S-8357E20MC-NKFT2U

Overview

The S-8357E20MC-NKFT2U is a step-up switching regulator manufactured by ABLIC Inc., belonging to the S-8357 series. It operates with a fixed output voltage of 2.0 V and supports an output current of 46.1 mA. The device features a switching frequency of 300 kHz and a maximum duty cycle of 78%. It functions within an input voltage range of 0.9 V to 10 V, ensuring stable performance across a wide operating temperature range from -40°C to +85°C. The component is housed in a compact SOT-23-5 package suitable for surface mount applications.

Feature Summary

• Integrates a boost topology switching controller for efficient voltage step-up conversion
• Maintains high output voltage accuracy with a tolerance of 2.4%
• Operates at a fixed switching frequency of 300 kHz for consistent power regulation

Applications

• Battery-powered portable electronic devices requiring voltage boosting
• Low-voltage sensor circuits needing stable 2.0 V supply rails
• Embedded systems utilizing single-cell lithium-ion or alkaline batteries

Procurement Notes

Verify the specific suffix NKFT against official ABLIC documentation to confirm tape-and-reel packaging and lead-free status. Ensure compatibility with standard SOT-23-5 footprint designs. Cross-reference the full part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance details directly from the manufacturer's datasheet before finalizing procurement orders.

Selection Notes

Select this component when a fixed 2.0 V output is required from low-voltage sources up to 10 V. The 300 kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 46.1 mA output limit for load requirements. The SOT-23-5 package is ideal for space-constrained PCB layouts. Verify thermal management needs for operation near the upper temperature limits.

Part Context

This part belongs to the ABLIC S-8357 series of step-up switching regulators. The series is designed for applications requiring precise voltage regulation from low-input sources. Similar models in the series offer different fixed output voltages, such as 3.3 V or 5.0 V, while maintaining the same 300 kHz switching frequency and SOT-23-5 package form factor for design consistency across product lines.

Replacement Considerations

Direct replacements include other S-8357 series variants with identical pinouts but different output voltages if system requirements change. Verify that any substitute maintains the 300 kHz switching frequency and SOT-23-5 package dimensions to ensure mechanical and electrical compatibility without redesigning the PCB layout.