S-8355M50MC-MDJT2U

Overview

The S-8355M50MC-MDJT2U is a boost switching controller manufactured by ABLIC Inc. It operates within an input voltage range of 0.9V to 10V and delivers a fixed output voltage of 5V. The device features a switching frequency of 600kHz with a maximum duty cycle of 85%. It supports a single positive output configuration in a surface-mount SOT-23-5 package. The component functions as a transistor driver for external power switches, ensuring stable DC-DC conversion across a wide operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates a high-frequency 600kHz oscillator for compact passive component sizing
• Supports wide input voltage operation suitable for single-cell battery applications
• Includes enable control functionality for system power management

Applications

• Portable electronic devices requiring step-up voltage regulation
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded circuits needing stable 5V logic supply from lower voltage rails

Procurement Notes

Verify the specific suffix MDJT2U against official ABLIC documentation to confirm tape-and-reel packaging specifications and marking codes. Ensure compatibility with standard SOT-23-5 footprint dimensions during PCB layout. Cross-reference RoHS and REACH compliance status directly with the manufacturer's current product statements prior to final procurement authorization.

Selection Notes

Select this model when a fixed 5V output is required from inputs ranging between 0.9V and 10V. The 600kHz switching frequency allows for smaller inductors compared to lower-frequency alternatives. Confirm that the external switch current rating exceeds the controller's drive requirements. Validate thermal performance within the specified -40°C to +85°C ambient range for the target application environment.

Part Context

This component belongs to the S-8355 series of boost switching controllers designed for low-power applications. It complements related models such as the S-8356 and S-8357, which offer different switching frequencies or output configurations. The series utilizes ABLIC's proprietary CMOS technology to achieve efficient power management in small form-factor packages suitable for modern portable electronics.

Replacement Considerations

Direct substitutes include other S-8355 series variants with matching output voltages and pinouts. Verify functional equivalence regarding switching frequency and enable logic levels before substitution. Alternative models may require adjustments to external inductor and capacitor values to maintain stability and performance characteristics.