S-8355Q31MC-OWQT2U

Overview

The S-8355Q31MC-OWQT2U is a boost switching controller from the ABLIC S-8355 series, designed for step-up DC/DC conversion. It operates within an input voltage range of 0.9V to 10V and delivers a fixed output voltage of 3.1V. The device features a high switching frequency of 600kHz and supports a maximum duty cycle of 85%. Packaged in a compact SOT-23-5 (SC-74A) surface-mount format, it functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated transistor driver stage for external power switch control
• Fixed 3.1V output configuration with enable pin functionality
• High-frequency operation at 600kHz for reduced passive component size

Applications

• Battery-powered portable electronics requiring voltage boosting
• Low-voltage input systems needing stable higher voltage rails
• Space-constrained designs utilizing small footprint packages

Procurement Notes

Verify the specific suffix 'OWQT2U' against official ABLIC documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure compatibility with your PCB footprint for the SOT-23-5 package. Cross-reference the datasheet for any recent product change notifications or marking changes that may affect integration.

Selection Notes

Select this component when a fixed 3.1V output is required from inputs as low as 0.9V. The 600kHz frequency allows for smaller inductors compared to lower-frequency alternatives. Confirm that the external MOSFET selected can handle the current requirements driven by the internal transistor driver stage. Check if the enable pin logic aligns with system power management needs.

Part Context

Part of the S-8355 series of boost controllers, which offers various fixed output voltages and packaging options. This series is characterized by its wide input voltage range and high switching frequencies, suitable for efficient power management in compact electronic devices.

Replacement Considerations

Check for other S-8355 variants with different output voltages or packages. Verify if S-8356, S-8357, or S-8358 series parts offer similar functionality with potentially different frequency or current capabilities.