AP7346D-3030FS6-7 Equivalent & Substitute Parts

Part Overview

The AP7346D-3030FS6-7 is a linear voltage regulator IC from Diodes Incorporated designed for dual-output positive fixed voltage regulation. This device delivers 130mA per output channel at 3V, housed in a 6-pin X2-DFN1212-6 package with exposed pad. 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-channel 3V regulation at moderate current levels.

Substiute Parts

AP7346D-3030FS6-7

Diodes IncorporatedIn Stock: 5882AP7346D-3030FS6-7 Datasheet

Current PartRFQ

AP7345D-3030RH4-7

Diodes IncorporatedIn Stock: 5988AP7345D-3030RH4-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP7345D-3030RH4-7 qualifies as a substitute based on the following alignment criteria:

Matching parameters: Both devices are dual-output positive fixed voltage regulators from Diodes Incorporated with identical 3V output levels and 5.25V maximum input voltage. Both operate across the -40°C to 85°C temperature range and maintain ROHS3 compliance with MSL 1 rating. Both feature surface mount technology with exposed pad packages suitable for thermal management.

Substitution logic: The AP7345D-3030RH4-7 provides higher current capability (300mA per channel versus 130mA) and improved dropout performance (0.3V @ 300mA), making it a direct functional upgrade. The 8-pin X2-DFN1612-8 package is physically larger but maintains the same dual-regulator architecture and control feature set. This substitution is valid for applications where the original 130mA per-channel specification is not a hard constraint and where the larger package footprint can be accommodated on the PCB.

Parameter Comparison

Engineering Selection Recommendations

The AP7345D-3030RH4-7 is the recommended substitute for the AP7346D-3030FS6-7 based on product lifecycle status. The main part is designated Last Time Buy, indicating discontinued production and limited future availability. The substitute maintains Active product status, ensuring long-term supply chain viability and continued manufacturer support.

Both devices meet identical compliance requirements: ROHS3 certification, REACH unaffected status, and MSL 1 moisture sensitivity rating. Both carry EAR99 export classification and identical HTSUS codes, confirming regulatory equivalence.

The primary design consideration is current capacity. The substitute provides 300mA per channel compared to the original 130mA specification. This increased capability is backward-compatible for applications operating below 130mA per channel. PCB layout modifications are required due to package size increase from 6-pin to 8-pin XFDFN format.

Frequently Asked Questions (FAQ)

Q: Can the AP7345D-3030RH4-7 directly replace the AP7346D-3030FS6-7 on existing PCBs?

A: Direct PCB replacement is not possible due to package differences. The AP7346D uses a 6-pin X2-DFN1212-6 package, while the AP7345D uses an 8-pin X2-DFN1612-8 package. PCB layout redesign is required, including pad pattern modification and potential routing adjustments.

Q: What are the key electrical differences between these parts?

A: The substitute provides higher current output (300mA versus 130mA per channel) and marginally higher quiescent current (140 µA versus 100 µA). Voltage regulation characteristics, input voltage limits, temperature range, and PSRR performance remain identical. Dropout voltage specifications differ due to the higher current rating of the substitute.

Q: Are there compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance, REACH status, MSL 1 rating, and export classification. Regulatory and environmental compliance is equivalent.

Q: Why is the main part designated Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production and will not accept new orders after a specified cutoff date. This necessitates design migration to active alternatives to maintain supply chain continuity.

Q: Is the higher current rating of the substitute a disadvantage?

A: No. Higher current capability is a functional upgrade that maintains backward compatibility for applications requiring 130mA or less per channel. Applications designed for the original 130mA specification will operate within the substitute's rated parameters.

Q: What package considerations apply to this substitution?

A: The substitute uses a larger 8-pin XFDFN package compared to the 6-pin original. Both packages feature exposed pads for thermal management. Thermal performance may improve due to the larger package size, but PCB footprint and routing must be re-evaluated during design migration.