AP7315D-33FS4-7B Equivalent & Substitute Parts

Part Overview

The AP7315D-33FS4-7B is a linear voltage regulator IC manufactured by Diodes Incorporated, designed to provide a fixed 3.3V output with 150mA current capacity. This device operates as a positive fixed output regulator in a compact 4-XDFN surface mount package with exposed pad. The part is currently in active production status with over-current protection and is suitable for applications requiring low-dropout regulation in space-constrained designs. Substitute parts are identified when electrical performance parameters, mechanical packaging, and compliance certifications remain equivalent across the product line.

Substiute Parts

AP7315D-33FS4-7B

Diodes IncorporatedIn Stock: 50379AP7315D-33FS4-7B Datasheet

Current PartRFQ

AP7315-33FS4-7B

Diodes IncorporatedIn Stock: 70235AP7315-33FS4-7B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP7315D-33FS4-7B is determined by equivalence across the following critical parameters:

• Fixed output voltage of 3.3V
• Output current rating of 150mA
• Maximum input voltage of 5.25V
• Voltage dropout specification of 0.29V @ 150mA
• Quiescent current of 60 µA
• PSRR of 75dB (1kHz)
• 4-XDFN Exposed Pad package configuration
• Operating temperature range of -40°C ~ 85°C
• Over-current protection feature
• ROHS3 compliance and MSL 1 rating

Parts meeting all these parameters are classified as direct parametric equivalents and may be substituted without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7315D-33FS4-7B and AP7315-33FS4-7B are active production devices from Diodes Incorporated with identical electrical specifications and mechanical packaging. Selection between these parts may be based on inventory availability and supply chain considerations. Both parts carry ROHS3 compliance and MSL 1 rating, confirming suitability for standard manufacturing and storage conditions. The parts are interchangeable from an engineering perspective when equivalent stock is required.

Frequently Asked Questions (FAQ)

Q: Can AP7315-33FS4-7B replace AP7315D-33FS4-7B in existing designs?

A: Yes. Both parts share identical electrical parameters, output voltage, current rating, dropout voltage, and package configuration. No circuit modifications are required for substitution.

Q: Are there any differences in the package footprint between these parts?

A: No. Both parts use the 4-XDFN Exposed Pad package with the same supplier device package designation (X2-DFN1010-4), ensuring identical PCB layout compatibility.

Q: What is the significance of the MSL 1 rating?

A: MSL 1 indicates unlimited moisture sensitivity level, meaning the component has no moisture-related storage restrictions and does not require special handling or baking procedures prior to assembly.

Q: Are both parts RoHS compliant?

A: Yes. Both AP7315D-33FS4-7B and AP7315-33FS4-7B are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.

Q: Can these parts be used interchangeably in production?

A: Yes. Identical specifications, compliance certifications, and package configurations allow these parts to be used interchangeably without design or manufacturing process changes.