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MAX1044C/D Equivalent & Substitute Parts
Part Overview
The MAX1044C/D is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring positive or negative fixed output voltage generation. This component operates as a single-output PMIC with a fixed output configuration and 20mA output current capability.
The MAX1044C/D is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Category | Power Management (PMIC) |
| Topology | Charge Pump |
| Output Configuration | Positive or Negative |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input Range | 1.5V to 10V |
| Voltage - Output | -Vin, nVin, Vin/2 |
| Current - Output | 20mA |
| Frequency - Switching | 1kHz, 5kHz |
| Operating Temperature | 0°C to 70°C |
| Mounting Type | Surface Mount |
| Package Type | Die |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the MAX1044C/D is determined by the following critical parameters:
- Topology: Charge pump switching regulator architecture
- Output Configuration: Positive or negative fixed voltage capability
- Number of Outputs: Single output requirement
- Voltage Range: Input 1.5V to 10V; output -Vin, nVin, Vin/2
- Output Current: 20mA minimum capability
- Switching Frequency: 1kHz or 5kHz operation
- Operating Temperature Range: 0°C to 70°C
- Regulatory Compliance: ROHS3 compliance required
The MAX1044C/D+ qualifies as a direct substitute based on matching all critical electrical and functional parameters within the specified ranges, while offering improved product status and supply availability.
Parameter Comparison
| Parameter | MAX1044C/D (Main Part) | MAX1044C/D+ (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Category | Power Management (PMIC) | Power Management (PMIC) |
| Topology | Charge Pump | Charge Pump |
| Output Configuration | Positive or Negative | Positive or Negative |
| Output Type | Fixed | Fixed |
| Number of Outputs | 1 | 1 |
| Voltage - Input Range | 1.5V to 10V | 1.5V to 10V |
| Voltage - Output | -Vin, nVin, Vin/2 | -Vin, nVin, Vin/2 |
| Current - Output | 20mA | 20mA |
| Switching Frequency | 1kHz, 5kHz | 1kHz, 5kHz |
| Operating Temperature | 0°C to 70°C | 0°C to 70°C |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The MAX1044C/D+ is the direct substitute for the MAX1044C/D. Both components share identical electrical specifications, functional topology, and regulatory compliance status. The primary distinction is product lifecycle status: the MAX1044C/D is obsolete, while the MAX1044C/D+ maintains active production status.
Selection of the MAX1044C/D+ provides:
- Guaranteed supply chain availability through active manufacturing
- Compliance with ROHS3 and REACH regulatory requirements
- Identical electrical performance and pin compatibility
- Continued manufacturer support and technical documentation access
Frequently Asked Questions (FAQ)
Q: Are the MAX1044C/D and MAX1044C/D+ electrically interchangeable?
A: Yes. Both components operate identically across all specified electrical parameters, including input voltage range (1.5V to 10V), output voltage configuration (-Vin, nVin, Vin/2), output current (20mA), and switching frequency (1kHz, 5kHz).
Q: What is the primary reason to transition from MAX1044C/D to MAX1044C/D+?
A: The MAX1044C/D is classified as obsolete, creating supply chain risk. The MAX1044C/D+ is an active product with guaranteed availability and manufacturer support.
Q: Are there package or mounting differences between these parts?
A: Both components use identical Surface Mount Die packaging. No PCB layout modifications are required for substitution.
Q: Do both parts meet the same regulatory compliance standards?
A: Yes. Both the MAX1044C/D and MAX1044C/D+ are ROHS3 compliant. The MAX1044C/D+ additionally carries REACH Unaffected status and EAR99 ECCN classification.
Q: Can the MAX1044C/D+ be used as a direct replacement in existing designs?
A: Yes. The MAX1044C/D+ is a direct functional and electrical equivalent with no design modifications required.
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