AP7353-285FS4-7 Equivalent & Substitute Parts

Part Overview

The AP7353-285FS4-7 is a Linear Voltage Regulator IC manufactured by Diodes Incorporated, classified as a Power Management (PMIC) component. This device functions as a positive fixed output LDO (Low Dropout) regulator with a single output rated at 250mA, designed for automotive-grade applications. The part is currently in active production status with AEC-Q100 qualification, making it suitable for demanding automotive environments. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain performance specifications across production batches.

Substiute Parts

AP7353-285FS4-7

Diodes IncorporatedIn Stock: 1146AP7353-285FS4-7 Datasheet

Current PartRFQ

AP7353D-285FS4-7

Diodes IncorporatedIn Stock: 6044AP7353D-285FS4-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7353-285FS4-7 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:

• Output Configuration: Positive
• Output Type: Fixed
• Voltage - Output (Min/Fixed): 2.85V
• Voltage - Input (Max): 5.5V
• Current - Output: 250mA
• Voltage Dropout (Max): 0.155V @ 250mA
• Current - Quiescent (Iq): 27 µA
• PSRR: 90dB ~ 70dB (100Hz ~ 10kHz)
• Control Features: Current Limit, Enable
• Protection Features: Over Current, Over Temperature, Short Circuit
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 4-XDFN Exposed Pad
• Supplier Device Package: X2-DFN1010-4 (Type B)
• Grade: Automotive
• Qualification: AEC-Q100

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Variations in manufacturer, base product series designation, or inventory levels do not affect substitution eligibility when all electrical and mechanical parameters are identical.

Parameter Comparison

Engineering Selection Recommendations

The AP7353D-285FS4-7 is a direct parametric equivalent to the AP7353-285FS4-7. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications, mechanical packaging, and automotive-grade qualifications. Both devices maintain active production status and comply with ROHS3 and REACH requirements.

Selection between these parts is based on availability and supply chain considerations rather than technical performance differences. The AP7353D-285FS4-7 currently maintains higher inventory levels (5954 Pcs) compared to the AP7353-285FS4-7 (1045 Pcs), which may influence procurement decisions for high-volume applications.

Both parts are suitable for automotive applications requiring AEC-Q100 qualified linear voltage regulators with 250mA output capability, 2.85V fixed output voltage, and low quiescent current operation. The identical package designation (X2-DFN1010-4 Type B) ensures direct PCB layout compatibility without design modifications.

Frequently Asked Questions (FAQ)

Q: Can AP7353D-285FS4-7 be used as a direct replacement for AP7353-285FS4-7 without PCB modifications?

A: Yes. Both parts use the identical X2-DFN1010-4 (Type B) package with 4-XDFN Exposed Pad configuration. Pin-to-pin compatibility and footprint dimensions are identical, requiring no PCB layout changes.

Q: Are there electrical performance differences between AP7353-285FS4-7 and AP7353D-285FS4-7?

A: No. Both parts share identical electrical specifications including output voltage (2.85V fixed), maximum output current (250mA), dropout voltage (0.155V @ 250mA), quiescent current (27 µA), and PSRR characteristics (90dB ~ 70dB, 100Hz ~ 10kHz).

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both AP7353-285FS4-7 and AP7353D-285FS4-7 carry Automotive grade classification and AEC-Q100 qualification, making them suitable for automotive-grade applications within the specified operating temperature range of -40°C to 85°C.

Q: What is the difference between the part numbers AP7353-285FS4-7 and AP7353D-285FS4-7?

A: The part numbers differ only in the device designation letter (no letter versus "D"). This designation reflects internal Diodes Incorporated product line variations but does not indicate functional or performance differences. All parametric specifications remain identical.

Q: Are moisture sensitivity and RoHS compliance identical for both parts?

A: Yes. Both parts maintain MSL 1 (Unlimited) moisture sensitivity level and ROHS3 compliance status. REACH status is identical (REACH Unaffected) for both devices.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical electrical specifications, package configuration, and automotive qualifications enable direct interchangeability in existing circuit designs without performance degradation or design validation requirements.