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MIC37112YM Equivalent & Substitute Parts
Part Overview
The MIC37112YM is a linear voltage regulator IC featuring positive adjustable output with 1A current capacity in an 8-SOIC package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The MIC37112YM provides adjustable output voltage regulation from 1V to 5V with integrated over-current and over-temperature protection, suitable for applications requiring compact, adjustable power management solutions.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Category | Power Management (PMIC) |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Current - Output | 1A |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output Range | 1V to 5V |
| Voltage Dropout (Max) | 0.4V @ 1A |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C to 125°C |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
The MIC69103YML-TR qualifies as a direct substitute for the MIC37112YM based on the following critical parameters:
Matching Electrical Characteristics:
- Output configuration: Positive adjustable
- Output current capacity: 1A
- Maximum input voltage: 5.5V
- Control features: Enable function
- Protection features: Over-current and over-temperature protection
- Operating temperature range: -40°C to 125°C
- Compliance: ROHS3 compliant, REACH unaffected
Substitution Basis: The MIC69103YML-TR maintains functional equivalence through identical output current rating, input voltage specification, and protection mechanisms. Both components are Microchip Technology products with matching regulatory compliance. The substitute part is classified as active product status, ensuring ongoing availability and support.
Parameter Comparison
| Parameter | MIC37112YM | MIC69103YML-TR |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Active |
| Output Configuration | Positive | Positive |
| Output Type | Adjustable | Adjustable |
| Current - Output | 1A | 1A |
| Voltage - Input (Max) | 5.5V | 5.5V |
| Voltage - Output (Min) | 1V | 0.5V |
| Voltage - Output (Max) | 5V | 5.5V |
| Voltage Dropout (Max) | 0.4V @ 1A | 0.5V @ 1A |
| Control Features | Enable | Enable |
| Protection Features | Over Current, Over Temperature | Over Current, Over Temperature |
| Operating Temperature | -40°C to 125°C | -40°C to 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 10-VFDFN Exposed Pad, 10-MLF® (3x3) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 2 (1 Year) | 1 (Unlimited) |
Engineering Selection Recommendations
The MIC69103YML-TR is the designated substitute for the obsolete MIC37112YM. Selection of the MIC69103YML-TR is based on:
Product Status: The MIC37112YM is obsolete, necessitating transition to an active product. The MIC69103YML-TR maintains active product status with full manufacturer support and ongoing availability.
Regulatory Compliance: Both components meet ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production.
Electrical Equivalence: Matching output current (1A), input voltage specification (5.5V max), and protection features (over-current and over-temperature) ensure functional compatibility in existing circuit topologies.
Package Consideration: The substitute uses a 10-MLF® package versus the original 8-SOIC package. PCB layout modification is required to accommodate the different package footprint and pin configuration.
Moisture Sensitivity: The MIC69103YML-TR features MSL 1 (unlimited shelf life) compared to MSL 2 (1 year) for the original part, providing improved handling and storage characteristics.
Frequently Asked Questions (FAQ)
Q: Can the MIC69103YML-TR directly replace the MIC37112YM without circuit modification?
A: Electrical substitution is valid based on matching output current, input voltage, and protection features. However, package change from 8-SOIC to 10-MLF® requires PCB layout redesign and new footprint implementation.
Q: What are the key differences between these two parts?
A: Primary differences include package type (8-SOIC versus 10-MLF®), output voltage minimum (1V versus 0.5V), output voltage maximum (5V versus 5.5V), dropout voltage (0.4V versus 0.5V @ 1A), and moisture sensitivity level (MSL 2 versus MSL 1).
Q: Is the MIC69103YML-TR suitable for applications requiring 1V minimum output voltage?
A: The MIC69103YML-TR supports 0.5V minimum output, which encompasses the original 1V minimum specification. Applications designed for 1V minimum output are compatible with this substitute.
Q: What is the impact of the package change on design implementation?
A: The 10-MLF® package has different pin assignments and physical dimensions compared to 8-SOIC. Complete schematic verification and PCB layout redesign are necessary to ensure proper signal routing and thermal management.
Q: Are there inventory considerations for the MIC69103YML-TR?
A: The MIC69103YML-TR is available in active production with 17,300 pieces in stock, ensuring supply continuity compared to the obsolete MIC37112YM.
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