AP7341-31FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7341-31FS4-7 is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. It delivers a fixed 3.1V output at 300mA with a maximum input voltage of 5.25V and operates across the industrial temperature range of -40°C to 85°C. The device features enable control and over-current protection, making it suitable for applications requiring regulated low-voltage power delivery in compact surface-mount form factors. As an active product with full RoHS3 compliance and unlimited moisture sensitivity rating, substitute parts may be required due to inventory constraints, packaging preferences, or specific performance optimization needs within the allowed electrical and mechanical parameter ranges.

Substiute Parts

AP7341-31FS4-7

Diodes IncorporatedIn Stock: 63101AP7341-31FS4-7 Datasheet

Current PartRFQ

AP7341-31FS4-7

Diodes IncorporatedIn Stock: 63101AP7341-31FS4-7 Datasheet

Parametric EquivalentRFQ

AP7341D-31FS4-7

Diodes IncorporatedIn Stock: 808AP7341D-31FS4-7 Datasheet

Parametric EquivalentRFQ

AP7343-31FS4-7B

Diodes IncorporatedIn Stock: 714AP7343-31FS4-7B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AP7341-31FS4-7 is determined by the following critical parameters that must remain constant across all equivalent parts:

• Output voltage: 3.1V fixed
• Maximum output current: 300mA
• Maximum input voltage: 5.25V
• Package type: 4-XDFN Exposed Pad (X2-DFN1010-4)
• Mounting type: Surface Mount
• Output configuration: Positive, single regulator
• Control features: Enable function
• Protection: Over-current protection
• Operating temperature range: -40°C to 85°C
• Compliance: RoHS3, REACH Unaffected, EAR99

Variations in dropout voltage, quiescent current, PSRR, packaging format (bulk vs. tape & reel), and base product number are permitted within the substitute group, as these do not affect core functional compatibility in the target application circuit.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AP7341-31FS4-7, AP7341D-31FS4-7, and AP7343-31FS4-7B—are active products with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. Selection between these equivalents should be based on:

AP7341-31FS4-7: Primary choice for high-volume applications. Bulk packaging format. Lowest dropout voltage specification at 0.27V @ 150mA. Highest inventory availability (63,080 pcs).

AP7341D-31FS4-7: Tape & reel packaging suitable for automated assembly lines. Identical quiescent current and PSRR to the primary part. Higher dropout voltage at 0.65V @ 300mA. Limited inventory (789 pcs).

AP7343-31FS4-7B: Tape & reel packaging. Lowest dropout voltage at full load (0.29V @ 300mA). Slightly elevated quiescent current (60 µA vs. 50 µA). Lowest inventory (699 pcs). Different base product number (AP7343 vs. AP7341) indicates minor design revision.

All parts maintain identical output voltage, current rating, input voltage limits, temperature range, and protection features. Packaging format and dropout voltage performance are the primary differentiators for application-specific selection.

Frequently Asked Questions (FAQ)

Q: Can AP7341D-31FS4-7 and AP7343-31FS4-7B be used interchangeably with AP7341-31FS4-7 in the same circuit?

A: Yes, within the constraints of your application's dropout voltage and quiescent current requirements. All three parts deliver identical 3.1V output at 300mA with the same input voltage limits and operating temperature range. Verify that your power supply headroom accommodates the dropout voltage of your selected substitute, particularly AP7341D-31FS4-7 which specifies 0.65V @ 300mA.

Q: What is the difference between bulk and tape & reel packaging?

A: AP7341-31FS4-7 is supplied in bulk packaging, suitable for manual handling and small-quantity applications. AP7341D-31FS4-7 and AP7343-31FS4-7B are supplied in tape & reel format, optimized for automated pick-and-place assembly equipment. Electrical performance is identical; packaging choice depends on manufacturing process requirements.

Q: Why does AP7343-31FS4-7B have a different base product number?

A: The AP7343 base number indicates a design revision from the AP7341 series. Despite this designation change, the AP7343-31FS4-7B maintains full electrical and mechanical compatibility with AP7341-31FS4-7, including identical output voltage, current rating, and package form factor. The revision reflects internal design optimization, particularly in dropout voltage performance at full load.

Q: Are all three parts RoHS3 compliant?

A: Yes. AP7341-31FS4-7, AP7341D-31FS4-7, and AP7343-31FS4-7B are all ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), meeting current environmental and regulatory standards for unrestricted global procurement and deployment.

Q: Which part should I select for a high-temperature application?

A: All three parts operate across -40°C to 85°C. Selection should be based on dropout voltage performance and packaging format rather than temperature capability, as the operating range is identical across all substitutes.