S-8358F50MC-MLJT2U

Overview

The S-8358F50MC-MLJT2U is a step-up 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 5.0V. 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 boost topologies and includes an enable control feature. It is rated for operation between -40°C and +85°C ambient temperature.

Feature Summary

• Integrated step-up DC-DC switching controller designed for boost topology applications
• Fixed 5.0V output regulation capability with high switching frequency for compact external component sizing
• Wide input voltage operating range supporting low-voltage battery-powered systems
• Built-in enable pin functionality for power management and system sleep modes

Applications

• Portable electronic devices requiring stable 5V supply from lower voltage sources
• Battery-operated equipment utilizing lithium-ion or alkaline cell inputs
• Embedded systems needing efficient voltage boosting in space-constrained designs

Procurement Notes

Verify the complete part number against official ABLIC documentation to ensure correct suffix alignment, particularly regarding the specific output voltage and package variant. Confirm RoHS compliance status through current manufacturer declarations. Cross-reference ordering information directly with authorized distributors to validate availability and standard packaging quantities before procurement planning.

Selection Notes

Select this component when a fixed 5.0V output is required from an input source ranging between 0.9V and 10V. The 600kHz switching frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Ensure the application requires a switching controller rather than a complete regulator IC, as external power switches may be needed depending on current requirements.

Part Context

This component belongs to the S-8358 series of step-up switching controllers from ABLIC. The series is characterized by high efficiency and wide input voltage ranges suitable for portable electronics. The S-8358 family typically offers various fixed output voltage options and utilizes compact SOT-23-5 packages to minimize board space consumption in modern consumer devices.

Replacement Considerations

Direct substitutes include other S-8358 series variants with different fixed output voltages, such as S-8358F33MC-MKST2U for 3.3V output. Verify compatibility of external components like inductors and diodes when substituting models within the same family.