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| Part Number | LM51551DSSR | LM5155DSSR | LM51551DSST | LM51561DSSR |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive |
| Topology | Boost, Flyback, SEPIC | Boost, Flyback, SEPIC | Boost, Flyback, SEPIC | Boost, Flyback, SEPIC |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Phases | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 2.97V ~ 45V | 2.97V ~ 45V | 2.97V ~ 45V | 2.97V ~ 60V |
| Frequency - Switching | 100kHz ~ 2.2MHz | 100kHz ~ 2.2MHz | 100kHz ~ 2.2MHz | 100kHz ~ 2.2MHz |
| Duty Cycle (Max) | 93% | 93% | 96% | 93% |
| Synchronous Rectifier | No | No | No | No |
| Clock Sync | Yes | Yes | Yes | No |
| Serial Interfaces | - | - | - | - |
| Control Features | Soft Start | Soft Start | Soft Start | Current Limit, Enable, Frequency Control, Power Good, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 12-WFDFN Exposed Pad | 12-WFDFN Exposed Pad | 12-WFDFN Exposed Pad | 12-WFDFN Exposed Pad |
| Supplier Device Package | 12-WSON (3x2) | 12-WSON (3x2) | 12-WSON (3x2) | 12-WSON (3x2) |
