AOZ1037PI#A

Overview

The AOZ1037PI is a high-efficiency, simple-to-use 5A synchronous buck regulator from the EZBuck series. It operates from a 4.5V to 18V input voltage range and provides up to 5A of continuous output current with an adjustable output voltage down to 0.8V. The device features fixed 500kHz PWM operation, internal soft start, and active high power good state. It includes protection mechanisms such as cycle-by-cycle current limit, short-circuit protection, and thermal shutdown. The component is housed in an exposed pad SO-8 package and is rated for ambient temperatures between -40°C and +85°C.

Feature Summary

• Synchronous rectification with low internal resistance switches for high efficiency
• Integrated protection including thermal shutdown and cycle-by-cycle current limit
• Fixed 500kHz switching frequency simplifies external component selection

Applications

• Point of load DC/DC conversion
• LCD TVs
• Set top boxes
• DVD / Blu-ray players/recorders
• Cable modems

Procurement Notes

Verify the specific suffix 'PI' against the manufacturer's official datasheet to confirm pinout and package dimensions. Confirm RoHS compliance status and lead time requirements directly with authorized distributors or Alpha & Omega Semiconductor Inc., as availability may vary by region and production batch.

Selection Notes

Select this component for applications requiring a compact 5A synchronous buck solution with a wide input voltage range. Ensure the design accommodates the 500kHz switching frequency and that the thermal management strategy supports the exposed pad SO-8 package for adequate heat dissipation within the specified operating temperature range.

Part Context

The AOZ1037PI belongs to the EZBuck family of synchronous buck regulators designed by Alpha & Omega Semiconductor Inc. This series targets cost-sensitive, space-constrained applications in consumer electronics and telecommunications. The PI suffix denotes the specific 8-pin SOIC package with an exposed thermal pad variant within the AOZ1037 product line.

Replacement Considerations

AOZ6689CI is listed as a similar replacement part by the manufacturer.