S-8355M65MC-MDYT2U

Overview

The S-8355M65MC-MDYT2U is a CMOS step-up switching regulator controller from the ABLIC S-8355 series. It operates with an input voltage range of 0.9V to 10V and features a fixed 600kHz switching frequency. The device provides a positive output via a transistor driver stage, supporting a maximum duty cycle of 85%. Designed for surface-mount installation in a compact SOT-23-5 package, it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates reference voltage source and oscillation circuit for boost topology control
• Supports enable control functionality for power management
• Utilizes CMOS process technology for efficient switching regulation

Applications

• Battery-powered portable electronic devices requiring voltage boosting
• Low-voltage input systems needing regulated higher output voltages
• General-purpose DC-DC conversion in space-constrained PCB designs

Procurement Notes

Verify the specific suffix MDYT2U against official ABLIC documentation to confirm packaging type and marking codes. Ensure compatibility with the required output voltage configuration associated with this part number variant. Cross-reference the manufacturer part number directly with datasheet specifications to avoid substitution errors due to similar family members.

Selection Notes

Select this component when a boost controller is required for inputs starting at 0.9V. The 600kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Confirm that the external switch and diode ratings exceed the controller's drive capabilities and expected current loads for reliable operation.

Part Context

This part belongs to the S-8355/56/57/58 series of CMOS step-up switching regulator controllers. These devices are designed to drive external power switches, differing from integrated regulators by requiring discrete inductors and diodes. The series focuses on low-cost, high-efficiency power management solutions for consumer electronics.

Replacement Considerations

Direct replacements within the S-8355 series may exist with different output voltage settings or package variants. Verify pinout compatibility and electrical parameters before substituting. No other public substitute part numbers are confirmed for this specific model.