AP7341-36FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7341-36FS4-7 is a linear voltage regulator IC from Diodes Incorporated designed for power management applications. This positive fixed output regulator delivers 300mA at 3.6V with a maximum dropout voltage of 0.27V at 150mA. The device is housed in a 4-XDFN package with exposed pad and is actively produced. Alternative models may be required due to inventory constraints, design revisions, or specific application requirements where dropout voltage or quiescent current characteristics differ.

Substiute Parts

AP7341-36FS4-7

Diodes IncorporatedIn Stock: 1259AP7341-36FS4-7 Datasheet

Current PartRFQ

AP7343D-36FS4-7B

Diodes IncorporatedIn Stock: 1163AP7343D-36FS4-7B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP7343D-36FS4-7B qualifies as a parametric equivalent based on the following criteria:

Output voltage specification matches at 3.6V fixed output. Maximum output current is identical at 300mA. Input voltage maximum rating is equivalent at 5.25V. Package and case type are identical: 4-XDFN Exposed Pad with X2-DFN1010-4 supplier device package. Operating temperature range is identical: -40°C ~ 85°C. Both devices feature Enable control and Over Current protection. RoHS3 compliance and MSL 1 rating are matched. Both are actively produced by Diodes Incorporated.

Substitution is valid where dropout voltage and quiescent current variations are acceptable within the application design margins.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7341-36FS4-7 and AP7343D-36FS4-7B are active products with ROHS3 compliance and identical regulatory status. Selection between these devices depends on application-specific tolerance for the measured differences: the AP7343D-36FS4-7B exhibits a slightly higher dropout voltage of 0.29V at full 300mA load compared to 0.27V at 150mA for the AP7341-36FS4-7, and a marginally higher quiescent current of 60 µA versus 50 µA. Both devices maintain identical PSRR performance and protection characteristics. The identical package footprint (X2-DFN1010-4) permits direct PCB substitution without layout modification.

Frequently Asked Questions (FAQ)

Q: Can AP7343D-36FS4-7B replace AP7341-36FS4-7 in existing designs?

A: Yes, direct substitution is possible. Both devices share identical output voltage, current rating, input voltage maximum, package type, and operating temperature range. The AP7343D-36FS4-7B has marginally higher dropout voltage (0.29V @ 300mA vs. 0.27V @ 150mA) and quiescent current (60 µA vs. 50 µA). Verify these differences are acceptable for your specific power budget and input voltage margin requirements.

Q: Are there package compatibility concerns?

A: No. Both parts use the 4-XDFN Exposed Pad package with identical X2-DFN1010-4 supplier device package designation. PCB footprints are identical, permitting direct component swap without layout changes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both AP7341-36FS4-7 and AP7343D-36FS4-7B are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: What is the primary difference between these parts?

A: The AP7343D-36FS4-7B is specified with dropout voltage measured at full 300mA output current (0.29V), whereas the AP7341-36FS4-7 specifies dropout at 150mA (0.27V). Quiescent current is 10 µA higher in the substitute. These differences are minor and acceptable in most applications where input voltage headroom is adequate.

Q: Can I use either part interchangeably in production?

A: Yes, provided your design margins accommodate the dropout voltage and quiescent current variations. Both parts are actively produced and carry identical certifications. Confirm with your design validation that the 0.02V additional dropout and 10 µA additional quiescent current do not impact system performance.