S-8357N53MC-O3MT2U

Overview

The S-8357N53MC-O3MT2U is a positive output step-up DC-DC switching controller IC manufactured by ABLIC Inc. It operates within an input voltage range of 0.9 V to 10 V and provides a fixed output voltage of 5.3 V. The device supports a maximum output current of 300 mA and features a typical quiescent current of 25.9 µA. It utilizes a PWM control method with a switching frequency of 300 kHz. The component is housed in a compact SOT-23-5 package and is rated for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-efficiency boost converter topology for voltage step-up applications
• Features low standby current consumption to extend battery life in portable devices
• Includes enable control functionality for power management optimization

Applications

• Battery-powered portable electronic devices requiring voltage boosting
• General-purpose step-up power supply circuits
• Embedded systems utilizing single-cell lithium-ion or alkaline batteries

Procurement Notes

Verify the specific suffix O3MT2U against the official ABLIC datasheet to confirm the exact output voltage tolerance and pin configuration. Ensure compatibility with the target PCB footprint, specifically the SOT-23-5 package dimensions. Confirm that the required output current does not exceed the device's thermal limits under the intended operating conditions.

Selection Notes

Select this component when a fixed 5.3 V output is required from a variable input source between 0.9 V and 10 V. It is suitable for designs prioritizing low quiescent current over adjustable output flexibility. Compare against other S-8357 variants if different output voltages or packaging options are needed for the specific application constraints.

Part Context

This part belongs to the S-8357 series of switching controllers from ABLIC Inc., designed for efficient power management in small form factors. The series offers various fixed output voltage options to suit different system requirements while maintaining a consistent interface and package style for design interchangeability within the product line.

Replacement Considerations

Direct substitutes include other S-8357 series parts with identical SOT-23-5 packaging but different output voltage suffixes, such as S-8357F50MC-MHJT2U for a 5.0 V output. Verify electrical compatibility before substitution.