UCC2583Q Equivalent & Substitute Parts

Part Overview

The UCC2583Q is a secondary-side controller IC manufactured by Texas Instruments, designed for power supply applications. It operates with a supply voltage range of 8.9V to 14V and is housed in a 20-LCC (J-Lead) package. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, redesigns, and procurement continuity.

Substiute Parts

UCC2583Q

Texas InstrumentsIn Stock: 852UCC2583Q Datasheet

Current PartRFQ

ADM6819ARJZ-REEL7

Analog Devices Inc.In Stock: 3353ADM6819ARJZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCC2583Q is determined by the following critical parameters:

• Functional Category: Power Management controller for secondary-side power supply applications
• Supply Voltage Range: 8.9V ~ 14V operational window
• Current Consumption: 3 mA supply current
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: Surface mount configuration
• Compliance Standards: ROHS3 compliance and EAR99 classification

The ADM6819ARJZ-REEL7 is identified as a manufacturer-recommended substitute. While it operates in a different voltage range (0.9V ~ 5.5V) and package format (SOT-23-6), it functions as a power supply controller within the Power Management (PMIC) category. Substitution feasibility depends on system-level voltage requirements and PCB layout constraints.

Parameter Comparison

Engineering Selection Recommendations

Selection between the UCC2583Q and ADM6819ARJZ-REEL7 must account for the following factors:

Product Status: The UCC2583Q is obsolete, while the ADM6819ARJZ-REEL7 is active. Active product status ensures ongoing availability, technical support, and manufacturing consistency.

Compliance & Certifications: Both parts maintain ROHS3 compliance and EAR99 classification, satisfying regulatory requirements for equivalent applications.

Voltage Compatibility: The UCC2583Q operates at 8.9V ~ 14V, whereas the ADM6819ARJZ-REEL7 operates at 0.9V ~ 5.5V. Direct substitution requires verification that system voltage rails align with the substitute part's specifications.

Package Transition: Migration from 20-LCC to SOT-23-6 requires PCB redesign and layout modification. The SOT-23-6 package offers reduced footprint and improved moisture sensitivity characteristics (MSL 1 vs. MSL 2).

Current Consumption: The ADM6819ARJZ-REEL7 draws 350 µA compared to the UCC2583Q's 3 mA, representing a significant reduction in quiescent current.

Frequently Asked Questions (FAQ)

Q: Can the ADM6819ARJZ-REEL7 directly replace the UCC2583Q without circuit modification?

A: Direct pin-for-pin replacement is not possible due to different package formats (20-LCC vs. SOT-23-6) and voltage specifications (8.9V ~ 14V vs. 0.9V ~ 5.5V). Circuit redesign and validation are required.

Q: What is the primary reason for seeking a substitute for the UCC2583Q?

A: The UCC2583Q is classified as obsolete. Substitution becomes necessary for new production runs, system redesigns, or when existing inventory is depleted.

Q: Are both parts compliant with modern regulatory standards?

A: Yes. Both the UCC2583Q and ADM6819ARJZ-REEL7 are ROHS3 compliant and classified as EAR99, meeting current regulatory requirements.

Q: How does the package change affect implementation?

A: The transition from 20-LCC to SOT-23-6 reduces component footprint and improves handling characteristics. However, PCB layout must be redesigned to accommodate the new package geometry and pin configuration.

Q: What are the moisture sensitivity implications?

A: The UCC2583Q carries MSL 2 (1 Year), while the ADM6819ARJZ-REEL7 carries MSL 1 (Unlimited). The substitute part offers superior moisture tolerance and extended shelf life without baking requirements.