AP7341-285FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7341-285FS4-7 is a linear voltage regulator IC from Diodes Incorporated designed for power management applications. This positive fixed output regulator delivers 300mA at 2.85V 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 equivalent parts may be required due to inventory constraints, supply chain considerations, or specific application requirements where dropout voltage or quiescent current specifications differ.

Substiute Parts

AP7341-285FS4-7

Diodes IncorporatedIn Stock: 10448AP7341-285FS4-7 Datasheet

Current PartRFQ

AP7343-285FS4-7B

Diodes IncorporatedIn Stock: 1095AP7343-285FS4-7B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP7343-285FS4-7B qualifies as a parametric equivalent based on the following criteria:

Matching Parameters:

• Fixed output voltage: 2.85V
• Output current rating: 300mA
• Maximum input voltage: 5.25V
• Package type: 4-XDFN Exposed Pad (X2-DFN1010-4)
• Operating temperature range: -40°C to 85°C
• Manufacturer: Diodes Incorporated
• Control features: Enable function
• Protection: Over Current protection
• Compliance: ROHS3, REACH Unaffected

Allowed Parameter Variations:

• Dropout voltage: 0.3V @ 300mA (vs. 0.27V @ 150mA in main part)
• Quiescent current: 60 µA (vs. 50 µA in main part)

These variations remain within acceptable tolerances for linear regulator substitution in applications where the specified output voltage and current capacity are the primary design constraints.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7341-285FS4-7 and AP7343-285FS4-7B are active products from Diodes Incorporated with identical ROHS3 compliance and REACH unaffected status. Selection between these parts depends on application-specific requirements:

The AP7341-285FS4-7 is suitable for applications where lower dropout voltage at moderate current levels (0.27V @ 150mA) is critical for power efficiency or where quiescent current must be minimized (50 µA).

The AP7343-285FS4-7B is suitable for applications where the specified dropout voltage at full output current (0.3V @ 300mA) is acceptable and inventory availability is a consideration. The slightly higher quiescent current (60 µA) remains negligible in most power management applications.

Both devices maintain identical output voltage regulation, current capacity, input voltage rating, and thermal operating range, ensuring functional compatibility in standard linear regulator applications.

Frequently Asked Questions (FAQ)

Q: Can AP7343-285FS4-7B replace AP7341-285FS4-7 in my design?

A: Yes, provided your application can tolerate the specified dropout voltage of 0.3V at 300mA output current and quiescent current of 60 µA. Both devices deliver identical 2.85V fixed output at 300mA with the same package footprint and thermal range.

Q: What is the difference in dropout voltage between these parts?

A: The AP7341-285FS4-7 specifies 0.27V dropout at 150mA, while the AP7343-285FS4-7B specifies 0.3V dropout at 300mA. The dropout voltage difference is 0.03V. Applications operating at full 300mA output current should account for the AP7343 specification.

Q: Are the packages identical?

A: Yes. Both parts use the 4-XDFN Exposed Pad package (X2-DFN1010-4) with identical pinout and footprint, enabling direct PCB substitution without layout modifications.

Q: Do both parts meet RoHS and REACH requirements?

A: Yes. Both the AP7341-285FS4-7 and AP7343-285FS4-7B are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the quiescent current difference?

A: The AP7341-285FS4-7 draws 50 µA quiescent current, while the AP7343-285FS4-7B draws 60 µA. This 10 µA difference is typically negligible in applications where the regulator supplies 300mA output current.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Identical package, pinout, output voltage, and current rating enable direct substitution. Verify that your application's power budget and thermal design accommodate the specified dropout voltage and quiescent current of the selected part.