AP3405SHE-7 Equivalent & Substitute Parts

Part Overview

The AP3405SHE-7 is a buck switching regulator IC manufactured by Diodes Incorporated, designed for positive adjustable output voltage regulation with 600mA output current capability. This device operates across a 2.3V to 5.5V input range and delivers adjustable output from 0.7V to 5.5V, making it suitable for portable and embedded power management applications.

The AP3405SHE-7 is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

AP3405SHE-7

Diodes IncorporatedIn Stock: 1185AP3405SHE-7 Datasheet

Current PartRFQ

TPS62290DRVR

Texas InstrumentsIn Stock: 25196TPS62290DRVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP3405SHE-7 are identified based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Input voltage range: minimum 2.3V, maximum 5.5V or higher
• Output voltage adjustability: minimum 0.7V or lower, maximum 5.5V or higher
• Output current capability: equal to or greater than 600mA
• Switching frequency: within acceptable range (1.5MHz to 2.5MHz)
• Synchronous rectifier topology: required
• Operating temperature range: -40°C to 85°C or wider

Mechanical Compatibility Criteria:

• Surface mount package with exposed pad
• Pin count and footprint compatibility
• Moisture sensitivity level: 1 (Unlimited) or equivalent

Compliance & Certification:

• RoHS3 compliance required
• REACH unaffected status
• EAR99 classification

The TPS62290DRVR meets these substitution criteria with enhanced specifications in output current (1A vs. 600mA) and input voltage maximum (6V vs. 5.5V), while maintaining compatibility across all critical parameters.

Parameter Comparison

Engineering Selection Recommendations

The TPS62290DRVR is an active production substitute for the obsolete AP3405SHE-7. Both devices maintain identical compliance certifications (ROHS3, REACH unaffected, EAR99 classification) and moisture sensitivity ratings.

The TPS62290DRVR provides enhanced electrical specifications: higher maximum input voltage (6V vs. 5.5V), lower minimum output voltage (0.6V vs. 0.7V), higher maximum output voltage (6V vs. 5.5V), and greater output current capability (1A vs. 600mA). These enhancements ensure the substitute can support applications originally designed for the AP3405SHE-7 without performance degradation.

The primary design consideration is package compatibility. The AP3405SHE-7 uses an 8-pin UFDFN package, while the TPS62290DRVR uses a 6-pin WDFN package. PCB layout modifications are required to accommodate the different pin count and footprint. Schematic redesign may be necessary to account for the different pinout configuration.

Frequently Asked Questions (FAQ)

Q: Can the TPS62290DRVR directly replace the AP3405SHE-7 without PCB modifications?

A: No. The AP3405SHE-7 uses an 8-pin UFDFN package while the TPS62290DRVR uses a 6-pin WDFN package. Different pin counts and footprints require PCB layout redesign and schematic updates.

Q: Are the electrical specifications of the TPS62290DRVR compatible with AP3405SHE-7 applications?

A: Yes. The TPS62290DRVR meets or exceeds all critical electrical parameters of the AP3405SHE-7, including input voltage range, output voltage adjustability, output current capability, switching frequency, and operating temperature range.

Q: What is the impact of the higher output current rating (1A vs. 600mA) on substitution?

A: The higher output current rating of the TPS62290DRVR is a superset capability. Applications designed for 600mA operation will function within the TPS62290DRVR's specifications. No derating or performance loss occurs.

Q: Do both parts have identical compliance certifications?

A: Yes. Both the AP3405SHE-7 and TPS62290DRVR are ROHS3 compliant, REACH unaffected, and classified as EAR99. Both have MSL rating 1 (Unlimited).

Q: What is the significance of the switching frequency difference (2MHz vs. 2.25MHz)?

A: The 0.25MHz difference falls within acceptable operating range for buck regulator substitution. This minor variation does not impact functional compatibility or application performance.

Q: Is the TPS62290DRVR available in the same packaging options as the AP3405SHE-7?

A: The TPS62290DRVR is available in Cut Tape (CT) and Digi-Reel packaging. The AP3405SHE-7 was available in Cut Tape. Both are surface mount packages with exposed pads, but the physical package types differ.