S-8357H42MC-NNBT2G

Overview

The S-8357H42MC-NNBT2G is a step-up switching regulator controller manufactured by ABLIC Inc. It operates with a fixed output voltage of 4.2V and features a low quiescent current of 25.9µA. The device utilizes PWM control and supports an input voltage range of 0.9V to 6V. It is housed in a compact SOT-23-5 package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency step-up DC-DC converter topology for voltage regulation.
• Features ultra-low standby current consumption to extend battery life in portable applications.
• Includes built-in protection mechanisms such as over-current protection and thermal shutdown.

Applications

• Battery-powered portable electronic devices
• Mobile communication equipment
• Handheld instruments

Procurement Notes

Verify the complete part number including suffixes against official ABLIC documentation to ensure correct output voltage and package configuration. Confirm RoHS compliance status and manufacturing origin through the latest datasheet or product change notifications prior to procurement.

Selection Notes

Select this component when a fixed 4.2V output is required from a single-cell lithium-ion battery source. Ensure the application demands low quiescent current during standby modes. Verify that the SOT-23-5 package fits the PCB layout constraints and that the operating temperature range meets environmental requirements.

Part Context

This part belongs to the S-8357 series of step-up switching regulators from ABLIC. The series is designed for power management in battery-operated systems, offering a balance of efficiency and low power consumption in a small footprint suitable for space-constrained designs.

Replacement Considerations

Check for direct substitutes within the S-8357 family with different output voltages if system requirements change. Cross-reference with other ABLIC boost controllers ensuring pin compatibility and similar electrical characteristics before substitution.