S-8352A46MC-K3FT2U

Overview

The S-8352A46MC-K3FT2U is a step-up switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 0.9 V to 10 V and provides a fixed output voltage of 4.6 V. The device utilizes a boost topology with a typical switching frequency of 50 kHz. It features a low quiescent current of 18.7 µA and supports a maximum output current of 231 mA. The component is housed in a compact SOT-23-5 package, suitable for surface-mount applications across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency boost converter controller optimized for single-cell lithium-ion battery applications.
• Features ultra-low standby current consumption to maximize battery life in portable devices.
• Includes built-in protection mechanisms against over-current and thermal overload conditions.

Applications

• Power management for mobile phones and smartphones
• Portable media players and handheld gaming devices
• Digital cameras and camcorders
• GPS navigation units

Procurement Notes

Verify the specific suffix K3FT2U against official ABLIC documentation to confirm pinout compatibility and electrical tolerances. Ensure that external inductor selection matches the required current ratings for the target application. Confirm RoHS compliance status through the manufacturer's latest certification records before finalizing procurement orders.

Selection Notes

Select this component when a fixed 4.6 V output is required from a single-cell lithium-ion source. Consider the 18.7 µA quiescent current for battery-operated systems requiring extended standby times. Evaluate the SOT-23-5 package constraints regarding thermal dissipation and PCB space availability compared to alternative regulator families.

Part Context

This part belongs to the S-8352 series of step-up switching regulators designed for portable electronics. The series focuses on minimizing power loss during idle states while maintaining stable output voltages under varying load conditions. It serves as a core power management solution for devices powered by single-cell lithium batteries.

Replacement Considerations

Direct substitutes include other ABLIC S-8352 variants with different output voltage suffixes, such as S-8352A33MC or S-8352A38MC, provided the system design accommodates the voltage difference. Cross-brand replacements require careful verification of pinouts and control logic compatibility.