S-8340A33AFT-T2-G

Overview

The S-8340A33AFT-T2-G is a synchronous step-down switching regulator manufactured by ABLIC Inc. It integrates high-side and low-side N-channel MOSFETs to deliver efficient DC-DC conversion with an output voltage of 3.3V. The device operates within an input voltage range of 2.7V to 5.5V, supporting a maximum output current of 1.5A. Key electrical parameters include a switching frequency of 1MHz and quiescent current of 60µA. It features overcurrent protection, thermal shutdown, and soft-start functionality. The component is housed in a compact TSSOP-B8 package suitable for space-constrained designs.

Feature Summary

• Integrates high-side and low-side N-channel MOSFETs for high-efficiency power conversion
• Provides fixed 3.3V output with 1.5A maximum load capability
• Includes comprehensive protection mechanisms such as overcurrent limiting and thermal shutdown

Applications

• Portable electronic devices requiring stable 3.3V logic supply
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded control units in consumer electronics

Procurement Notes

Verify the specific suffix 'T2-G' against the manufacturer's official documentation to confirm tape-and-reel packaging and RoHS compliance status. Confirm that the 3.3V fixed output variant matches the system requirements, as other voltage options exist within the S-8340 series. Ensure the TSSOP-B8 footprint aligns with the PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when a fixed 3.3V output is required from a 2.7V to 5.5V input source. The integrated MOSFET design reduces external component count compared to non-integrated controllers. Consider the 1MHz switching frequency for balancing efficiency and passive component size. Verify that the 1.5A current rating meets the peak load demands of the target application circuit.

Part Context

This part belongs to the S-8340 series of synchronous buck converters from ABLIC Inc. The series is designed for applications requiring high efficiency and minimal external components. The S-8340 family offers various fixed output voltages and current ratings, with the S-8340A33AFT specifically providing a regulated 3.3V output in a small surface-mount package.

Replacement Considerations

Check for direct pin-compatible alternatives within the S-8340 series offering different output voltages if system requirements change. Verify compatibility with existing PCB footprints when considering cross-brand synchronous buck regulators.