S-8357B54MC-NJNT2G

Overview

The S-8357B54MC-NJNT2G is a non-isolated boost switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 0.9 V to 10 V and provides a fixed output voltage of 5.4 V. The device supports a maximum output current of 1 A with a switchable PWM control topology. Key electrical specifications include a switching frequency of 100 kHz, a maximum duty cycle of 83%, and a supply current of 68.6 uA. It functions in a temperature range from -40°C to +85°C and is housed in a compact SOT-89-3 surface-mount package.

Feature Summary

• Integrates a CMOS driver output for external power transistor control
• Supports switchable PWM control mode for optimized efficiency management
• Features a wide input voltage operating range suitable for single-cell battery applications

Applications

• Portable electronic devices requiring step-up voltage conversion
• Industrial equipment power management systems
• Automotive domain controllers and sensor interfaces

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and thermal characteristics. Ensure that the external components selected for the application circuit meet the voltage and current ratings specified in the datasheet. Confirm RoHS compliance status through the manufacturer's latest product change notifications before finalizing procurement orders.

Selection Notes

Select this component when a high-current boost solution is required in a small footprint. The SOT-89-3 package offers a balance between thermal performance and board space efficiency. Consider the 100 kHz switching frequency for standard passive component sizing. Verify that the external MOSFET can handle the 1 A load current while maintaining acceptable conduction losses.

Part Context

This part belongs to the S-8357 series of switching regulators designed for general-purpose power management. The series focuses on providing robust step-up capabilities for portable and industrial applications. The S-8357 family utilizes advanced CMOS technology to minimize quiescent current while delivering high output currents.

Replacement Considerations

Direct substitutes within the same series include S-8357B48UA-NJHT2G for different voltage outputs. Cross-vendor replacements require matching the boost topology, 1 A current rating, and SOT-89-3 package constraints.