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| Part Number | LM1771TSD/NOPB | LM1771USD/NOPB | LM1771TSDX/NOPB | LM1771SSD/NOPB |
|---|---|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Obsolete | Active |
| Output Type | - | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | - | Step-Down | Step-Down | Step-Down |
| Output Configuration | - | Positive | Positive | Positive |
| Topology | - | Buck | Buck | Buck |
| Number of Outputs | - | 1 | 1 | 1 |
| Output Phases | - | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | - | 2.8V ~ 5.5V | 2.8V ~ 5.5V | 2.8V ~ 5.5V |
| Frequency - Switching | - | 100kHz ~ 1MHz | 100kHz ~ 1MHz | 100kHz ~ 1MHz |
| Duty Cycle (Max) | - | - | - | - |
| Synchronous Rectifier | - | Yes | Yes | Yes |
| Clock Sync | - | No | No | No |
| Serial Interfaces | - | - | - | - |
| Control Features | - | Enable | Enable | Enable |
| 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 |
| Package / Case | - | 6-WDFN Exposed Pad | 6-WDFN Exposed Pad | 6-WDFN Exposed Pad |
| Supplier Device Package | - | 6-WSON (3x3) | 6-WSON (3x3) | 6-WSON (3x3) |
