regulation
• General purpose DC-DC controller circuits

Procurement Notes

Verify the specific suffix K2ST2U against official ABLIC documentation to confirm pinout and electrical characteristics. Ensure compatibility with existing PCB footprints for the SOT-23-5 package. Cross-reference datasheet revisions to validate performance parameters before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 100 kHz PFM boost controller is required. The 23.2 uA quiescent current suits low-power applications. Confirm that external components meet the controller's drive requirements. Validate input voltage ranges against system specifications to ensure stable operation within the designed parameters.

Part Context

This part belongs to the ABLIC S-8352 series of switching controllers. It functions specifically as a boost regulator controller, distinct from integrated regulators. The series targets portable electronics where space efficiency and controlled switching frequencies are prioritized over fully integrated solutions.

Replacement Considerations

Direct substitutes require matching the SOT-23-5 package, 100 kHz frequency, and PFM topology. Verify pin compatibility and control logic levels. No officially confirmed substitute part numbers are available in public records.