AP7343D-22FS4-7B Equivalent & Substitute Parts

Part Overview

The AP7343D-22FS4-7B is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. This device delivers a fixed 2.2V output at 300mA with integrated enable control and over-current protection. The part is actively produced and ROHS3 compliant, making it suitable for applications requiring stable low-voltage regulation in compact surface-mount packages.

Substitute parts are identified when electrical and mechanical parameters align within the specified tolerances for this product category, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

AP7343D-22FS4-7B

Diodes IncorporatedIn Stock: 10366AP7343D-22FS4-7B Datasheet

Current PartRFQ

AP7341-22FS4-7

Diodes IncorporatedIn Stock: 814AP7341-22FS4-7 Datasheet

Parametric EquivalentRFQ

AP7341D-22FS4-7

Diodes IncorporatedIn Stock: 33209AP7341D-22FS4-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7343D-22FS4-7B are identified based on the following critical parameters:

• Fixed output voltage of 2.2V
• Output current capability of 300mA
• Maximum input voltage of 5.25V
• 4-XDFN Exposed Pad package (X2-DFN1010-4)
• Surface mount configuration
• Enable control and over-current protection features
• Operating temperature range of -40°C to 85°C
• ROHS3 compliance and active product status

The substitute parts AP7341D-22FS4-7 and AP7341-22FS4-7 meet these core electrical and mechanical requirements. Variations in dropout voltage and quiescent current do not prevent substitution when the application design accommodates these differences.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AP7343D-22FS4-7B, AP7341D-22FS4-7, and AP7341-22FS4-7—are active products from Diodes Incorporated with ROHS3 compliance and REACH unaffected status. They share identical output voltage, current rating, package configuration, and functional features.

The primary difference lies in dropout voltage performance: the AP7343D-22FS4-7B exhibits 0.34V dropout at 300mA, while both AP7341 variants show 0.65V dropout. Selection should be based on application requirements for input-to-output voltage margin and thermal dissipation constraints.

All parts are suitable for direct substitution in designs where the specified dropout voltage and quiescent current characteristics are compatible with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can AP7341D-22FS4-7 or AP7341-22FS4-7 directly replace AP7343D-22FS4-7B?

A: Yes. Both substitute parts deliver the same 2.2V fixed output at 300mA in the identical 4-XDFN package. The higher dropout voltage (0.65V vs. 0.34V) must be accommodated in the input voltage budget of your circuit design.

Q: What is the difference between AP7341D-22FS4-7 and AP7341-22FS4-7?

A: Both parts are electrically identical. The "D" designation in AP7341D-22FS4-7 indicates a specific manufacturing or date code variant. Functionally, they are equivalent for substitution purposes.

Q: Are all three parts available in the same package?

A: Yes. All three parts use the 4-XDFN Exposed Pad package (X2-DFN1010-4) with surface mount configuration, ensuring mechanical and thermal compatibility.

Q: What compliance certifications apply to these parts?

A: All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001.

Q: How does the dropout voltage difference affect circuit design?

A: The AP7343D-22FS4-7B requires a minimum input voltage of approximately 2.54V (2.2V output + 0.34V dropout). The AP7341 variants require approximately 2.85V minimum input. Verify your power supply voltage exceeds the required minimum for your selected part.

Q: What is the operating temperature range for all substitute parts?

A: All three parts operate across -40°C to 85°C, supporting industrial and commercial temperature specifications.