AP7346D-3612FS6-7 Equivalent & Substitute Parts

Part Overview

The AP7346D-3612FS6-7 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed dual-output applications. This device integrates two independent 130mA regulators with fixed output voltages of 1.2V and 3.6V in a compact 6-pin X2-DFN1212-6 package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring dual-output linear regulation.

Substiute Parts

AP7346D-3612FS6-7

Diodes IncorporatedIn Stock: 15222AP7346D-3612FS6-7 Datasheet

Current PartRFQ

AP7345D-3612RH4-7

Diodes IncorporatedIn Stock: 1030AP7345D-3612RH4-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP7346D-3612FS6-7 is determined by the following critical parameters:

• Dual-output positive fixed voltage regulator architecture
• Output voltage levels: 1.2V and 3.6V
• Minimum output current capability: 130mA per regulator
• Maximum input voltage: 5.25V
• Operating temperature range: -40°C ~ 85°C
• Surface mount packaging with exposed pad
• RoHS3 compliance and REACH unaffected status

The AP7345D-3612RH4-7 qualifies as a substitute based on matching output voltage configuration, input voltage specification, operating temperature range, and regulatory compliance. This part provides enhanced current capability (300mA per regulator) and improved dropout voltage performance, making it suitable for applications where the AP7346D-3612FS6-7 is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The AP7345D-3612RH4-7 is the designated manufacturer substitute for the AP7346D-3612FS6-7. Selection of this substitute is supported by the following factors:

• Both parts maintain identical output voltage specifications (1.2V and 3.6V)
• Both parts operate within the same input voltage range (5.25V maximum)
• Both parts maintain identical operating temperature range (-40°C ~ 85°C)
• Both parts are ROHS3 compliant and REACH unaffected
• The AP7345D-3612RH4-7 is in Active product status, ensuring continued availability
• The AP7345D-3612RH4-7 provides higher output current capability (300mA vs. 130mA), offering design margin for applications requiring the original part

The primary design consideration is the package change from 6-pin to 8-pin X2-DFN format, which requires PCB layout modification. The increased quiescent current (140 µA vs. 100 µA) and enhanced protection features (short circuit vs. over current) represent functional improvements suitable for production designs.

Frequently Asked Questions (FAQ)

Q: Can the AP7345D-3612RH4-7 directly replace the AP7346D-3612FS6-7 without circuit modification?

A: The AP7345D-3612RH4-7 maintains electrical compatibility for output voltage and input voltage specifications. However, the package change from 6-pin X2-DFN1212-6 to 8-pin X2-DFN1612-8 requires PCB layout redesign. Pin assignments must be verified against the respective datasheets before implementation.

Q: What are the key differences in current capability between these parts?

A: The AP7346D-3612FS6-7 provides 130mA per regulator output, while the AP7345D-3612RH4-7 provides 300mA per regulator output. Applications requiring output currents exceeding 130mA benefit from the increased capability of the substitute part.

Q: Are there compliance or certification differences between these parts?

A: Both parts maintain identical RoHS3 compliance and REACH unaffected status. No compliance barriers exist for substitution.

Q: Why is the AP7346D-3612FS6-7 in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer has discontinued production. The AP7345D-3612RH4-7, maintained in Active status, represents the current production alternative for dual-output linear regulation applications.

Q: How do the protection features differ?

A: The AP7346D-3612FS6-7 includes over current protection, while the AP7345D-3612RH4-7 includes short circuit protection. The AP7345D-3612RH4-7 also adds current limit control features not present in the original part.