S-8358B31MC-NQQT2G

Overview

The S-8358B31MC-NQQT2G is a step-up switching regulator controller manufactured by ABLIC Inc., designed for efficient power management in compact electronic systems. This component operates within an input voltage range of 0.9V to 10V and delivers a fixed output voltage of 3.1V. It features a low quiescent current of 25.9uA, supporting extended battery life in portable applications. The device utilizes PWM/PFM control modes and operates at a switching frequency of 250kHz. Packaged in a small SOT-23-5 surface-mount format, it supports operation across a temperature range of -40°C to +85°C, ensuring reliability in diverse environmental conditions.

Feature Summary

• Integrates PWM/PFM hybrid control mode for optimized efficiency across varying load conditions
• Features ultra-low quiescent current consumption to maximize battery operational duration
• Supports wide input voltage range compatible with single-cell lithium-ion batteries
• Compact SOT-23-5 package design facilitates space-constrained PCB layouts

Applications

• Portable consumer electronics requiring efficient step-up conversion
• Battery-powered sensor modules and IoT devices
• Mobile communication equipment and handheld instruments
• Medical devices and wearable technology with strict size constraints

Procurement Notes

Verify the specific suffix NQQT2G against official ABLIC documentation to confirm tape-and-reel packaging specifications and marking codes. Ensure compatibility with standard SOT-23-5 footprint designs during procurement planning. Cross-reference RoHS compliance status with current regulatory requirements for the target market. Confirm availability through authorized distributors to guarantee genuine component sourcing and traceability.

Selection Notes

Select this model when a fixed 3.1V output is required from a single-cell lithium-ion source. Consider the 250kHz switching frequency for balancing component size and EMI performance. Evaluate the 25.9uA quiescent current against standby power requirements. Verify that the SOT-23-5 package aligns with existing board space limitations and thermal dissipation capabilities of the host system.

Part Context

Part of the S-8358 series of step-up switching regulator controllers from ABLIC Inc. Designed for high-efficiency power management in portable devices. Shares common architectural features with other variants in the series, differing primarily in output voltage settings and package options. Suitable for applications requiring reliable DC-DC conversion with minimal external component count.

Replacement Considerations

S-8358B31MC-NWST2U offers identical electrical characteristics with alternative packaging suffix.