S-8355Q33MC-OWST2G

Overview

The S-8355Q33MC-OWST2G is a positive output step-up DC-DC controller IC manufactured by ABLIC Inc. It utilizes a boost topology and operates within an input voltage range of 0.9 V to 10 V, delivering a fixed 3.3 V output. The device features a typical quiescent current of 25.9 uA and a switching frequency of 250 kHz. It supports up to 320 mA output current with load regulation of 60 mV. Packaged in a compact SOT-23-5 surface-mount format, it functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency boost converter topology for efficient voltage stepping.
• Maintains ultra-low power consumption through minimized internal quiescent current draw.
• Provides stable regulated output with precise load regulation characteristics.
• Designed for compact surface-mount integration in space-constrained applications.

Applications

• Battery-powered portable electronic devices requiring voltage boosting
• Low-power consumer electronics utilizing single-cell lithium batteries
• Industrial control systems needing reliable PMIC solutions
• Automotive infotainment and sensor modules

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to ensure correct package type and electrical specifications. Confirm RoHS compliance status directly from the manufacturer datasheet before procurement. Ensure ordering quantities align with standard reel packaging requirements specified by the supplier. Cross-reference the part number with authorized distributors to validate authenticity and supply chain integrity.

Selection Notes

Select this component when a fixed 3.3 V output is required from variable or lower input sources. Consider the 250 kHz switching frequency for EMI management relative to other series options. Evaluate the 320 mA current capability against peak load demands. The SOT-23-5 package suits designs prioritizing minimal PCB footprint. Verify thermal performance under maximum load conditions within the specified temperature range.

Part Context

This part belongs to the ABLIC S-8355 series of switching regulators. It shares architectural similarities with the S-8353 series but offers distinct electrical parameters such as higher switching frequencies and optimized quiescent currents. The series targets modern portable electronics requiring efficient power management in small form factors.

Replacement Considerations

Direct substitutes include S-8353J33MC-IYST2U and S-8353H33MC-IWST2U. Verify pin compatibility and electrical parameter alignment, particularly regarding quiescent current and switching frequency differences between the S-8353 and S-8355 series variants.