AP2402A21DNTR-E1 Equivalent & Substitute Parts

Part Overview

The AP2402A21DNTR-E1 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed dual-output applications. This device provides two independent regulated outputs at 2.5V and 1.8V with 300mA and 300mA current capacity respectively, housed in an 8-DFN (2x2) surface mount package. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

AP2402A21DNTR-E1

Diodes IncorporatedIn Stock: 800AP2402A21DNTR-E1 Datasheet

Current PartRFQ

TC1302B-IPVMF

Microchip TechnologyIn Stock: 1159TC1302B-IPVMF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP2402A21DNTR-E1 is determined by the following critical parameters:

• Output voltage configuration: Dual fixed outputs at 2.5V and 1.8V
• Output current capability: Minimum 300mA on primary output, minimum 150mA on secondary output
• Input voltage tolerance: Maximum 6V
• Package type: 8-DFN surface mount with exposed pad
• Control and protection features: Enable/Shutdown capability with over-current and over-temperature protection
• Compliance standards: ROHS3 compliance required

The TC1302B-IPVMF from Microchip Technology meets these substitution criteria while offering active product status and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The TC1302B-IPVMF is the manufacturer-recommended substitute for the obsolete AP2402A21DNTR-E1. Selection of this alternative is supported by the following factors:

• Active product status ensures long-term availability and supply chain continuity
• Identical output voltage configuration (2.5V, 1.8V) maintains circuit compatibility
• Matching input voltage specification (6V maximum) preserves power supply requirements
• Both devices carry ROHS3 compliance certification
• Extended operating temperature range (-40°C ~ 125°C) provides broader environmental tolerance compared to the original part (-20°C ~ 60°C)

Design considerations for implementation include secondary output current capacity (150mA versus 300mA on the original) and package footprint differences (8-VDFN 3x3 versus 8-WFDFN 2x2). These differences require evaluation against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Why is the AP2402A21DNTR-E1 no longer available? A: The AP2402A21DNTR-E1 has reached end-of-life status and is classified as obsolete. The TC1302B-IPVMF provides equivalent functionality with active product status.

Q: Are the output voltages identical between the two parts? A: Yes. Both the AP2402A21DNTR-E1 and TC1302B-IPVMF provide fixed dual outputs at 2.5V and 1.8V.

Q: What is the difference in output current capability? A: The AP2402A21DNTR-E1 provides 300mA on both outputs. The TC1302B-IPVMF provides 300mA on the primary output and 150mA on the secondary 1.8V output. Applications requiring 300mA on the 1.8V output must evaluate this difference.

Q: Are the packages compatible? A: Both devices use 8-DFN surface mount packages with exposed pads. However, the AP2402A21DNTR-E1 uses a 2x2mm footprint while the TC1302B-IPVMF uses a 3x3mm footprint. PCB layout modifications are required for substitution.

Q: Do both parts support enable and shutdown functions? A: The AP2402A21DNTR-E1 includes both Enable and Shutdown control features. The TC1302B-IPVMF includes Enable control only. Applications requiring shutdown functionality must evaluate this difference.

Q: What is the quiescent current difference? A: The AP2402A21DNTR-E1 draws 90 µA quiescent current. The TC1302B-IPVMF draws 180 µA. Applications with strict power consumption requirements should account for this difference.

Q: Are both parts RoHS compliant? A: Yes. Both the AP2402A21DNTR-E1 and TC1302B-IPVMF are ROHS3 compliant.