EY1501DI-ADJ Equivalent & Substitute Parts

Part Overview

The EY1501DI-ADJ is a linear voltage regulator IC from Intel's Enpirion® series, designed for positive adjustable output applications with 1A current capacity in a 10-DFN (3x3) surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The part delivers adjustable output voltage regulation from 0.8V to 5V with integrated enable, power good, and soft start control features, along with over-current and over-temperature protection.

Key Parameters

Parameter	Value
Manufacturer Part Number	EY1501DI-ADJ
Manufacturer	Intel
Category	Power Management (PMIC)
Product Status	Obsolete
Output Configuration	Positive
Output Type	Adjustable
Voltage - Input (Max)	6V
Voltage - Output (Min/Fixed)	0.8V
Voltage - Output (Max)	5V
Current - Output	1A
Package / Case	10-VFDFN Exposed Pad
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts for the EY1501DI-ADJ are qualified based on the following critical parameters that determine functional equivalence:

Output configuration (Positive)
Output type (Adjustable)
Voltage range: Input maximum 6V, output 0.8V to 5V
Current output capacity: 1A
Package type: 10-VFDFN Exposed Pad (10-DFN 3x3)
Control features: Enable, Power Good, Soft Start
Protection features: Over Current, Over Temperature
Operating temperature range: -40°C ~ 125°C
Surface mount mounting type

The ISL80101IRAJZ series from Renesas Electronics Corporation meets all these parameters across three part number variants, providing direct functional replacement capability for the obsolete EY1501DI-ADJ.

Parameter Comparison

Parameter	EY1501DI-ADJ	ISL80101IRAJZ-T	ISL80101IRAJZ-T7A	ISL80101IRAJZ-TK
Manufacturer	Intel	Renesas Electronics	Renesas Electronics	Renesas Electronics
Product Status	Obsolete	Active	Obsolete	Active
Output Configuration	Positive	Positive	Positive	Positive
Output Type	Adjustable	Adjustable	Adjustable	Adjustable
Voltage - Input (Max)	6V	6V	6V	6V
Voltage - Output (Min/Fixed)	0.8V	0.8V	0.8V	0.8V
Voltage - Output (Max)	5V	5V	5V	5V
Voltage Dropout (Max)	212mV @ 1A	0.212V @ 1A	0.212V @ 1A	0.212V @ 1A
Current - Output	1A	1A	1A	1A
Current - Quiescent (Iq)	5 mA	5 mA	5 mA	5 mA
Current - Supply (Max)	7 mA	7 mA	7 mA	7 mA
PSRR	72dB ~ 58dB (120Hz ~ 1KHz)	65dB ~ 58dB (120Hz ~ 1kHz)	65dB ~ 58dB (120Hz ~ 1kHz)	65dB ~ 58dB (120Hz ~ 1kHz)
Control Features	Enable, Power Good, Soft Start	Enable, Power Good, Soft Start	Enable, Power Good, Soft Start	Enable, Power Good, Soft Start
Protection Features	Over Current, Over Temperature	Over Current, Over Temperature	Over Current, Over Temperature	Over Current, Over Temperature
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	10-VFDFN Exposed Pad	10-VFDFN Exposed Pad	10-VFDFN Exposed Pad	10-VFDFN Exposed Pad
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
ECCN	EAR99	EAR99	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001

Engineering Selection Recommendations

For new designs and production applications requiring replacement of the obsolete EY1501DI-ADJ, the ISL80101IRAJZ series from Renesas Electronics Corporation provides direct functional equivalence with improved compliance status.

ISL80101IRAJZ-T and ISL80101IRAJZ-TK are both classified as Active products, ensuring long-term availability and supply chain stability. Both variants carry ROHS3 Compliant certification and REACH Unaffected status, meeting current environmental and regulatory requirements. ISL80101IRAJZ-TK offers higher inventory availability (10,100 pcs) compared to ISL80101IRAJZ-T (41,400 pcs), with both available in Cut Tape (CT) and Digi-Reel® packaging options.

ISL80101IRAJZ-T7A is classified as Obsolete with limited inventory (934 pcs), making it unsuitable for new production applications despite meeting all parametric requirements.

For new designs, select either ISL80101IRAJZ-T or ISL80101IRAJZ-TK based on packaging preference and supply requirements. Both deliver identical electrical performance and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Are the ISL80101IRAJZ variants pin-compatible with the EY1501DI-ADJ?

A: Yes. All substitute parts use the identical 10-VFDFN Exposed Pad package with the same pin configuration, enabling direct PCB-level replacement without layout modifications.

Q: What is the difference between ISL80101IRAJZ-T and ISL80101IRAJZ-TK?

A: Both parts are electrically and functionally identical. The suffix designates packaging and tape configuration. ISL80101IRAJZ-T and ISL80101IRAJZ-TK are available in Cut Tape (CT) and Digi-Reel® formats. Selection depends on assembly process requirements and volume needs.

Q: Why is ISL80101IRAJZ-T7A listed if it is obsolete?

A: ISL80101IRAJZ-T7A is included for reference as a parametric equivalent with documented inventory. However, it is classified as Obsolete and should not be selected for new production due to limited availability and lack of long-term supply assurance.

Q: Are there compliance differences between the original EY1501DI-ADJ and the ISL80101IRAJZ substitutes?

A: The original part carries RoHS Compliant status. All ISL80101IRAJZ variants carry ROHS3 Compliant certification, which represents an enhanced compliance standard. Both meet current regulatory requirements. All parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: Can the ISL80101IRAJZ series handle the same voltage dropout specifications as the EY1501DI-ADJ?

A: Yes. The EY1501DI-ADJ specifies 212mV dropout at 1A, while ISL80101IRAJZ variants specify 0.212V (212mV) at 1A, providing equivalent performance.

Q: What is the moisture sensitivity level for these parts?

A: All parts, including the original EY1501DI-ADJ and all ISL80101IRAJZ variants, carry MSL 3 rating with 168-hour floor life, requiring identical handling and storage protocols.

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