MAX4420CPA Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MAX4420CPA 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 gate driver in an 8-DIP package. The MAX4420CPA is currently classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. Active alternatives with identical or superior electrical characteristics are available from both the original manufacturer and qualified second-source suppliers.

Substiute Parts

MAX4420CPA

Analog Devices Inc./Maxim IntegratedIn Stock: 3770MAX4420CPA Datasheet

Current PartRFQ

MAX4420CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2344MAX4420CPA+ Datasheet

DirectRFQ

TC4420CPA

Microchip TechnologyIn Stock: 22330TC4420CPA Datasheet

DirectRFQ

MIC4420YN

Microchip TechnologyIn Stock: 1516MIC4420YN Datasheet

MFR RecommendedRFQ

MIC4420ZN

Microchip TechnologyIn Stock: 1174MIC4420ZN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4420CPA is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Low-Side operation only
• Channel Type: Single-channel configuration
• Gate Type: N-Channel and P-Channel MOSFET compatibility
• Input Type: Non-Inverting logic
• Supply Voltage Range: 4.5V ~ 18V minimum requirement
• Peak Output Current: 6A source and sink capability minimum
• Package / Case: 8-DIP (0.300", 7.62mm) form factor
• Mounting Type: Through Hole compatibility

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in rise/fall time performance, operating temperature range, and product status are noted but do not disqualify functional substitution within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

MAX4420CPA+ (Analog Devices Inc./Maxim Integrated): Direct manufacturer upgrade path. Maintains identical electrical specifications and 8-DIP package footprint. Achieves ROHS3 compliance and active product status, addressing obsolescence concerns while preserving design compatibility. Recommended for designs requiring original manufacturer continuity.

TC4420CPA (Microchip Technology): Qualified second-source alternative with extended operating temperature range (0°C ~ 150°C TJ). Maintains all core electrical parameters and 8-DIP package compatibility. ROHS3 compliant with active product status. Suitable for applications requiring broader thermal operating envelope.

MIC4420YN (Microchip Technology): Enhanced performance substitute with improved rise/fall time characteristics (12ns, 13ns versus 25ns, 25ns). Extended operating temperature range (-40°C ~ 150°C TJ) supports demanding thermal environments. ROHS3 compliant. Recommended for applications where faster switching performance and wider temperature operation provide system benefits.

MIC4420ZN (Microchip Technology): Performance-enhanced alternative with identical rise/fall time improvement as MIC4420YN (12ns, 13ns). Operating temperature range 0°C ~ 150°C TJ. ROHS3 compliant. Suitable for applications requiring improved switching speed without extended low-temperature operation.

All substitute parts are ROHS3 compliant and carry active product status, ensuring long-term supply availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can MAX4420CPA+ be used as a direct replacement for MAX4420CPA?

A: Yes. MAX4420CPA+ maintains identical electrical specifications, logic thresholds, output current ratings, and 8-DIP package footprint. The primary differences are active product status and ROHS3 compliance. Pin-for-pin compatibility is confirmed.

Q: What is the key difference between Microchip MIC4420YN and MIC4420ZN substitutes?

A: Both parts offer identical rise/fall time performance (12ns, 13ns). The primary distinction is operating temperature range: MIC4420YN supports -40°C ~ 150°C, while MIC4420ZN supports 0°C ~ 150°C. Selection depends on minimum operating temperature requirements.

Q: Are all substitute parts compatible with existing MAX4420CPA PCB layouts?

A: Yes. All substitute parts maintain the 8-DIP (0.300", 7.62mm) package form factor and through-hole mounting type. Pin assignments and electrical interface specifications are identical, enabling direct PCB compatibility without layout modification.

Q: Do the Microchip MIC4420 variants offer performance advantages over MAX4420CPA?

A: MIC4420YN and MIC4420ZN provide faster rise/fall time performance (12ns, 13ns versus 25ns, 25ns), resulting in reduced switching delays. This may benefit applications requiring higher switching frequency or tighter timing control. Core supply voltage, output current, and logic threshold specifications remain equivalent.

Q: Which substitute part is recommended for new designs?

A: For original manufacturer preference, select MAX4420CPA+. For enhanced performance and extended temperature operation, MIC4420YN is recommended. For cost-optimized designs with standard temperature requirements, TC4420CPA or MIC4420ZN provide equivalent functionality. All parts are ROHS3 compliant and actively manufactured.

Q: Is operating temperature range a substitution constraint?

A: Operating temperature range does not disqualify substitution if the application operates within the substitute part's specified range. MAX4420CPA operates 0°C ~ 70°C; all substitutes support at least 0°C ~ 150°C, providing broader thermal capability. Applications requiring sub-zero operation must select MIC4420YN (-40°C minimum).