AP7342D-2818FS6-7 Equivalent & Substitute Parts

Part Overview

The AP7342D-2818FS6-7 is a linear voltage regulator IC from Diodes Incorporated designed for dual-output power management applications. This device provides positive fixed outputs at 1.8V and 2.8V with 150mA per channel, housed in a 6-pin X2-DFN1212-6 package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute components ensures design continuity and supply chain reliability for applications requiring equivalent or enhanced performance characteristics.

Substiute Parts

AP7342D-2818FS6-7

Diodes IncorporatedIn Stock: 1086AP7342D-2818FS6-7 Datasheet

Current PartRFQ

AP7345D-2818RH4-7

Diodes IncorporatedIn Stock: 729AP7345D-2818RH4-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AP7342D-2818FS6-7 is determined by the following critical parameters:

• Dual positive fixed output configuration at 1.8V and 2.8V
• Output current capability per channel
• Maximum input voltage rating of 5.25V
• Dropout voltage performance
• Operating temperature range of -40°C to 85°C
• Surface mount packaging with exposed pad design
• ROHS3 compliance and REACH unaffected status

The AP7345D-2818RH4-7 qualifies as a manufacturer-recommended substitute. While it maintains the same output voltages, input voltage rating, and temperature range, it provides enhanced current delivery (300mA per channel versus 150mA) and operates in an 8-pin X2-DFN1612-8 package. This larger package accommodates the increased current capability while maintaining electrical compatibility with the original design's voltage specifications and compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The AP7345D-2818RH4-7 is the manufacturer-recommended substitute for the AP7342D-2818FS6-7. Selection of this substitute is supported by:

• Active product status ensuring continued availability and supply chain stability
• Identical voltage output specifications (1.8V and 2.8V) maintaining electrical compatibility
• Matching input voltage rating (5.25V maximum) and operating temperature range (-40°C to 85°C)
• ROHS3 compliance and REACH unaffected status meeting regulatory requirements
• Enhanced current delivery capability (300mA per channel) providing design margin for existing or future applications
• Same manufacturer (Diodes Incorporated) ensuring consistent quality and support

The transition from 6-pin to 8-pin package requires PCB layout modification but maintains the same exposed pad thermal design philosophy. Quiescent current increases from 100 µA to 140 µA, a negligible difference for most applications.

Frequently Asked Questions (FAQ)

Q: Can the AP7345D-2818RH4-7 directly replace the AP7342D-2818FS6-7 without circuit modifications?

A: Electrical substitution is direct for voltage and current specifications. However, the package change from 6-pin X2-DFN1212-6 to 8-pin X2-DFN1612-8 requires PCB layout redesign. Pin assignments and thermal pad placement differ between packages.

Q: What is the primary advantage of the AP7345D-2818RH4-7 over the AP7342D-2818FS6-7?

A: The AP7345D-2818RH4-7 provides doubled output current capability (300mA per channel versus 150mA) while maintaining identical voltage outputs and input specifications. Additionally, it carries Active product status versus Last Time Buy, ensuring long-term availability.

Q: Are there any compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Compliance status is equivalent.

Q: How do the dropout voltage characteristics compare?

A: Dropout voltages scale with output current. At the AP7342's 150mA rating, dropout is 0.39V or 0.3V per channel. At the AP7345's 300mA rating, dropout is 0.3V or 0.39V per channel. Both devices maintain acceptable dropout performance within their respective current ratings.

Q: What is the impact of increased quiescent current in the AP7345D-2818RH4-7?

A: Quiescent current increases from 100 µA to 140 µA, a 40 µA difference. This represents a negligible impact on standby power consumption for most applications.

Q: Is the AP7345D-2818RH4-7 available in the same packaging format?

A: No. The AP7345D-2818RH4-7 uses an 8-pin X2-DFN1612-8 package compared to the 6-pin X2-DFN1212-6 of the original part. Both are surface mount with exposed pads, but physical dimensions and pin counts differ.