S-8355Q34MC-OWTT2U

Overview

The S-8355Q34MC-OWTT2U is a step-up switching regulator controller from ABLIC, designed for high-withstand voltage applications using CMOS technology. It operates within an input voltage range of 0.9V to 10V and delivers a fixed output voltage of 3.4V. The device supports a maximum output current of 320mA with a switching frequency of 600kHz and a maximum duty cycle of 85%. It features low quiescent current consumption and includes an enable function for power management. The component is housed in a surface-mount SOT-23-5 package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Utilizes high-withstand voltage CMOS process technology for robust performance
• Integrates an enable function for efficient power control
• Provides fixed output voltage regulation via internal feedback
• Supports synchronous rectification for improved efficiency

Applications

• Portable electronic devices requiring battery voltage boosting
• Industrial equipment operating with single-cell lithium batteries
• Automotive electronics compatible with wide input voltage ranges
• Consumer gadgets utilizing low-voltage power sources

Procurement Notes

Verify the specific suffix OWTT2U against official ABLIC documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprint designs for the SOT-23-5 configuration. Cross-reference environmental compliance data such as RoHS status directly from the manufacturer's latest datasheet before finalizing procurement orders.

Selection Notes

Select this model when a fixed 3.4V output is required from inputs ranging up to 10V. The 600kHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 320mA output capability relative to load requirements. Verify that the SOT-23-5 package fits the thermal and spatial constraints of the target application design.

Part Context

This component belongs to the ABLIC S-8355 series of step-up switching regulators. The series is characterized by high withstand voltage capabilities and low current consumption. Variants within the series differ primarily in output voltage settings and package options, sharing common core architecture and control logic optimized for portable and industrial power management applications.

Replacement Considerations

Direct substitutes may include other S-8355 series variants with identical pinouts but different output voltages if system flexibility allows. Verify electrical parameters such as switching frequency and output current limits against original design specifications to ensure functional equivalence without circuit modification.