S-8355M18MC-MCDT2U

Overview

The S-8355M18MC-MCDT2U is a step-up DC-DC switching controller IC manufactured by ABLIC Inc. It operates within an input voltage range of 0.9V to 10V and delivers a fixed positive output of 1.8V with a tolerance of ±2.4%. The device utilizes a boost topology with a typical switching frequency of 300kHz and supports a maximum duty cycle of 85%. Packaged in a compact SOT-23-5 (SC-74A) surface-mount housing, it functions reliably across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency step-up converter topology for voltage boosting applications
• Features a fixed output voltage configuration with precise manufacturing tolerance
• Includes an enable control pin for power management and system state control

Applications

• Battery-powered portable electronic devices requiring voltage elevation
• Low-voltage input systems needing stable higher voltage rails
• Embedded circuits utilizing single-cell lithium-ion or alkaline batteries

Procurement Notes

Verify the complete part number including suffixes such as MCDT2U against official ABLIC documentation to ensure correct output voltage and package variant. Confirm RoHS compliance status and lead times through authorized distributors. Cross-reference datasheet revisions to account for potential marking or material changes affecting integration.

Selection Notes

Select this component when a fixed 1.8V output is required from inputs ranging down to 0.9V. Ensure the application current demand aligns with the internal switch capabilities. Verify that the 300kHz switching frequency fits within electromagnetic interference constraints. Compare against other S-8355 series variants if different output voltages or frequencies are needed.

Part Context

This device belongs to the ABLIC S-8355 series of synchronous and non-synchronous boost controllers. The series offers various fixed output options tailored for low-power portable electronics. The S-8355M18MC-MCDT2U specifically targets applications requiring a regulated 1.8V rail from low-voltage sources, providing a compact solution in the SOT-23-5 package.

Replacement Considerations

Check for direct substitutes within the S-8355 family offering identical 1.8V output and SOT-23-5 packaging. Verify pin compatibility and electrical specifications before substituting with other manufacturers' boost controllers.