AP1117Y25L-13 Equivalent & Substitute Parts

Part Overview

The AP1117Y25L-13 is a linear voltage regulator IC manufactured by Diodes Incorporated, designed to deliver a fixed positive output of 2.5V at 1A. The device is packaged in SOT-89-3 (TO-243AA) surface mount configuration and incorporates over-current and over-temperature protection features.

This part carries an Obsolete product status. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support long-term production requirements for applications utilizing this regulator topology.

Key Parameters

Parameter	Value
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Output Voltage (Fixed)	2.5V
Output Current	1A
Input Voltage (Max)	18V
Voltage Dropout (Max)	1.4V @ 1A
Package / Case	TO-243AA (SOT-89-3)
Mounting Type	Surface Mount
Operating Temperature Range	0°C ~ 125°C (TJ)
Protection Features	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the AP1117Y25L-13 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Fixed output voltage of 2.5V
Output current rating of 1A
Maximum input voltage of 18V
Voltage dropout specification of 1.4V @ 1A
Quiescent current of 10 mA
PSRR of 60dB (180Hz)

Physical & Environmental Specifications:

Surface mount packaging in SOT-89-3 (TO-243AA) configuration
Operating temperature range of 0°C ~ 125°C
Over-current and over-temperature protection

Compliance & Regulatory:

ROHS3 compliance
Moisture Sensitivity Level 1 (Unlimited)
REACH Unaffected status

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. Variations in packaging designation (Cut Tape vs. alternative tape formats) do not affect electrical or mechanical compatibility.

Parameter Comparison

Parameter	AP1117Y25L-13	AP1117Y25G-13
Manufacturer	Diodes Incorporated	Diodes Incorporated
Output Voltage (Fixed)	2.5V	2.5V
Output Current	1A	1A
Input Voltage (Max)	18V	18V
Voltage Dropout (Max)	1.4V @ 1A	1.4V @ 1A
Quiescent Current (Iq)	10 mA	10 mA
PSRR	60dB (180Hz)	60dB (180Hz)
Package / Case	TO-243AA (SOT-89-3)	TO-243AA (SOT-89-3)
Mounting Type	Surface Mount	Surface Mount
Operating Temperature	0°C ~ 125°C (TJ)	0°C ~ 125°C (TJ)
Protection Features	Over Current, Over Temperature	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Obsolete

Engineering Selection Recommendations

The AP1117Y25G-13 is a direct parametric equivalent to the AP1117Y25L-13. Both parts are manufactured by Diodes Incorporated within the AP1117 base product family and share identical electrical specifications, thermal characteristics, and package configuration.

Selection between these parts is based on availability and supply chain considerations rather than technical differentiation. Both parts carry Obsolete product status and maintain full ROHS3 compliance and REACH Unaffected regulatory standing. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for storage or handling.

For applications requiring the AP1117Y25L-13, the AP1117Y25G-13 provides equivalent functional performance and direct pin-for-pin compatibility in TO-243AA surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can the AP1117Y25G-13 be used as a direct replacement for the AP1117Y25L-13?

A: Yes. Both parts are parametric equivalents with identical output voltage (2.5V), output current (1A), input voltage rating (18V), dropout voltage (1.4V @ 1A), and package configuration (SOT-89-3). No circuit modifications are required.

Q: Are there any differences in the physical package between these parts?

A: No. Both parts use the TO-243AA package in SOT-89-3 configuration for surface mount applications. Pin assignments and footprint requirements are identical.

Q: What is the significance of the "Y25" designation in both part numbers?

A: The "Y25" designation indicates the fixed output voltage specification of 2.5V for both the AP1117Y25L-13 and AP1117Y25G-13.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH Unaffected, and carry an MSL rating of 1 (Unlimited). They meet identical environmental and regulatory requirements.

Q: What is the difference between the "L" and "G" suffixes in the part numbers?

A: The suffix variation (L vs. G) reflects different tape and reel packaging formats or manufacturing lot designations from Diodes Incorporated. This does not affect electrical performance or mechanical compatibility.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate across the identical temperature range of 0°C to 125°C (junction temperature), with equivalent thermal performance and protection characteristics.

Q: What protection features are included in both regulators?

A: Both the AP1117Y25L-13 and AP1117Y25G-13 include over-current protection and over-temperature protection to safeguard against fault conditions.

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