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| Part Number | LM2676SD-3.3 | LM2678SD-3.3 | LM2676LD-3.3 | LM2676S-3.3 |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Not For New Designs | Obsolete | Obsolete | Not For New Designs |
| Function | Step-Down | Step-Down | - | Step-Down |
| Output Configuration | Positive | Positive | - | Positive |
| Topology | Buck | Buck | - | Buck |
| Output Type | Fixed | Fixed | - | Fixed |
| Number of Outputs | 1 | 1 | - | 1 |
| Voltage - Input (Min) | 8V | 8V | - | 8V |
| Voltage - Input (Max) | 40V | 40V | - | 40V |
| Voltage - Output (Min/Fixed) | 3.3V | 3.3V | - | 3.3V |
| Voltage - Output (Max) | - | - | - | - |
| Current - Output | 3A | 5A | - | 3A |
| Frequency - Switching | 260kHz | 260kHz | - | 260kHz |
| Synchronous Rectifier | No | No | - | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | - | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 14-VDFN Exposed Pad | 14-VDFN Exposed Pad | 14-VDFN Exposed Pad | TO-263-8, D²Pak (7 Leads + Tab), TO-263CA |
| Supplier Device Package | 14-VSON (5x6) | 14-VSON (5x6) | 14-VSON (6x5) | DDPAK/TO-263-7 |
