S-8357N50MC-O3JT2G

Overview

The S-8357N50MC-O3JT2G is a step-up switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 0.9V to 10V and provides a fixed output voltage of 5.0V. The device features a switching frequency of 300kHz and supports a maximum output current of 54.8mA. It utilizes a PWM control method with a maximum duty cycle of 78%. Designed for surface-mount installation, it is housed in a compact SOT-23-5 package. The component ensures reliable operation across a wide temperature range from -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency boost converter topology optimized for low-power applications
• Features a fixed 5.0V output configuration for simplified circuit design
• Operates with a standard 300kHz switching frequency to balance size and performance

Applications

• Portable electronic devices requiring stable 5V power rails
• Battery-powered systems needing voltage boosting from lower cell voltages
• General-purpose DC-DC conversion in consumer electronics

Procurement Notes

Verify the complete part number including suffixes against official distributor catalogs to ensure correct packaging and tape specifications. Confirm RoHS compliance status through the manufacturer's latest environmental declarations. Cross-reference datasheet revisions to validate pinout compatibility and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when a fixed 5V output is required from inputs between 0.9V and 10V. The 54.8mA current limit suits light-load applications. Ensure the PCB layout accommodates the SOT-23-5 footprint. Verify that the 300kHz frequency aligns with external inductor selection requirements for the target application bandwidth.

Part Context

This part belongs to the S-8357 series of switching regulators from ABLIC. The series focuses on cost-effective power management solutions for portable devices. The N50 suffix indicates the specific 5.0V output voltage variant within the family. The O3JT2G suffix defines the specific reel packaging and marking code for manufacturing traceability.

Replacement Considerations

Direct substitutes include other S-8357 series variants with compatible output voltages and packages. Verify pin-to-pin compatibility and electrical parameters such as switching frequency and current limits before substitution.