MIC38C44-1BN Equivalent & Substitute Parts Reference

Part Overview

The MIC38C44-1BN by Microchip Technology is a power management IC (PMIC) designed for offline converter applications, supporting Boost, Buck, Flyback, and Forward topologies at a switching frequency of 500kHz. It features an isolated output and an internal switch, with through-hole mounting in a 14-DIP (0.300", 7.62mm) package. This part is marked as obsolete, making it necessary to identify alternative models to support maintenance, repair, and ongoing production requirements.

Substiute Parts

MIC38C44-1BN

Microchip TechnologyIn Stock: 3259MIC38C44-1BN Datasheet

Current PartRFQ

MIC38C44-1YN

Microchip TechnologyIn Stock: 3040MIC38C44-1YN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute power management ICs are grouped strictly according to the following parameters: manufacturer (Microchip Technology), base product number (MIC38C44), category (Power Management, PMIC), output isolation (Isolated), internal switch inclusion (Yes), package type (14-DIP, 0.300", 7.62mm, through hole), frequency-switching (500kHz), supply voltage range (9V ~ 20V), topology compatibility (Boost, Buck, Flyback, Forward), duty cycle (50%), voltage start up (14.5V), control features (Frequency Control), operating temperature (-40°C ~ 150°C), MSL (1 Unlimited), and RoHS/REACH/ECCN/HTSUS compliance indications. Only parts matching these key fields are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

When selecting a substitute for MIC38C44-1BN, the MIC38C44-1YN provides a direct alternative with identical electrical and mechanical parameters, including package, mounting type, function, and operating temperature. The primary differences are in product status and RoHS compliance. The MIC38C44-1YN is active and ROHS3 compliant, while the MIC38C44-1BN is obsolete and RoHS non-compliant. Both meet MSL (1, unlimited) and REACH unaffected criteria.

Frequently Asked Questions (FAQ)

Q: What is the key substitute for MIC38C44-1BN based on electrical and mechanical compatibility?
A: The MIC38C44-1YN is the direct substitute, matching all specified parameters, including topology, frequency, voltage, package, and control features.

Q: Are the package and pinout identical between MIC38C44-1BN and MIC38C44-1YN?
A: Both components use the 14-DIP (0.300", 7.62mm) package and are through-hole mounted, meeting the same mechanical requirements.

Q: Does RoHS compliance differ between the two parts?
A: Yes. MIC38C44-1BN is RoHS non-compliant, while MIC38C44-1YN is ROHS3 compliant.

Q: Can the MIC38C44-1YN be used in place of the MIC38C44-1BN in legacy designs?
A: The MIC38C44-1YN matches all specified parameters from the MIC38C44-1BN within the Power Management (PMIC) category.

Q: Is the operating temperature range the same for both models?
A: Both parts are rated for -40°C to +150°C (TJ).

Q: Is there a difference in moisture sensitivity between the two?
A: Both the MIC38C44-1BN and MIC38C44-1YN have an MSL rating of 1 (Unlimited).

Q: What are the differences in regulatory compliance information?
A: MIC38C44-1BN has HTSUS 8542.39.0060 and is RoHS non-compliant; MIC38C44-1YN has HTSUS 8542.39.0001 and is ROHS3 compliant.

Q: Are both models still available?
A: The MIC38C44-1BN is obsolete. The MIC38C44-1YN is active.