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| Part Number | L5971D | L5972D | L5973D | L4971D | L5970D |
|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | 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) | 6.5V | 4.4V | 4V | 8V | 4.4V |
| Voltage - Input (Max) | 28V | 36V | 36V | 55V | 36V |
| Voltage - Output (Min/Fixed) | 1.26V | 1.235V | 1.235V | 3.3V | 1.2V |
| Voltage - Output (Max) | 20V | 35V | 35V | 50V | 35V |
| Current - Output | 1.5A | 2A | 2.5A | 1.5A | 1A |
| Frequency - Switching | 100kHz ~ 300kHz | 250kHz | 250kHz | 100kHz ~ 300kHz | 250kHz |
| 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 | 16-SOIC (0.295", 7.50mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) Exposed Pad | 16-SOIC (0.295", 7.50mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SO W | 8-SOIC | 8-HSOP | 16-SO W | 8-SOIC |
