MAX4420ESA-T Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MAX4420ESA-T is a low-side gate driver IC manufactured by Analog Devices Inc./Maxim Integrated, designed for driving N-Channel and P-Channel MOSFETs in power management applications. This component operates as a non-inverting single-channel driver in an 8-SOIC surface mount package. The MAX4420ESA-T is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Active alternatives from both Analog Devices and Microchip Technology maintain functional compatibility while offering extended product lifecycle status.

Key Parameters

Parameter	Value
Driven Configuration	Low-Side
Channel Type	Single
Gate Type	N-Channel, P-Channel MOSFET
Input Type	Non-Inverting
Voltage - Supply	4.5V ~ 18V
Logic Voltage - VIL, VIH	0.8V, 2.4V
Current - Peak Output (Source, Sink)	6A, 6A
Rise / Fall Time (Typ)	25ns, 25ns
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4420ESA-T is determined by strict equivalence across the following critical parameters:

Driven Configuration: Low-Side only
Channel Type: Single channel
Gate Type: N-Channel, P-Channel MOSFET support
Input Type: Non-Inverting
Supply Voltage Range: 4.5V ~ 18V minimum
Logic Voltage Thresholds: VIL 0.8V, VIH 2.4V
Peak Output Current: 6A source and sink capability
Package: 8-SOIC form factor with 0.154" (3.90mm) width
Surface Mount compatibility

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalent (Same Manufacturer): MAX4420ESA+T maintains identical electrical specifications and packaging, differing only in product status (Active vs. Obsolete) and distribution format.

Cross-Manufacturer Alternatives (Microchip Technology): MIC4420YM, MIC4420YM-TR, MIC4420ZM, and MIC4420ZM-TR provide functional equivalence with identical core electrical parameters. These parts maintain the same supply voltage range, logic thresholds, output current ratings, and 8-SOIC package specification. Variations exist in rise/fall time performance (12ns/13ns vs. 25ns/25ns) and operating temperature ranges, which represent performance enhancements rather than compatibility limitations.

Parameter Comparison

Parameter	MAX4420ESA-T	MAX4420ESA+T	MIC4420YM	MIC4420YM-TR	MIC4420ZM	MIC4420ZM-TR
Manufacturer	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Product Status	Obsolete	Active	Active	Active	Active	Active
Driven Configuration	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side
Channel Type	Single	Single	Single	Single	Single	Single
Input Type	Non-Inverting	Non-Inverting	Non-Inverting	Non-Inverting	Non-Inverting	Non-Inverting
Voltage - Supply	4.5V ~ 18V	4.5V ~ 18V	4.5V ~ 18V	4.5V ~ 18V	4.5V ~ 18V	4.5V ~ 18V
Logic Voltage - VIL, VIH	0.8V, 2.4V	0.8V, 2.4V	0.8V, 2.4V	0.8V, 2.4V	0.8V, 2.4V	0.8V, 2.4V
Current - Peak Output (Source, Sink)	6A, 6A	6A, 6A	6A, 6A	6A, 6A	6A, 6A	6A, 6A
Rise / Fall Time (Typ)	25ns, 25ns	25ns, 25ns	12ns, 13ns	12ns, 13ns	12ns, 13ns	12ns, 13ns
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	0°C ~ 150°C (TJ)	0°C ~ 150°C (TJ)
Package / Case	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Same Manufacturer): MAX4420ESA+T is the primary substitute for MAX4420ESA-T. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and maintain identical electrical specifications. The MAX4420ESA+T carries Active product status, ensuring long-term availability and manufacturing support. This option is recommended when maintaining manufacturer consistency is a design requirement.

For Cross-Manufacturer Substitution (Microchip Technology): The MIC4420 series (MIC4420YM, MIC4420YM-TR, MIC4420ZM, MIC4420ZM-TR) provides functional equivalence with enhanced performance characteristics. All MIC4420 variants are Active products with extended operating temperature ranges and faster switching times (12ns/13ns rise/fall vs. 25ns/25ns). These parts are suitable for applications where improved thermal performance or faster switching transitions provide system benefits.

Packaging and Distribution Considerations: Selection between tube, cut tape, and tape & reel packaging depends on procurement volume and assembly requirements. MAX4420ESA+T is available in Cut Tape (CT) & Digi-Reel format. MIC4420YM is supplied in Tube packaging, MIC4420YM-TR in Cut Tape & Digi-Reel, MIC4420ZM in Tube, and MIC4420ZM-TR in Tape & Reel format.

Compliance and Regulatory: All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), REACH Unaffected status, and identical ECCN and HTSUS classifications, ensuring regulatory equivalence for procurement and export purposes.

Frequently Asked Questions (FAQ)

Q: Can MIC4420 parts from Microchip Technology be used as direct replacements for MAX4420ESA-T?

A: Yes. All MIC4420 variants (MIC4420YM, MIC4420YM-TR, MIC4420ZM, MIC4420ZM-TR) meet the core electrical requirements for substitution: identical supply voltage range (4.5V ~ 18V), logic thresholds (0.8V/2.4V), peak output current (6A source/sink), and 8-SOIC package specification. The faster switching times and extended temperature ranges represent performance enhancements compatible with MAX4420ESA-T applications.

Q: What is the difference between MIC4420YM and MIC4420ZM?

A: Both parts are functionally equivalent with identical electrical specifications and switching performance (12ns/13ns rise/fall time). The primary difference is operating temperature range: MIC4420YM operates from -40°C to 150°C (TJ), while MIC4420ZM operates from 0°C to 150°C (TJ). Selection depends on application temperature requirements.

Q: Does packaging format affect electrical compatibility?

A: No. Packaging format (Tube, Cut Tape & Digi-Reel, or Tape & Reel) affects only procurement and assembly logistics, not electrical performance or pin compatibility. All variants in the same part number family maintain identical electrical specifications and 8-SOIC pinout.

Q: Why does MAX4420ESA+T have the same specifications as MAX4420ESA-T but different product status?

A: MAX4420ESA+T is the active production equivalent of the obsolete MAX4420ESA-T. Both parts are manufactured by Analog Devices Inc./Maxim Integrated with identical electrical performance. The status change reflects manufacturing lifecycle management, with MAX4420ESA+T representing the current supported product for new designs and ongoing production.

Q: Are there any performance trade-offs when substituting with MIC4420 parts?

A: No trade-offs exist. MIC4420 variants provide equivalent or superior performance. Switching times are faster (12ns/13ns vs. 25ns/25ns), and operating temperature ranges are extended. These represent performance improvements that maintain full compatibility with MAX4420ESA-T circuit designs.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited moisture sensitivity), REACH Unaffected status, ECCN EAR99, and HTSUS 8542.39.0001 classification. Regulatory and export requirements are identical across all listed alternatives.

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