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| Part Number | L7981ATR | L7985ATR | L7986ATR | L7981TR | L7980ATR |
|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Active | Active | Active | Active | Active |
| Function | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck | Buck |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 4.5V | 4.5V | 4.5V | 4.5V | 4.5V |
| Voltage - Input (Max) | 28V | 38V | 38V | 28V | 28V |
| Voltage - Output (Min/Fixed) | 0.6V | 0.6V | 0.6V | 0.6V | 0.6V |
| Voltage - Output (Max) | 28V | 38V | 38V | 28V | 28V |
| Current - Output | 3A | 2A | 3A | 3A | 2A |
| Frequency - Switching | 250kHz ~ 1MHz | 250kHz ~ 1MHz | 250kHz ~ 1MHz | 250kHz ~ 1MHz | 250kHz ~ 1MHz |
| Synchronous Rectifier | No | No | No | No | No |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) Exposed Pad | 8-SOIC (0.154", 3.90mm Width) Exposed Pad | 8-SOIC (0.154", 3.90mm Width) Exposed Pad | 8-VFDFN Exposed Pad | 8-SOIC (0.154", 3.90mm Width) Exposed Pad |
| Supplier Device Package | 8-HSOP | 8-HSOP | 8-HSOP | 8-VFQFPN (3x3) | 8-HSOP |
