MIC4420CT Equivalent & Substitute Parts

Part Overview

The MIC4420CT is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-Channel and P-Channel MOSFETs in power management applications. The device operates with a non-inverting input configuration and is packaged in TO-220-5. The MIC4420CT is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

MIC4420CT

Microchip TechnologyIn Stock: 1405MIC4420CT Datasheet

Current PartRFQ

MIC4420ZT

Microchip TechnologyIn Stock: 2208MIC4420ZT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC4420CT is determined by strict equivalence across the following critical parameters:

• Package / Case: TO-220-5 (physical and electrical compatibility)
• Driven Configuration: Low-Side (functional requirement)
• Channel Type: Single (driver architecture)
• Gate Type: N-Channel, P-Channel MOSFET (output capability)
• Voltage - Supply: 4.5V ~ 18V (operating range)
• Logic Voltage - VIL, VIH: 0.8V, 2.4V (input threshold compatibility)
• Current - Peak Output (Source, Sink): 6A, 6A (drive capability)
• Input Type: Non-Inverting (signal polarity)
• Rise / Fall Time (Typ): 12ns, 13ns (switching performance)
• Operating Temperature: 0°C ~ 150°C (TJ) (thermal range)

The MIC4420ZT meets all these criteria and qualifies as a direct substitute for the obsolete MIC4420CT.

Parameter Comparison

Engineering Selection Recommendations

The MIC4420ZT is the direct substitute for the obsolete MIC4420CT. Both parts are manufactured by Microchip Technology and share identical electrical and mechanical specifications across all critical parameters. The MIC4420ZT offers the additional advantage of active product status and ROHS3 compliance, making it the preferred choice for new designs and ongoing system support where regulatory compliance is required.

Frequently Asked Questions (FAQ)

Q: Can the MIC4420ZT be used as a direct replacement for the MIC4420CT in existing designs?

A: Yes. The MIC4420ZT is electrically and mechanically equivalent to the MIC4420CT. All functional parameters, including supply voltage range, output current capability, switching performance, and operating temperature range are identical. The TO-220-5 package ensures pin-compatible installation.

Q: What is the primary difference between the MIC4420CT and MIC4420ZT?

A: The MIC4420CT is obsolete, while the MIC4420ZT maintains active product status. Additionally, the MIC4420ZT is ROHS3 compliant, whereas the MIC4420CT is RoHS non-compliant. Functionally and electrically, both parts are equivalent.

Q: Are there any packaging considerations when substituting the MIC4420ZT for the MIC4420CT?

A: Both parts use the TO-220-5 package and through-hole mounting. The MIC4420ZT is supplied in tube packaging. No PCB layout or mechanical modifications are required for substitution.

Q: What parameters must remain constant for a valid substitute?

A: Valid substitutes must maintain identical values for: package type (TO-220-5), driven configuration (low-side), channel type (single), gate type (N-Channel, P-Channel MOSFET), supply voltage range (4.5V ~ 18V), logic voltage thresholds (0.8V, 2.4V), peak output current (6A source/sink), input type (non-inverting), switching performance (12ns/13ns rise/fall time), and operating temperature range (0°C ~ 150°C).