AP3201AMHTR-G1 Equivalent & Substitute Parts

Part Overview

The AP3201AMHTR-G1 is a buck switching regulator IC manufactured by Diodes Incorporated, designed for positive adjustable output applications. This device operates as a step-down converter with a single adjustable output, delivering up to 2A of output current across an input voltage range of 4.75V to 18V. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

AP3201AMHTR-G1

Diodes IncorporatedIn Stock: 25327AP3201AMHTR-G1 Datasheet

Current PartRFQ

BD9327EFJ-E2

Rohm SemiconductorIn Stock: 17632BD9327EFJ-E2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP3201AMHTR-G1 is determined by alignment of the following critical electrical and mechanical parameters:

Input voltage range compatibility (4.75V to 18V minimum requirement) Output voltage adjustability range (0.92V minimum to 16.2V maximum) Switching frequency (380kHz nominal operation) Output current capability (minimum 2A required) Operating temperature range (-40°C to 85°C) Surface mount packaging with exposed pad configuration RoHS3 compliance and regulatory alignment

The BD9327EFJ-E2 from Rohm Semiconductor qualifies as a substitute based on matching these core parameters while offering enhanced specifications in output current capacity (4A) and improved synchronous rectifier integration.

Parameter Comparison

Engineering Selection Recommendations

The BD9327EFJ-E2 is an active product with current manufacturer support, addressing the obsolescence status of the AP3201AMHTR-G1. Both devices maintain ROHS3 compliance and operate within identical input voltage and temperature specifications. The substitute part provides superior output current capacity (4A versus 2A) and includes integrated synchronous rectification, delivering improved efficiency characteristics.

Package geometry differs between the two devices: the AP3201AMHTR-G1 uses a 10-pin TFSOP/MSOP package (0.118" width), while the BD9327EFJ-E2 employs an 8-pin SOIC package (0.154" width). PCB layout modifications are required to accommodate this package transition. The BD9327EFJ-E2 offers superior moisture sensitivity performance (MSL 1 versus MSL 3), reducing handling and storage constraints.

Frequently Asked Questions (FAQ)

Q: Can the BD9327EFJ-E2 directly replace the AP3201AMHTR-G1 without circuit modifications?

A: Electrical substitution is feasible due to matching input voltage range, output voltage adjustability, and switching frequency. However, package geometry differs (10-pin TFSOP versus 8-pin SOIC), requiring PCB layout redesign. Pin-to-pin functional mapping must be verified against device datasheets before implementation.

Q: What are the key differences in output current capability?

A: The AP3201AMHTR-G1 delivers 2A maximum output current, while the BD9327EFJ-E2 provides 4A. Applications requiring the full 2A specification can utilize the substitute without derating. Applications exceeding 2A benefit from the increased capacity of the substitute device.

Q: How does the synchronous rectifier feature affect substitution?

A: The BD9327EFJ-E2 integrates a synchronous rectifier, improving conversion efficiency compared to the non-synchronous AP3201AMHTR-G1. This enhancement does not prevent substitution but may alter thermal performance and power dissipation characteristics in the application circuit.

Q: Are there compliance or certification concerns with substitution?

A: Both devices maintain ROHS3 compliance, REACH unaffected status, and identical ECCN/HTSUS classifications. No regulatory barriers exist for substitution within these compliance frameworks.

Q: What packaging considerations apply to this substitution?

A: The AP3201AMHTR-G1 uses a 10-TFSOP package (0.118" width), while the BD9327EFJ-E2 uses an 8-SOIC package (0.154" width). The substitute package is wider, requiring verification of PCB routing clearances and component placement constraints. The BD9327EFJ-E2 offers superior moisture sensitivity (MSL 1 unlimited versus MSL 3 at 168 hours), reducing storage and handling requirements.