S-8358B50UA-NRJT2U

Overview

The S-8358B50UA-NRJT2U is a positive output step-up DC-DC switching controller IC manufactured by ABLIC Inc. It operates in the SOT-89-3 surface-mount package and utilizes boost topology to regulate voltage. The device supports an input voltage range of 0.9V to 10V and provides a fixed output voltage of 5V. It features a maximum switching frequency of 115kHz and includes internal transistor drivers for external power switches. The component is rated for operation within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a boost switching controller with internal transistor drivers for simplified external circuit design
• Supports wide input voltage ranges from 0.9V up to 10V for flexible power supply configurations
• Operates reliably across extended industrial temperature environments from -40°C to +85°C

Applications

• Battery-powered portable electronic devices requiring voltage boosting
• General-purpose power management systems utilizing external MOSFETs
• Embedded circuits needing stable 5V regulation from lower input sources

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and electrical tolerances. Ensure the selected variant matches the required output voltage and package type for your design. Cross-reference the manufacturer part number with authorized distributors to confirm current production status and availability constraints before finalizing procurement plans.

Selection Notes

Select this controller when a compact SOT-89-3 footprint is required for boost applications. It is suitable for designs needing a fixed 5V output driven by external switching elements. Consider the 115kHz maximum frequency for balancing efficiency and component size. Verify that the external components can handle the expected current loads and voltage stresses defined in the datasheet specifications.

Part Context

This component belongs to the S-8358 series of switching controllers from ABLIC Inc., designed for efficient power management in small form factors. The series offers various output voltage options and packaging styles to accommodate different system requirements. As a dedicated controller, it requires external power switches but simplifies the overall design by integrating control logic and protection features within the IC.

Replacement Considerations

Direct replacements include other variants within the S-8358 family such as S-8358B50MC-NRJT2U, provided the package and pinout are compatible. Verify functional equivalence regarding switching frequency and input voltage ranges before substitution.