S-8358F53MC-MLMT2U

Overview

The S-8358F53MC-MLMT2U is a positive output step-up DC-DC controller IC manufactured by ABLIC Inc. It operates within an input voltage range of up to 10 V and provides a fixed output voltage of 5.3 V. The device utilizes a boost topology with a switching frequency of 250 kHz. It features a low quiescent current of 18.7 uA and supports operation temperatures from -40 C to +85 C. The component is housed in a compact SOT-23-5 package suitable for surface mount applications.

Feature Summary

• Integrates a boost regulator controller for efficient step-up power conversion
• Maintains low standby power consumption through reduced quiescent current
• Ensures stable performance across extended industrial temperature ranges

Applications

• Battery-powered portable electronic devices requiring voltage boosting
• Industrial control systems utilizing single-cell battery inputs
• Consumer electronics needing regulated higher voltage rails from low sources

Procurement Notes

Verify the specific suffix MLMT2U against official ABLIC documentation to confirm packaging and tape specifications. Ensure compatibility with existing PCB footprints for the SOT-23-5 package. Cross-reference the 5.3 V output setting with system requirements before procurement. Confirm RoHS compliance status through the manufacturer's latest certification documents.

Selection Notes

Select this component when a fixed 5.3 V output is required from a variable or lower input source. The 250 kHz switching frequency allows for smaller external passive components compared to lower frequency alternatives. Consider the 18.7 uA quiescent current for battery life optimization in standby modes. Verify that the external inductor and diode ratings exceed the controller's operational limits.

Part Context

This part belongs to the S-8358 series of switching controllers designed for high-efficiency power management. The series focuses on minimizing power loss in portable applications. The S-8358F53MC variant specifically targets applications requiring a precise 5.3 V output level. It complements other variants in the family offering different voltage settings and pin configurations.

Replacement Considerations

Check for direct substitutes within the S-8358 series with compatible output voltages. Verify pin-to-pin compatibility if replacing with similar boost controllers from other manufacturers. Ensure thermal characteristics and switching frequencies match the original design constraints.