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| Part Number | LM1771USD/NOPB | LM1771USDX/NOPB | LM1771SSD/NOPB | LM1771TSD/NOPB |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor |
| Product Status | Active | Obsolete | Active | 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) | - |
