AP7351D-12FS4-7B Equivalent & Substitute Parts

Part Overview

The AP7351D-12FS4-7B is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. It delivers a fixed positive 1.2V output at 150mA with a maximum dropout voltage of 0.9V at rated current. The device is housed in a 4-XDFN Exposed Pad surface mount package and is currently in active production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set.

Substiute Parts

AP7351D-12FS4-7B

Diodes IncorporatedIn Stock: 1146AP7351D-12FS4-7B Datasheet

Current PartRFQ

AP7354-12FS4-7

Diodes IncorporatedIn Stock: 874AP7354-12FS4-7 Datasheet

Parametric EquivalentRFQ

AP7354D-12FS4-7

Diodes IncorporatedIn Stock: 965AP7354D-12FS4-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7351D-12FS4-7B are qualified based on the following critical parameters:

• Output voltage configuration: Positive fixed 1.2V
• Output current capability: 150mA
• Maximum input voltage: 5.5V
• Dropout voltage specification: 0.9V @ 150mA
• Package type: 4-XDFN Exposed Pad (X2-DFN1010-4)
• Surface mount compatibility
• Operating temperature range: -40°C ~ 85°C
• Regulatory compliance: ROHS3, REACH Unaffected

The substitute parts AP7354-12FS4-7 and AP7354D-12FS4-7 meet all critical electrical and mechanical parameters. Both are manufactured by Diodes Incorporated and share identical output voltage, current rating, input voltage limits, dropout voltage, package configuration, and temperature range specifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AP7351D-12FS4-7B, AP7354-12FS4-7, and AP7354D-12FS4-7—are active production components from Diodes Incorporated with identical regulatory compliance profiles (ROHS3 Compliant, REACH Unaffected). They share the same electrical specifications for output voltage, current rating, input voltage limits, and dropout voltage performance.

Selection between these parts is based on availability and quiescent current requirements. The AP7354-12FS4-7 and AP7354D-12FS4-7 variants feature lower quiescent current (0.6 µA) compared to the AP7351D-12FS4-7B (1 µA), which may provide advantages in battery-powered or low-power standby applications. All parts are suitable for direct substitution in applications requiring a 1.2V, 150mA linear regulator with the specified electrical and thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can AP7354-12FS4-7 and AP7354D-12FS4-7 be used interchangeably with AP7351D-12FS4-7B?

A: Yes. Both substitute parts meet all critical electrical parameters: 1.2V fixed output, 150mA current capability, 5.5V maximum input voltage, 0.9V dropout voltage at rated current, and identical package configuration (4-XDFN Exposed Pad). All three parts are active production components with equivalent compliance certifications.

Q: What is the difference between AP7354-12FS4-7 and AP7354D-12FS4-7?

A: Both parts are electrically equivalent with identical output voltage, current rating, input voltage limits, and dropout voltage specifications. The primary difference is the supplier device package designation: AP7354-12FS4-7 uses X2-DFN1010-4, while AP7354D-12FS4-7 uses X2-DFN1010-4 (Type B). Both are compatible with the same PCB footprint.

Q: Are there any quiescent current differences between these parts?

A: The AP7351D-12FS4-7B has a quiescent current of 1 µA, while both AP7354 variants operate at 0.6 µA. This difference is relevant only in applications where standby power consumption is a critical design parameter.

Q: Do all three parts use the same package?

A: Yes. All three parts use the 4-XDFN Exposed Pad surface mount package with identical footprint and pinout compatibility.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.