AOZ1050PI_6

Overview

The AOZ1050PI_6 is a high-efficiency, easy-to-use 2 A synchronous buck regulator from the EZBuck series by Alpha & Omega Semiconductor Inc. It operates within an input voltage range of 4.5 V to 18 V and delivers up to 2 A of continuous output current with an adjustable output voltage down to 0.8 V. The device features internal high-side and low-side switches, cycle-by-cycle current limit, pre-bias start-up, short-circuit protection, and thermal shutdown. It operates at a fixed PWM frequency of 500 kHz and is housed in an exposed pad SO-8 package.

Feature Summary

• Synchronous buck topology with integrated high-side and low-side power switches for high efficiency
• Adjustable output voltage capability starting from 0.8 V
• Comprehensive protection suite including cycle-by-cycle current limit, short-circuit protection, and thermal shutdown

Applications

• Point-of-load DC/DC converters
• LCD TV systems
• Set-top boxes
• DVD and Blu-ray players/recorders
• Cable modems

Procurement Notes

Verify the exact suffix designation against official manufacturer documentation, as suffixes can indicate specific tape-and-reel quantities or packaging variations. Confirm component availability status, as this part number may be subject to discontinuation notices. Ensure compatibility with required operating temperature ranges and regulatory compliance standards such as RoHS before finalizing procurement plans.

Selection Notes

Select this component for applications requiring a compact, efficient step-down solution with an input voltage up to 18 V. It is suitable for designs needing up to 2 A output current with adjustable voltage regulation. Consider the 500 kHz switching frequency for balancing component size and efficiency. Verify that the external component selection supports the desired output voltage and load requirements.

Part Context

The AOZ1050PI_6 belongs to the EZBuck family of synchronous buck regulators, which are designed for simplicity and high performance. This series typically includes variants with different current ratings, such as the AOZ1051PI (3 A) and AOZ1052PI (4 A). These regulators are commonly used in consumer electronics and industrial equipment where space constraints and efficiency are critical design factors.

Replacement Considerations

Direct replacements within the same family include the AOZ1051PI (3 A) and AOZ1052PI (4 A), provided higher current capacity is acceptable. Other compatible alternatives may exist from different manufacturers offering similar pinouts and electrical characteristics, but verification of pin compatibility and thermal performance is essential.