S-8533A25AFT-TB-U

Overview

The S-8533A25AFT-TB-U is a synchronous PWM step-down switching controller manufactured by ABLIC Inc. It operates within an input voltage range of 2.7 V to 6.0 V and delivers a fixed output voltage of 2.5 V. The device supports a maximum output current of 1.5 A and features a shutdown function for power management. It is housed in a TSSOP-8 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Synchronous rectification architecture for enhanced efficiency
• Integrated shutdown control for power optimization
• Fixed 2.5 V output voltage configuration

Applications

• Portable electronic devices requiring efficient power conversion
• Battery-powered systems with low voltage inputs
• Embedded circuits needing stable 2.5 V regulation

Procurement Notes

Verify the specific suffix 'TB-U' against official ABLIC documentation to confirm package type and tape-and-reel specifications. Confirm availability status as this series may be subject to discontinuation notices. Ensure compatibility with existing PCB footprints for the TSSOP-8 package before procurement.

Selection Notes

Select this component when a fixed 2.5 V output is required from a 2.7 V to 6.0 V input source. The synchronous design suits applications prioritizing efficiency over cost. Verify that the 1.5 A current capability meets load requirements and that the operating temperature range aligns with environmental conditions.

Part Context

This part belongs to the S-8533 series of switching controllers, designed for compact power solutions. It complements ABLIC's portfolio of PMICs by providing a controlled buck topology suitable for space-constrained designs. The series emphasizes reliability and thermal performance in small packages.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Consult ABLIC technical support for direct replacements or evaluate generic synchronous buck controllers with matching voltage and current ratings.