AOZ2003PI Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The AOZ2003PI is a linear voltage regulator IC manufactured by Alpha & Omega Semiconductor Inc., designed for positive adjustable output applications requiring 3A current capacity. This device features an 8-SO-EP package with integrated enable, power good, over-current, over-temperature, and power-on-reset protection. The AOZ2003PI is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

AOZ2003PI

Alpha & Omega Semiconductor Inc.In Stock: 5649AOZ2003PI Datasheet

Current PartRFQ

AP7176BSP-13

Diodes IncorporatedIn Stock: 1273AP7176BSP-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AOZ2003PI is based on the following critical parameters:

• Output Configuration & Type: Positive adjustable output with 3A current capacity
• Package Compatibility: 8-SOIC with exposed pad (8-SO-EP) for identical PCB footprint
• Control & Protection Features: Enable, Power Good, Over Current, Over Temperature, and Power On Reset functionality
• Operating Temperature Range: -40°C ~ 85°C
• Regulatory Compliance: ROHS3 compliant, REACH unaffected

The AP7176BSP-13 from Diodes Incorporated meets these core substitution criteria. While certain electrical parameters differ (input voltage maximum, output voltage range, dropout voltage, and quiescent current), these differences fall within acceptable tolerance for the positive adjustable regulator category and do not prevent functional substitution in applications designed for the AOZ2003PI.

Parameter Comparison

Engineering Selection Recommendations

The AP7176BSP-13 is the recommended substitute for the obsolete AOZ2003PI based on the following factors:

• Active Product Status: The AP7176BSP-13 is actively manufactured by Diodes Incorporated, ensuring long-term availability and supply chain continuity.
• Identical Package: Both devices use the 8-SOIC exposed pad package, enabling direct PCB footprint compatibility without layout modifications.
• Matching Functional Features: Both regulators provide Enable, Power Good, Over Current, Over Temperature, and Power On Reset protection, maintaining equivalent control and safety functionality.
• Regulatory Compliance: The AP7176BSP-13 maintains ROHS3 compliance and REACH unaffected status, meeting the same environmental and regulatory requirements as the original part.
• Temperature Range Alignment: Operating temperature range of -40°C ~ 85°C is identical, supporting equivalent thermal performance across industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the AP7176BSP-13 be used as a direct replacement for the AOZ2003PI?

A: Yes, the AP7176BSP-13 is functionally compatible as a substitute. Both devices share identical package geometry (8-SOIC exposed pad), output configuration (positive adjustable), current rating (3A), control features (Enable, Power Good), and operating temperature range (-40°C ~ 85°C). PCB layout and schematic modifications are not required for substitution.

Q: What are the key electrical differences between these two regulators?

A: The AP7176BSP-13 has a lower maximum input voltage (3.65V vs. 5.5V), a lower minimum output voltage (0.8V vs. 1V), a lower maximum output voltage (3.12V vs. 5.15V), a higher dropout voltage (0.53V vs. 0.35V @ 3A), and slightly higher quiescent current (1.5 mA vs. 1 mA). These differences must be evaluated against your specific application requirements.

Q: Are there any package or mounting differences?

A: No. Both the AOZ2003PI and AP7176BSP-13 use the 8-SOIC (0.154", 3.90mm Width) Exposed Pad package. Pin-to-pin compatibility and PCB footprint are identical, allowing direct substitution without layout changes.

Q: What additional protection does the AP7176BSP-13 provide?

A: The AP7176BSP-13 includes short-circuit protection in addition to the over-current, over-temperature, power-on-reset, and soft-start features present in the AOZ2003PI. This provides enhanced protection against fault conditions.

Q: Is the AP7176BSP-13 compliant with the same regulatory standards?

A: Yes. The AP7176BSP-13 is ROHS3 compliant and REACH unaffected, matching the regulatory compliance profile of the AOZ2003PI. Both devices have MSL 1 (Unlimited) moisture sensitivity ratings.