AP7353D-29FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7353D-29FS4-7 is a linear voltage regulator IC manufactured by Diodes Incorporated, classified as a Power Management PMIC. This device functions as a positive fixed output LDO (Low Dropout) regulator with a single output delivering 250mA maximum current. The part is actively produced and carries automotive-grade qualification (AEC-Q100), making it suitable for automotive and industrial applications requiring regulated 2.9V output from input supplies up to 5.5V.

Substitute parts are identified when component availability becomes constrained, supply chain disruptions occur, or inventory requirements necessitate alternative sourcing from the same manufacturer's product line. The AP7353D-29FS4-7 maintains full parametric equivalence with identified substitute parts, ensuring direct functional replacement without circuit redesign.

Substiute Parts

AP7353D-29FS4-7

Diodes IncorporatedIn Stock: 814AP7353D-29FS4-7 Datasheet

Current PartRFQ

AP7353-29FS4-7

Diodes IncorporatedIn Stock: 1169AP7353-29FS4-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7353D-29FS4-7 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

Electrical Parameters:

• Output voltage (2.9V fixed)
• Maximum input voltage (5.5V)
• Output current capability (250mA)
• Voltage dropout specification (0.153V @ 250mA)
• Quiescent current (27 µA)
• PSRR performance (90dB ~ 70dB across 100Hz ~ 10kHz)

Mechanical & Packaging Parameters:

• Package type (4-XDFN Exposed Pad)
• Supplier device package (X2-DFN1010-4 Type B)
• Mounting type (Surface Mount)

Compliance & Qualification Parameters:

• Automotive grade classification
• AEC-Q100 qualification
• RoHS3 compliance
• Operating temperature range (-40°C ~ 85°C)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. The AP7353D-29FS4-7 shares the same base product number (AP7353) with identified substitutes, confirming functional interchangeability within the same product family.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7353D-29FS4-7 and AP7353-29FS4-7 are active products from Diodes Incorporated with identical electrical specifications, mechanical packaging, and automotive-grade qualifications. Selection between these parts is based on inventory availability and supply chain considerations rather than technical performance differences.

Product Status Consideration: Both parts maintain active production status, ensuring long-term availability and continued manufacturer support. This status confirms suitability for new designs and production applications.

Compliance & Certification: Both parts carry AEC-Q100 automotive qualification and ROHS3 compliance, meeting regulatory requirements for automotive and industrial applications. The identical MSL rating (1 - Unlimited) indicates equivalent moisture handling characteristics during storage and assembly.

Packaging & Mounting: The X2-DFN1010-4 (Type B) package is identical across both parts, ensuring PCB layout compatibility and assembly process alignment. No design modifications are required when substituting between these parts.

Application Suitability: The 2.9V fixed output with 250mA capability, combined with 0.153V maximum dropout at full load, qualifies both parts for low-voltage regulated power supply applications in automotive control modules, industrial sensors, and portable instrumentation requiring stable reference voltages.

Frequently Asked Questions (FAQ)

Q: Can AP7353-29FS4-7 be used as a direct replacement for AP7353D-29FS4-7?

A: Yes. Both parts are parametrically identical across all electrical specifications, output voltage, current rating, dropout voltage, and quiescent current. The package type, mounting method, and operating temperature range are identical. Direct substitution is supported without circuit modification.

Q: Are there any differences in the X2-DFN1010-4 (Type B) package between these parts?

A: No. Both parts use the identical 4-XDFN Exposed Pad package with Type B designation. PCB footprints, solder pad layouts, and thermal characteristics are equivalent.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both AP7353D-29FS4-7 and AP7353-29FS4-7 carry automotive-grade classification and AEC-Q100 qualification. They are suitable for automotive applications requiring regulated power management.

Q: What is the significance of the "D" designation in AP7353D-29FS4-7?

A: The "D" in the part number indicates a specific variant within the AP7353 product family. However, the substitute part AP7353-29FS4-7 maintains identical electrical and mechanical specifications, confirming functional equivalence.

Q: Are moisture sensitivity levels the same for both parts?

A: Yes. Both parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or assembly. Handling and storage procedures are identical.

Q: Can these parts be used interchangeably in production?

A: Yes. Both parts are active products with identical specifications, making them suitable for interchangeable use in production environments. Selection can be based on inventory availability and supplier lead times.

Q: What is the maximum output current for both parts?

A: Both parts deliver a maximum output current of 250mA with a maximum voltage dropout of 0.153V at this load condition.

Q: Are there any temperature range differences between these parts?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C (TA), suitable for automotive and industrial temperature environments.