AP7344-3328RH4-7 Equivalent & Substitute Parts

Part Overview

The AP7344-3328RH4-7 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed dual-output applications. This device integrates two independent 300mA regulators in a compact 8-XFDFN exposed pad package, delivering 2.8V and 3.3V outputs with low dropout voltage characteristics. The part is currently in Last Time Buy status, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

AP7344-3328RH4-7

Diodes IncorporatedIn Stock: 786AP7344-3328RH4-7 Datasheet

Current PartRFQ

AP7345D-3328RH4-7

Diodes IncorporatedIn Stock: 5735AP7345D-3328RH4-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP7345D-3328RH4-7 qualifies as a direct substitute based on the following critical parameters:

• Identical package type: 8-XFDFN Exposed Pad (X2-DFN1612-8)
• Matching output configuration: Positive fixed dual-output
• Identical output voltage levels: 2.8V and 3.3V
• Equivalent output current capability: 300mA per channel
• Matching maximum input voltage: 5.25V
• Equivalent dropout voltage performance: 0.29V–0.3V @ 300mA
• Identical quiescent current: 140 µA
• Matching PSRR specification: 75dB (1kHz)
• Identical operating temperature range: -40°C to 85°C
• Equivalent compliance certifications: ROHS3, MSL 1

The primary distinction is product status: AP7344-3328RH4-7 is Last Time Buy, while AP7345D-3328RH4-7 is Active, providing long-term availability for new designs and ongoing production.

Parameter Comparison

Engineering Selection Recommendations

For new designs and ongoing production requiring dual-output linear regulation at 2.8V and 3.3V with 300mA per channel, the AP7345D-3328RH4-7 is the recommended selection. This part maintains full electrical and mechanical compatibility with the AP7344-3328RH4-7 while offering Active product status, ensuring long-term supply chain stability and manufacturer support.

Existing designs currently using AP7344-3328RH4-7 can transition to AP7345D-3328RH4-7 without PCB modifications, as both devices share identical pinout, package footprint, and electrical performance within the specified parameter ranges. The AP7345D-3328RH4-7 includes enhanced protection features (Short Circuit in addition to Over Current) and expanded control capabilities (Current Limit in addition to Enable), providing additional design flexibility.

Both parts maintain ROHS3 compliance and MSL 1 rating, supporting standard manufacturing and storage conditions without moisture bake-out requirements.

Frequently Asked Questions (FAQ)

Q: Can AP7345D-3328RH4-7 replace AP7344-3328RH4-7 in existing designs?

A: Yes. Both parts are electrically and mechanically identical in output voltage, output current, input voltage range, dropout voltage, quiescent current, PSRR, operating temperature range, and package footprint. No circuit modifications or PCB changes are required.

Q: What is the difference between these two parts?

A: The primary difference is product lifecycle status. AP7344-3328RH4-7 is Last Time Buy, while AP7345D-3328RH4-7 is Active. Additionally, AP7345D-3328RH4-7 includes Current Limit control and Short Circuit protection, compared to Enable control and Over Current protection on AP7344-3328RH4-7.

Q: Are the packages identical?

A: Yes. Both parts use the 8-XFDFN Exposed Pad package (X2-DFN1612-8) with identical pinout and footprint dimensions.

Q: Do both parts meet the same compliance standards?

A: Yes. Both AP7344-3328RH4-7 and AP7345D-3328RH4-7 are ROHS3 compliant with MSL 1 rating, REACH Unaffected status, and EAR99 ECCN classification.

Q: What output voltages do these regulators provide?

A: Both devices provide fixed dual outputs at 2.8V and 3.3V, each capable of delivering 300mA continuous current.

Q: What is the maximum input voltage for these parts?

A: The maximum input voltage for both AP7344-3328RH4-7 and AP7345D-3328RH4-7 is 5.25V.