AP7315-33FS4-7B Equivalent & Substitute Parts

Part Overview

The AP7315-33FS4-7B is a linear voltage regulator IC manufactured by Diodes Incorporated, designed for positive fixed 3.3V output applications. This Surface Mount device delivers 150mA output current with a maximum dropout voltage of 0.29V at rated load. The part is currently in active production status with extensive inventory availability (70,200 pcs in stock). Finding equivalent substitute parts is necessary to ensure supply chain flexibility, manage lead times, and maintain design continuity across manufacturing batches.

Substiute Parts

AP7315-33FS4-7B

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

Current PartRFQ

AP7315D-33FS4-7B

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AP7315-33FS4-7B is determined by strict equivalence across the following critical parameters:

• Output voltage configuration: Positive fixed 3.3V output
• Output current rating: 150mA
• Maximum input voltage: 5.25V
• Dropout voltage specification: 0.29V @ 150mA
• Package type: 4-XDFN Exposed Pad (X2-DFN1010-4)
• Mounting configuration: Surface Mount
• Operating temperature range: -40°C ~ 85°C
• Protection features: Over Current protection
• Regulatory compliance: ROHS3 Compliant

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. The AP7315D-33FS4-7B satisfies all substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7315-33FS4-7B and AP7315D-33FS4-7B are active production parts manufactured by Diodes Incorporated with identical electrical and mechanical specifications. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. Selection between these parts should be based on supply chain availability and lead time requirements. The AP7315-33FS4-7B maintains higher inventory levels (70,200 pcs), while the AP7315D-33FS4-7B provides an alternative source with adequate stock (50,300 pcs). Both parts are suitable for direct substitution in 3.3V linear regulator applications requiring 150mA output current in Surface Mount 4-XDFN packaging.

Frequently Asked Questions (FAQ)

Q: Can AP7315D-33FS4-7B be used as a direct replacement for AP7315-33FS4-7B?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output voltage, current rating, dropout voltage, package type, and operating temperature range. No circuit modifications are required.

Q: Are there any differences in package dimensions or PCB footprint between these parts?

A: No. Both parts use the 4-XDFN Exposed Pad package (X2-DFN1010-4) with identical mechanical specifications and PCB footprint requirements.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both AP7315-33FS4-7B and AP7315D-33FS4-7B are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the basis for substitution between these two part numbers?

A: Substitution is based on identical electrical parameters: 3.3V fixed output, 150mA output current, 5.25V maximum input voltage, 0.29V dropout voltage at rated load, identical quiescent current, PSRR specification, protection features, and operating temperature range.

Q: Are there any performance differences in thermal characteristics or reliability between these parts?

A: No performance differences are specified in the provided technical parameters. Both parts are manufactured by Diodes Incorporated with identical specifications for quiescent current, supply current, and thermal operating range.