ES1021QI Equivalent & Substitute Parts

Part Overview

The ES1021QI is an Intel Enpirion® power supply controller designed for hot-swap applications and power supply sequencing. This device operates as a 24-QFN (4x4) surface-mount integrated circuit with a supply voltage range of 1.5V to 5.5V and a maximum supply current of 200 µA. The ES1021QI is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system design and maintenance applications.

Substiute Parts

ES1021QI

IntelIn Stock: 2271ES1021QI Datasheet

Current PartRFQ

APR34150MTR-G1

Diodes IncorporatedIn Stock: 8410APR34150MTR-G1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute identification for the ES1021QI is based on the following critical parameters:

• Functional Category: Power Management (PMIC) with controller functionality
• Operating Temperature Range: -40°C to 85°C
• Supply Voltage Compatibility: Devices operating within overlapping voltage ranges
• Mounting Type: Surface Mount technology
• Regulatory Compliance: RoHS and REACH compliance status
• Product Availability: Active status preferred for ongoing procurement

The APR34150MTR-G1 qualifies as a substitute based on matching functional category (Power Management PMIC), identical operating temperature range (-40°C to 85°C), surface-mount packaging, and equivalent regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The APR34150MTR-G1 is available as an active product from Diodes Incorporated, addressing the obsolescence status of the ES1021QI. Both devices maintain identical operating temperature specifications (-40°C to 85°C) and equivalent regulatory compliance (RoHS and REACH). The substitute device demonstrates improved moisture sensitivity characteristics (MSL 1 versus MSL 3), reducing handling and storage constraints. Supply voltage ranges overlap within the 3.3V to 5.5V window, supporting compatibility in applications operating within this common industrial range. The APR34150MTR-G1 exhibits lower supply current consumption (100 µA versus 200 µA), providing potential power efficiency benefits in battery-powered or low-power applications.

Frequently Asked Questions (FAQ)

Q: What makes APR34150MTR-G1 a valid substitute for ES1021QI?

A: Both devices are Power Management (PMIC) controllers with identical operating temperature ranges (-40°C to 85°C), surface-mount packaging, and equivalent regulatory compliance. The substitute is an active product, addressing the obsolescence of the original part.

Q: Are there package compatibility considerations?

A: The ES1021QI uses 24-VFQFN Exposed Pad packaging, while the APR34150MTR-G1 uses 8-SOIC packaging. Physical footprint differences require PCB layout modification for direct substitution.

Q: How do supply voltage ranges compare?

A: The ES1021QI operates from 1.5V to 5.5V, while the APR34150MTR-G1 operates from 3.3V to 6V. Applications requiring operation below 3.3V cannot use the substitute without additional voltage regulation.

Q: What is the significance of the MSL rating difference?

A: The ES1021QI has MSL 3 (168-hour floor life), requiring controlled storage and handling. The APR34150MTR-G1 has MSL 1 (unlimited floor life), eliminating moisture sensitivity constraints and simplifying inventory management.

Q: Are both parts RoHS compliant?

A: Yes. The ES1021QI is RoHS Compliant, and the APR34150MTR-G1 is ROHS3 Compliant. Both meet current regulatory requirements for hazardous substance restrictions.