S-8358B38MC-NQXT2G

Overview

The S-8358B38MC-NQXT2G is a step-up switching controller from the ABLIC S-8358 series, designed for boost DC-DC converter applications. It operates with a fixed output voltage of 3.8 V and supports an input supply range of 0.9 V to 10 V. The device features a low quiescent current of 25.9 uA and utilizes PWM/PFM control modes. It functions within a temperature range of -40 C to +85 C and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Integrates PWM/PFM hybrid control mode for optimized efficiency across varying load conditions
• Features ultra-low quiescent current consumption to extend battery life in portable devices
• Supports wide input voltage range suitable for single-cell lithium-ion battery applications

Applications

• Battery-powered portable electronic devices
• Wearable health monitoring equipment
• IoT sensor nodes requiring efficient power management

Procurement Notes

Verify the specific suffix NQXT2G against official ABLIC documentation to confirm tape and reel specifications and marking codes. Ensure compatibility with standard SOT-23-5 footprint designs. Cross-reference datasheet revision history for any recent parameter updates or compliance changes before finalizing procurement orders.

Selection Notes

Select this component when a fixed 3.8 V boost output is required with minimal standby current. The SOT-23-5 package suits space-constrained layouts. Verify that the external inductor and capacitor values align with the internal switching frequency characteristics defined in the official datasheet for stable operation.

Part Context

This part belongs to the S-8358 series of step-up switching controllers by ABLIC Inc. The series focuses on high-efficiency power management for mobile and IoT applications. The B38 designation indicates a fixed 3.8 V output configuration, distinguishing it from adjustable or other fixed voltage variants within the same family.

Replacement Considerations

Consult official ABLIC substitution guides for compatible alternatives. Direct replacements must match the SOT-23-5 package, 3.8 V output, and similar electrical characteristics. Generic boost controllers may not offer identical quiescent current performance.