S-8357B40MC-NIZT2U

Overview

The S-8357B40MC-NIZT2U is a CMOS step-up switching regulator controller manufactured by ABLIC Inc. It operates with a fixed switching frequency of 115 kHz and supports an input voltage range from 0.9 V to 10 V. The device delivers a maximum output current of 0.08 A and features a maximum duty cycle of 78%. Designed for surface-mount applications, it utilizes a SOT-23-5 package. The component functions within a temperature range of -40°C to +85°C and includes built-in protection mechanisms such as overcurrent protection and soft-start functionality.

Feature Summary

• Integrates overcurrent protection and soft-start circuitry for stable operation
• Utilizes synchronous rectification architecture to enhance conversion efficiency
• Supports low-voltage startup capabilities suitable for battery-powered systems

Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment utilizing single-cell lithium-ion or alkaline batteries
• Consumer electronics needing compact DC-DC conversion solutions

Procurement Notes

Verify the complete part number including suffixes against official ABLIC documentation to ensure correct pinout and electrical specifications. Confirm RoHS compliance status through manufacturer datasheets prior to integration. Ensure ordering quantities align with standard reel packaging requirements specified in the product data sheet.

Selection Notes

Select this component when a compact boost controller with integrated protection is required for low-power applications. Consider the 115 kHz switching frequency for balancing size and efficiency. Evaluate input voltage ranges against source characteristics to ensure compatibility with the 0.9 V minimum start-up threshold.

Part Context

This device belongs to the S-8357 series of switching regulators from ABLIC Inc. The series focuses on high-efficiency power management for portable electronics. The specific model integrates control logic with power switches in a small footprint, distinguishing it from discrete solution designs.

Replacement Considerations

Direct substitutes include other ABLIC S-8357 variants with different output voltages or frequencies. Cross-brand replacements require matching SOT-23-5 packages and compatible boost topologies.