S-8357B48UA-NJHT2G

Overview

The S-8357B48UA-NJHT2G is a boost switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 0.9 V to 10 V and delivers a fixed output voltage of 4.8 V. The device functions at a switching frequency of 100 kHz with a maximum duty cycle of 83%. It utilizes a synchronous rectifier configuration and lacks clock synchronization capabilities. The component is housed in a surface-mount SOT-89-3 package and supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• Boost topology for step-up voltage regulation
• Wide input voltage compatibility from 0.9 V to 10 V
• Fixed 4.8 V output configuration
• Synchronous rectifier implementation

Applications

• Battery-powered portable electronics requiring voltage boosting
• Low-voltage power supply systems
• General-purpose DC-DC conversion circuits

Procurement Notes

Verify the specific suffix NJHT2G against official ABLIC documentation to confirm packaging, tape-and-reel specifications, and environmental compliance status. Ensure the ordering quantity aligns with manufacturer minimum order requirements and lead times. Cross-reference the Mouser part number 628-S8357B48UA-NJHT2G for accurate distributor availability and current stock levels before finalizing procurement plans.

Selection Notes

Select this component when a fixed 4.8 V output is required from variable or low input sources up to 10 V. The 100 kHz switching frequency allows for moderate external component sizing compared to higher-frequency alternatives. Verify that the load current requirements do not exceed the internal switch limits defined in the electrical characteristics table of the datasheet.

Part Context

This part belongs to the S-8357 series of switching regulators from ABLIC. The series focuses on efficient power management solutions for portable devices. The S-8357B variant specifically targets applications needing stable boosted outputs from single-cell battery sources or other low-voltage rails.

Replacement Considerations

Check for direct pin-compatible substitutes within the S-8357 family offering different output voltages or frequencies. Evaluate alternative boost controllers from other manufacturers if specific package constraints or thermal performance requirements differ from the SOT-89-3 form factor.