AP7342-3028FS6-7 Equivalent & Substitute Parts

Part Overview

The AP7342-3028FS6-7 is a linear voltage regulator IC from Diodes Incorporated designed for dual-output power management applications. This device provides two fixed output channels at 2.8V and 3V with 150mA output current per channel, housed in a 6-pin X2-DFN1212-6 package. The part is currently in Last Time Buy status, making identification of compatible substitutes essential for ongoing design support and production continuity.

Substiute Parts

AP7342-3028FS6-7

Diodes IncorporatedIn Stock: 1076AP7342-3028FS6-7 Datasheet

Current PartRFQ

AP7345D-3028RH4-7

Diodes IncorporatedIn Stock: 848AP7345D-3028RH4-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP7345D-3028RH4-7 qualifies as a manufacturer-recommended substitute based on the following alignment criteria:

Matching Parameters:

• Identical output voltage configuration: 2.8V and 3V fixed outputs
• Identical input voltage maximum: 5.25V
• Identical output configuration: Positive, Fixed
• Identical number of regulators: 2
• Identical PSRR specification: 75dB (1kHz)
• Identical operating temperature range: -40°C ~ 85°C
• Identical RoHS and REACH compliance status
• Identical mounting type: Surface Mount

Allowable Differences:

• Output current increased from 150mA to 300mA per channel (higher capacity, backward compatible)
• Package upgraded from 6-pin to 8-pin X2-DFN1612-8 (larger footprint, enhanced thermal performance)
• Voltage dropout specifications maintained or improved
• Product status upgraded from Last Time Buy to Active (ensures long-term availability)

Parameter Comparison

Engineering Selection Recommendations

The AP7345D-3028RH4-7 is the manufacturer-recommended substitute for the AP7342-3028FS6-7. Selection of this substitute is supported by:

• Compliance Continuity: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment across product generations.
• Product Status Advantage: The substitute transitions from Last Time Buy to Active status, providing extended availability and supply chain stability.
• Functional Equivalence: Identical output voltage configuration and input specifications ensure drop-in compatibility for applications requiring 2.8V and 3V dual outputs.
• Enhanced Capability: The increased output current capacity (300mA vs. 150mA per channel) and additional protection features (Short Circuit vs. Over Current) provide design margin without compromising existing functionality.
• Package Consideration: The upgrade from 6-pin to 8-pin package requires PCB layout modification but offers improved thermal performance through the larger X2-DFN1612-8 footprint.

Frequently Asked Questions (FAQ)

Q: Can the AP7345D-3028RH4-7 directly replace the AP7342-3028FS6-7 without PCB modifications?

A: The substitute part requires PCB layout changes due to package differences. The AP7342 uses a 6-pin X2-DFN1212-6 package, while the AP7345D uses an 8-pin X2-DFN1612-8 package. Pin assignments and footprint dimensions differ, necessitating schematic and layout updates.

Q: What are the key electrical differences between these parts?

A: The primary electrical difference is output current capacity: the AP7345D-3028RH4-7 provides 300mA per channel compared to 150mA for the AP7342-3028FS6-7. Both parts maintain identical output voltages (2.8V and 3V), input voltage limits (5.25V maximum), and PSRR specifications (75dB at 1kHz). The substitute includes additional control features (Current Limit) and enhanced protection (Short Circuit).

Q: Is the AP7345D-3028RH4-7 suitable for applications with lower current requirements?

A: Yes. The higher current rating of the AP7345D-3028RH4-7 is backward compatible with applications designed for 150mA output. The substitute will operate within specification for any load current up to its 300mA maximum rating per channel.

Q: What is the impact of increased quiescent current on power consumption?

A: The AP7345D-3028RH4-7 has a quiescent current of 140 µA compared to 100 µA for the AP7342-3028FS6-7. This 40 µA difference represents a 40% increase in standby power consumption. For battery-powered or low-power applications, this difference should be evaluated against the benefits of extended product availability and enhanced protection features.

Q: Are there thermal considerations when upgrading to the AP7345D-3028RH4-7?

A: The larger 8-pin X2-DFN1612-8 package of the AP7345D-3028RH4-7 provides improved thermal characteristics compared to the 6-pin X2-DFN1212-6 package of the AP7342-3028FS6-7. The exposed pad design in both packages supports thermal management, but the larger die area of the substitute enables better heat dissipation at higher output currents.

Q: Do both parts support the same control and protection features?

A: Both parts include Enable control functionality. The AP7345D-3028RH4-7 adds Current Limit control and upgrades protection from Over Current to Short Circuit protection, providing enhanced circuit safeguarding without removing existing functionality.