AP7315-135FS4-7B Equivalent & Substitute Parts

Part Overview

The AP7315-135FS4-7B is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed output applications. This device delivers 150mA output current at a fixed 1.35V output voltage with a maximum dropout voltage of 0.64V at rated load. The part is actively manufactured and widely used in power management applications requiring low-voltage regulation in compact form factors. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity.

Substiute Parts

AP7315-135FS4-7B

Diodes IncorporatedIn Stock: 1195AP7315-135FS4-7B Datasheet

Current PartRFQ

AP7315D-135FS4-7B

Diodes IncorporatedIn Stock: 833AP7315D-135FS4-7B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7315-135FS4-7B are identified based on strict parametric equivalence. The substitution criteria are:

• Identical output voltage: 1.35V fixed
• Identical output current rating: 150mA
• Identical maximum input voltage: 5.25V
• Identical dropout voltage specification: 0.64V @ 150mA
• Identical quiescent current: 60 µA
• Identical PSRR: 75dB (1kHz)
• Identical package type: 4-XDFN Exposed Pad (X2-DFN1010-4)
• Identical operating temperature range: -40°C to 85°C
• Identical protection features: Over Current
• Identical compliance certifications: ROHS3, REACH Unaffected

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7315-135FS4-7B and AP7315D-135FS4-7B are active products from Diodes Incorporated with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability, packaging format (Tape & Reel), or supply chain considerations. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications. The AP7315-135FS4-7B currently maintains higher inventory levels (1153 pcs) compared to the AP7315D-135FS4-7B (795 pcs), which may influence procurement decisions based on lead time and availability requirements.

Frequently Asked Questions (FAQ)

Q: Can AP7315D-135FS4-7B be used as a direct replacement for AP7315-135FS4-7B?

A: Yes. Both parts are parametric equivalents with identical electrical characteristics, output voltage, current rating, dropout voltage, quiescent current, PSRR, operating temperature range, and package specifications. They are interchangeable in circuit design and layout.

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

A: No. Both parts use the identical 4-XDFN Exposed Pad package (X2-DFN1010-4) with Surface Mount mounting type. PCB footprints and assembly processes are identical.

Q: What is the significance of the "D" designation in AP7315D-135FS4-7B?

A: The "D" designation indicates a variant within the AP7315 base product family. However, all electrical and mechanical parameters remain identical to the AP7315-135FS4-7B, making them functionally equivalent for substitution purposes.

Q: Are both parts RoHS compliant?

A: Yes. Both AP7315-135FS4-7B and AP7315D-135FS4-7B are ROHS3 Compliant and REACH Unaffected, meeting environmental and regulatory standards for electronic components.

Q: What protection features are included in these regulators?

A: Both parts include Over Current protection, which safeguards the device and downstream circuitry against excessive current conditions.

Q: Can these parts operate across the full industrial temperature range?

A: Yes. Both parts are rated for operation from -40°C to 85°C, supporting industrial and extended commercial temperature applications.