AP130-28YL-13 Equivalent & Substitute Parts

Part Overview

The AP130-28YL-13 is a linear voltage regulator IC from Diodes Incorporated, designed for positive fixed output applications requiring 2.8V at 300mA in a SOT-89-3 surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components to maintain design continuity and ensure supply chain availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Output Voltage (Fixed)	2.8V
Output Current	300mA
Input Voltage (Max)	5.5V
Voltage Dropout (Max)	0.5V @ 300mA
Package / Case	TO-243AA
Supplier Device Package	SOT-89-3
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute relationships are established based on the following critical parameters that determine functional equivalence:

Output voltage: 2.8V fixed
Output current capability: 300mA minimum
Input voltage maximum: 5.5V or higher
Voltage dropout: 0.5V or lower at rated current
Package / Case: TO-243AA
Supplier device package: SOT-89-3 or SOT-89R-3
Surface mount mounting type
Operating temperature range: -40°C to 85°C minimum
Protection features: Over Current, Over Temperature, Short Circuit

Parts are grouped into two categories: Parametric Equivalents (Diodes Incorporated AP130 series variants) and Manufacturer Recommended Alternatives (cross-manufacturer options).

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Voltage	Output Current	Input Voltage (Max)	Dropout (Max)	Package	Packaging Type	Inventory
AP130-28YL-13	Diodes Incorporated	Discontinued at DiGi Electronics	2.8V	300mA	5.5V	0.5V @ 300mA	SOT-89-3	-	2440 Pcs
AP130-28YG-13	Diodes Incorporated	Active	2.8V	300mA	5.5V	0.5V @ 300mA	SOT-89-3	Tape & Reel (TR)	5400 Pcs
AP130-28YRL-13	Diodes Incorporated	Active	2.8V	300mA	5.5V	0.5V @ 300mA	SOT-89R-3	Cut Tape (CT)	3700 Pcs
AP130-28YRG-13	Diodes Incorporated	Active	2.8V	300mA	5.5V	0.5V @ 300mA	SOT-89R-3	Tape & Reel (TR)	5100 Pcs
MCP1702T-2802E/MB	Microchip Technology	Active	2.8V	250mA	13.2V	0.975V @ 250mA	SOT-89-3	Cut Tape (CT) & Digi-Reel®	1115 Pcs
RT9166-28GX	Richtek USA Inc.	Active	2.8V	300mA	5.5V	0.23V @ 300mA (Typ)	SOT-89-3	-	702 Pcs

Engineering Selection Recommendations

Primary Substitutes (Diodes Incorporated AP130 Series):

AP130-28YG-13, AP130-28YRL-13, and AP130-28YRG-13 are parametric equivalents to the AP130-28YL-13. All three maintain identical electrical specifications: 2.8V output, 300mA current capability, 5.5V maximum input voltage, and 0.5V maximum dropout at rated current. The primary differences are product status (all active versus discontinued) and packaging format (Tape & Reel or Cut Tape versus unspecified). These parts are suitable for direct substitution in new designs and production runs.

Cross-Manufacturer Alternatives:

MCP1702T-2802E/MB (Microchip Technology) provides a 2.8V output at 250mA with extended input voltage range (13.2V maximum) and lower quiescent current (5µA versus 100µA). This part is suitable for applications where the 250mA output current is sufficient and where extended input voltage range or lower quiescent current provides design advantages.

RT9166-28GX (Richtek USA Inc.) matches the AP130-28YL-13 electrical specifications exactly: 2.8V output, 300mA current capability, 5.5V maximum input voltage, and SOT-89-3 package. This part offers superior dropout voltage performance (0.23V typical at 300mA versus 0.5V maximum).

All substitute parts maintain ROHS3 compliance, surface mount mounting type, and TO-243AA case format. Selection should prioritize active product status and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can AP130-28YG-13 replace AP130-28YL-13 directly?

A: Yes. AP130-28YG-13 is a parametric equivalent with identical electrical specifications: 2.8V output, 300mA current capability, 5.5V maximum input voltage, and 0.5V maximum dropout. The only difference is packaging format (Tape & Reel versus unspecified). Both use SOT-89-3 package and TO-243AA case.

Q: What is the difference between SOT-89-3 and SOT-89R-3 packages?

A: Both are surface mount packages in TO-243AA case format. SOT-89R-3 is a variant designation. AP130-28YRL-13 and AP130-28YRG-13 use SOT-89R-3 designation while maintaining identical mechanical and electrical compatibility with SOT-89-3 parts.

Q: Is MCP1702T-2802E/MB a suitable replacement?

A: MCP1702T-2802E/MB is suitable if the application requires only 250mA output current. It provides extended input voltage range (13.2V maximum) and significantly lower quiescent current (5µA). However, dropout voltage is higher (0.975V @ 250mA versus 0.5V @ 300mA), which may impact designs with tight input voltage margins.

Q: Why does RT9166-28GX have lower dropout voltage?

A: RT9166-28GX exhibits 0.23V typical dropout at 300mA compared to 0.5V maximum for AP130-28YL-13. This is a design characteristic of the Richtek device and provides improved efficiency in applications with limited input voltage headroom.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and are suitable for applications requiring RoHS certification.

Q: What packaging options are available for production?

A: AP130-28YG-13 is available in Tape & Reel (TR) format with 5400 pieces in stock. AP130-28YRL-13 is available in Cut Tape (CT) format with 3700 pieces. AP130-28YRG-13 is available in Tape & Reel (TR) format with 5100 pieces. Select based on production volume and assembly line requirements.

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