RT8071CGQW Equivalent & Substitute Parts

Part Overview

The RT8071CGQW is a buck switching regulator IC from Richtek USA Inc., designed for positive adjustable step-down voltage regulation with a 3A output capacity. This device operates across an input voltage range of 2.7V to 5.5V and provides adjustable output from 0.6V to 5.5V, making it suitable for various power management applications requiring compact form factors.

The RT8071CGQW carries a "Not For New Designs" product status, indicating it has been superseded or discontinued for new development. Identifying equivalent substitute parts is essential for ongoing production support, maintenance applications, and legacy system repairs where this component remains in use.

Substiute Parts

RT8071CGQW

Richtek USA Inc.In Stock: 16821RT8071CGQW Datasheet

Current PartRFQ

RT8068AZQW

Richtek USA Inc.In Stock: 35233RT8068AZQW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT8071CGQW are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria include:

• Identical buck topology with positive adjustable output configuration
• Matching input voltage range (2.7V to 5.5V minimum and maximum)
• Matching output voltage range (0.6V to 5.5V minimum and maximum)
• Identical output current rating (3A)
• Identical switching frequency (1MHz)
• Presence of synchronous rectifier functionality
• Compatible package form factor (10-WFDFN Exposed Pad)
• Surface mount mounting type
• Equivalent or superior RoHS and environmental compliance

The RT8068AZQW meets all these criteria and qualifies as a direct electrical and mechanical substitute for the RT8071CGQW.

Parameter Comparison

Engineering Selection Recommendations

The RT8068AZQW is the qualified substitute for the RT8071CGQW based on complete electrical and mechanical parameter equivalence. Both devices share identical functional specifications across all critical parameters: buck topology, adjustable positive output, 3A current capacity, 1MHz switching frequency, and 10-WFDFN package form factor.

The RT8068AZQW holds Active product status, ensuring ongoing manufacturer support and availability, whereas the RT8071CGQW is designated "Not For New Designs." This status difference makes the RT8068AZQW the appropriate choice for production continuity and long-term supply chain stability.

Both parts maintain ROHS3 compliance and identical MSL ratings, confirming environmental and handling compatibility. The RT8068AZQW is available in Cut Tape and Digi-Reel packaging options, providing flexibility for different procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can the RT8068AZQW directly replace the RT8071CGQW in existing designs?

A: Yes. The RT8068AZQW provides complete electrical and mechanical equivalence. Input voltage range, output voltage range, output current, switching frequency, package form factor, and pin configuration are identical. No circuit modifications are required.

Q: What is the difference in operating temperature ranges?

A: The RT8071CGQW specifies -40°C to 85°C ambient temperature (TA), while the RT8068AZQW specifies -10°C to 105°C junction temperature (TJ). The RT8068AZQW supports a wider upper temperature limit, making it suitable for higher thermal environments.

Q: Are there packaging differences between these parts?

A: Both parts use the 10-WFDFN Exposed Pad surface mount package. The RT8071CGQW is supplied in Tape & Reel format, while the RT8068AZQW is available in Cut Tape and Digi-Reel formats. The physical package dimensions and pin assignments remain identical.

Q: Why is the RT8071CGQW marked "Not For New Designs"?

A: This designation indicates the part has been superseded. The RT8068AZQW represents the active equivalent and is the recommended choice for new development and ongoing production.

Q: Are compliance certifications equivalent between these parts?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 3 (168 Hours). Compliance documentation is equivalent for both devices.