S-8356M33MC-MEST2U

Overview

The S-8356M33MC-MEST2U is a step-up switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 0.9 V to 5.5 V and provides a fixed output voltage of 3.3 V. The device features a low quiescent current of 25.9 µA and supports PWM/PFM switching modes with a frequency of 1.2 MHz. It is housed in a compact SOT-23-5 package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates ultra-low quiescent current consumption for extended battery life in portable applications.
• Supports automatic transition between PWM and PFM modes to optimize efficiency under varying load conditions.
• Utilizes a compact SOT-23-5 surface-mount package suitable for space-constrained designs.

Applications

• Battery-powered portable electronic devices
• Wearable health monitoring equipment
• IoT sensor nodes requiring low standby power

Procurement Notes

Verify the complete part number against official ABLIC documentation to ensure correct suffix alignment for voltage, package, and tape/reel specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents prior to integration into production schedules.

Selection Notes

Select this component when a fixed 3.3 V output is required from single-cell lithium-ion or alkaline batteries. Ensure the external inductor and diode ratings support the 1.2 MHz switching frequency and maximum output current requirements specified in the electrical characteristics table.

Part Context

This unit belongs to the S-8356 series of step-up switching regulators designed for low-power applications. The series emphasizes minimal current drain during standby while maintaining stable regulation during active operation, targeting consumer electronics and medical devices where power efficiency is critical.

Replacement Considerations

Cross-reference with other S-8356 variants sharing identical pinouts and electrical parameters. Verify that alternative part numbers match the specific output voltage and package configuration before substitution.