AOZ3053PI Equivalent & Substitute Parts

Part Overview

The AOZ3053PI is a buck switching regulator IC from Alpha & Omega Semiconductor's EZBuck™ series, designed for positive adjustable step-down voltage regulation. It delivers 5A output current with an adjustable output range from 0.8V to 14.6V, operating from a 4.5V to 18V input supply. The device is housed in an 8-SOIC package with exposed pad and features synchronous rectification at 500kHz switching frequency.

The AOZ3053PI is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and system updates.

Substiute Parts

AOZ3053PI

Alpha & Omega Semiconductor Inc.In Stock: 1076AOZ3053PI Datasheet

Current PartRFQ

AOZ6605PI

Alpha & Omega Semiconductor Inc.In Stock: 4226AOZ6605PI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOZ3053PI is based on strict alignment of the following critical parameters:

• Topology & Function: Buck (step-down) switching regulator with positive adjustable output
• Output Current Rating: 5A continuous output capability
• Input Voltage Range: 4.5V to 18V compatibility
• Package & Pinout: 8-SOIC with exposed pad, surface mount configuration
• Operating Temperature Range: -40°C to 85°C
• Regulatory Compliance: ROHS3 compliance and MSL Level 1

The AOZ6605PI qualifies as a direct substitute because it maintains identical input voltage range, output current rating, package type, mounting method, and operating temperature specifications. Both devices are from the same manufacturer's EZBuck™ series and share the same physical footprint and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AOZ6605PI is the manufacturer-recommended substitute for the obsolete AOZ3053PI. Both devices maintain identical electrical and mechanical compatibility across all critical parameters: input voltage range, output current capacity, package footprint, and operating temperature specifications.

The AOZ6605PI offers active product status with current manufacturing support and availability. Both parts carry ROHS3 compliance and MSL Level 1 ratings, ensuring equivalent environmental and regulatory standing.

The AOZ6605PI features an extended output voltage range (0.6V to 15.3V versus 0.8V to 14.6V) and operates at a higher switching frequency (650kHz versus 500kHz). These differences represent functional enhancements that do not compromise backward compatibility in applications designed for the AOZ3053PI.

Frequently Asked Questions (FAQ)

Q: Can the AOZ6605PI be used as a direct replacement for the AOZ3053PI?

A: Yes. Both devices share identical input voltage range (4.5V to 18V), output current rating (5A), package type (8-SOIC with exposed pad), and operating temperature range (-40°C to 85°C). The physical footprint and pinout are identical, enabling direct PCB substitution.

Q: What are the differences between these two parts?

A: The AOZ6605PI has a lower minimum output voltage (0.6V versus 0.8V) and higher maximum output voltage (15.3V versus 14.6V). The switching frequency is higher at 650kHz compared to 500kHz. The AOZ6605PI is an active product with current availability, while the AOZ3053PI is obsolete.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and carry MSL Level 1 ratings. No compliance or certification differences exist between the two devices.

Q: Does the higher switching frequency of the AOZ6605PI affect circuit design?

A: The switching frequency difference (650kHz versus 500kHz) may require minor adjustments to output filter component values. Consult the respective device datasheets for specific filter design guidance applicable to your application.

Q: What is the packaging difference between these parts?

A: Both parts are supplied in 8-SOIC packages with exposed pad. The AOZ3053PI is available in standard packaging, while the AOZ6605PI is supplied in Tape & Reel format. The physical package dimensions and pinout are identical.