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LM2622MM-ADJ Equivalent & Substitute Parts
Part Overview
The LM2622MM-ADJ is a boost switching regulator IC from Texas Instruments designed for step-up voltage conversion applications. It delivers positive adjustable output from 1.26V to 12V with 1A switch current capability in an 8-TSSOP/8-MSOP surface mount package. The device operates across input voltages of 2V to 12V with a switching frequency of 600kHz or 1.3MHz.
The LM2622MM-ADJ is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance of systems utilizing this regulator.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Function | Step-Up (Boost) |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2V |
| Voltage - Input (Max) | 12V |
| Voltage - Output (Min/Fixed) | 1.26V |
| Voltage - Output (Max) | 12V |
| Current - Output | 1A (Switch) |
| Frequency - Switching | 600kHz, 1.3MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 8-VSSOP |
Substitute Part Grouping Explanation
Substitution of the LM2622MM-ADJ is determined by strict equivalence across the following electrical and mechanical parameters:
- Boost topology with positive adjustable output configuration
- Single output with 1A switch current capability
- Input voltage range of 2V to 12V
- Output voltage range of 1.26V to 12V
- Switching frequency options of 600kHz or 1.3MHz
- Operating temperature range of -40°C to 125°C
- Surface mount package in 8-TSSOP/8-MSOP form factor with 0.118" (3.00mm) width
- 8-VSSOP supplier device package designation
The LM2622MM-ADJ/NOPB is identified as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above.
Parameter Comparison
| Parameter | LM2622MM-ADJ | LM2622MM-ADJ/NOPB |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Function | Step-Up | Step-Up |
| Output Configuration | Positive | Positive |
| Output Type | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 |
| Voltage - Input (Min) | 2V | 2V |
| Voltage - Input (Max) | 12V | 12V |
| Voltage - Output (Min/Fixed) | 1.26V | 1.26V |
| Voltage - Output (Max) | 12V | 12V |
| Current - Output | 1A (Switch) | 1A (Switch) |
| Frequency - Switching | 600kHz, 1.3MHz | 600kHz, 1.3MHz |
| Synchronous Rectifier | No | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 8-VSSOP | 8-VSSOP |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8542.39.0001 | 8542.39.0001 |
Engineering Selection Recommendations
The LM2622MM-ADJ/NOPB is the direct substitute for the obsolete LM2622MM-ADJ. Both parts share identical electrical and mechanical specifications, ensuring functional compatibility in existing designs.
The primary distinction between these parts is product status and compliance certification. The LM2622MM-ADJ is obsolete and RoHS non-compliant, while the LM2622MM-ADJ/NOPB is active and ROHS3 compliant. For new designs or systems requiring regulatory compliance with modern environmental standards, the LM2622MM-ADJ/NOPB is the appropriate selection. For legacy system maintenance where the original part specification must be preserved, the LM2622MM-ADJ/NOPB provides electrical and mechanical equivalence with improved compliance status.
Frequently Asked Questions (FAQ)
Q: Can the LM2622MM-ADJ/NOPB be used as a direct replacement for the LM2622MM-ADJ?
A: Yes. The LM2622MM-ADJ/NOPB is electrically and mechanically equivalent to the LM2622MM-ADJ across all specified parameters, including boost topology, output voltage range, switching current, frequency options, operating temperature, and package form factor.
Q: What is the difference between LM2622MM-ADJ and LM2622MM-ADJ/NOPB?
A: The primary differences are product status and RoHS compliance. The LM2622MM-ADJ is obsolete and RoHS non-compliant. The LM2622MM-ADJ/NOPB is active and ROHS3 compliant. All electrical and mechanical specifications are identical.
Q: Are there any package or pinout differences between these parts?
A: No. Both parts use the 8-TSSOP/8-MSOP surface mount package with 0.118" (3.00mm) width and 8-VSSOP supplier device package designation. Pinout and package dimensions are identical.
Q: What does the "/NOPB" suffix indicate?
A: The "/NOPB" suffix indicates that the part is supplied without plumbum (lead-free). This designation is associated with RoHS3 compliance.
Q: Can I use the LM2622MM-ADJ/NOPB in applications requiring RoHS compliance?
A: Yes. The LM2622MM-ADJ/NOPB is ROHS3 compliant and suitable for applications with RoHS regulatory requirements.
Q: Are the switching frequency options the same for both parts?
A: Yes. Both the LM2622MM-ADJ and LM2622MM-ADJ/NOPB support switching frequencies of 600kHz or 1.3MHz.
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