AP7335-18SNG-7 Equivalent & Substitute Parts

Part Overview

The AP7335-18SNG-7 is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. It delivers a fixed 1.8V output at 300mA with a maximum dropout voltage of 0.3V, designed for surface mount applications in the 6-UDFN Exposed Pad package. The device is Active in product status with 14,838 units currently in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

AP7335-18SNG-7

Diodes IncorporatedIn Stock: 14886AP7335-18SNG-7 Datasheet

Current PartRFQ

AP7331-18SNG-7

Diodes IncorporatedIn Stock: 1081AP7331-18SNG-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP7331-18SNG-7 qualifies as a parametric equivalent based on the following criteria:

Matching Parameters:

• Fixed output voltage: 1.8V
• Output current rating: 300mA
• Maximum input voltage: 6V
• Package type: 6-UDFN Exposed Pad (U-DFN2020-6)
• Mounting type: Surface Mount
• Operating temperature range: -40°C ~ 85°C
• Control features: Enable function
• Protection features: Over Current, Over Temperature
• RoHS3 compliance and MSL 1 rating

Substitution Logic: Both parts are from the same manufacturer (Diodes Incorporated) and share identical output specifications, package geometry, and thermal operating range. The AP7331-18SNG-7 maintains functional compatibility for applications requiring a fixed 1.8V, 300mA linear regulator in the specified package.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7335-18SNG-7 and AP7331-18SNG-7 are Active products with ROHS3 compliance and identical MSL 1 ratings. Selection between these parts should be based on application-specific requirements regarding quiescent current (80 µA vs. 75 µA) and PSRR measurement frequency. The AP7335-18SNG-7 specifies dropout voltage at 0.3V @ 300mA, while the AP7331-18SNG-7 does not specify this parameter. Both parts are suitable for direct substitution in applications where the specified electrical and thermal characteristics are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the AP7331-18SNG-7 be used as a direct replacement for the AP7335-18SNG-7?

A: Yes. Both parts deliver 1.8V at 300mA in the same 6-UDFN Exposed Pad package with identical operating temperature ranges and protection features. The primary difference is quiescent current specification (75 µA vs. 80 µA).

Q: Are there package compatibility concerns when substituting these parts?

A: No. Both parts use the U-DFN2020-6 package designation with identical mechanical and thermal characteristics, ensuring PCB layout compatibility.

Q: What is the significance of the dropout voltage specification difference?

A: The AP7335-18SNG-7 specifies maximum dropout voltage at 0.3V @ 300mA. The AP7331-18SNG-7 does not provide this specification. Applications with tight input voltage margins should reference the AP7335-18SNG-7 datasheet for confirmed dropout performance.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What inventory considerations apply to these substitutes?

A: The AP7335-18SNG-7 has 14,838 units in stock, while the AP7331-18SNG-7 has 980 units available. Availability should be confirmed based on project lead time requirements.