S-8353A50UA-IRJT2U

Voltage Regulators - DC DC Switching Regulators Overview

The S-8353A50UA-IRJT2U is a step-up switching regulator IC from the ABLIC S-8353 series, designed for efficient voltage conversion in portable electronics. It operates with an input voltage range of 0.9 V to 10 V and provides a fixed output voltage of 5.0 V. The device delivers a maximum output current of 300 mA and features a low quiescent current of 18.7 µA. It utilizes a boost topology with a fixed switching frequency of 50 kHz. The component is housed in a compact SOT-89-3 package and supports surface-mount installation. It functions reliably within an ambient temperature range of -40 °C to +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency boost converter topology optimized for battery-powered applications
• Maintains ultra-low power consumption through minimized quiescent current during operation
• Provides stable regulated output voltage with high accuracy specifications
• Features built-in protection mechanisms including thermal shutdown and oscillation prevention

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring extended battery life
• Single-cell lithium-ion or lithium-polymer battery systems
• Handheld instruments and medical equipment
• Consumer gadgets utilizing USB charging interfaces

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number against official ABLIC documentation to ensure correct suffix alignment for package type and temperature rating. Confirm RoHS compliance status via the manufacturer's latest environmental declaration. Cross-reference the datasheet revision history to validate electrical parameters before integration into production designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5.0 V output is required from a single-cell battery source. The SOT-89-3 package offers higher current capability compared to smaller footprints. Ensure the application load does not exceed the 300 mA limit. Consider the 50 kHz switching frequency for EMI sensitivity in nearby circuitry.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the S-8353 family of switching regulators manufactured by ABLIC Inc. The series is characterized by CMOS process technology enabling low standby currents. The UA suffix indicates the SOT-89-3 package variant, distinguishing it from other pinout configurations in the same functional family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other S-8353 variants with identical 5.0 V output and SOT-89-3 packaging, such as S-8353A50UA-IQST2U, provided pin compatibility and thermal requirements are met.