S-8355M31MC-MCQT2G

Overview

The S-8355M31MC-MCQT2G is a boost switching regulator IC from ABLIC Inc. It operates with an input voltage range of 0.9V to 10V and provides a fixed output voltage of 3.1V. The device supports a maximum output current of 300mA and features a low quiescent current of 18.7µA. It utilizes PWM control with a typical switching frequency of 250kHz. The component is housed in an SOT-23-5 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates a step-up DC-DC converter topology for efficient voltage boosting
• Maintains low power consumption through reduced quiescent current draw
• Provides stable regulated output via internal pulse-width modulation control

Applications

• Single-cell lithium-ion battery powered systems
• Alkaline battery operated devices requiring voltage elevation
• Low-voltage portable electronic equipment

Procurement Notes

Verify the specific suffix MCQT2G against official ABLIC documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprint designs for the SOT-23-5 form factor. Cross-reference electrical parameters such as output voltage tolerance and operating temperature range with the latest datasheet to prevent integration errors during procurement.

Selection Notes

Select this component when a compact boost solution is required for single-cell battery applications. The fixed 3.1V output suits systems needing a stable supply above the nominal cell voltage. Consider the 300mA current limit and 250kHz switching frequency for filter component sizing. Verify that the 0.9V minimum input voltage aligns with the discharge curve of the intended power source.

Part Context

This part belongs to the ABLIC S-8355 series of switching regulators. The series focuses on high-efficiency step-up conversion for portable electronics. The S-8355 family typically integrates power switches and control logic into a small surface-mount package, optimizing space for mobile and wearable device designs.

Replacement Considerations

Check for direct pin-compatible alternatives within the S-8355 series or other ABLIC boost regulators. Verify that substitute parts match the 3.1V output specification and SOT-23-5 package dimensions. Ensure equivalent electrical characteristics regarding input voltage range and maximum output current.