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| Part Number | LM3677TL-1.8/NOPB | LM3679TL-1.8/NOPB | LM3677TL-1.82/NOPB | LM3677TLX-1.8/NOPB | LM3671TL-1.8/NOPB | LM3673TL-1.8/NOPB | LM3677TL-1.2/NOPB | LM3677TL-1.3/NOPB | LM3677TL-1.5/NOPB |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | National Semiconductor |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Function | Step-Down | - | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down |
| Output Configuration | Positive | - | Positive | Positive | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | - | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Output Type | Fixed | - | Fixed | Fixed | Fixed | Fixed | Fixed | Fixed | Fixed |
| Number of Outputs | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 2.7V | - | 2.7V | 2.7V | 2.7V | 2.7V | 2.7V | 2.7V | 2.7V |
| Voltage - Input (Max) | 5.5V | - | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V | - | 1.82V | 1.8V | 1.8V | 1.8V | 1.2V | 1.3V | 1.5V |
| Voltage - Output (Max) | - | - | - | - | - | - | - | - | - |
| Current - Output | 600mA | - | 600mA | 600mA | 600mA | 350mA | 600mA | 600mA | 600mA |
| Frequency - Switching | 3MHz | - | 3MHz | 3MHz | 2MHz | 2MHz | 3MHz | 3MHz | 3MHz |
| Synchronous Rectifier | Yes | - | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -30°C ~ 85°C (TA) | - | -30°C ~ 85°C (TA) | -30°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -30°C ~ 85°C (TA) | -30°C ~ 85°C (TA) | -30°C ~ 85°C (TA) | -30°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | - | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 5-WFBGA, DSBGA | - | 5-WFBGA, DSBGA | 5-WFBGA, DSBGA | 5-WFBGA, DSBGA | 5-WFBGA, DSBGA | 5-WFBGA, DSBGA | 5-WFBGA, DSBGA | 5-WFBGA, DSBGA |
| Supplier Device Package | 5-DSBGA (1.41x1.08) | - | 5-DSBGA (1.41x1.08) | 5-DSBGA (1.41x1.08) | 5-DSBGA (1.41x1.08) | 5-DSBGA (1.41x1.08) | 5-DSBGA (1.41x1.08) | 5-DSBGA (1.5x1.2) | 5-DSBGA (1.41x1.08) |
