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| Part Number | LM2731YMF | LM2733YMF | LM2731YMFX | LM2735YMF | LM2731XMF |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Obsolete | Obsolete | Not For New Designs |
| Function | Step-Up | Step-Up | Step-Up | Step-Up, Step-Up/Step-Down | Step-Up |
| Output Configuration | Positive | Positive | Positive | Positive | Positive |
| Topology | Boost | Boost | Boost | Boost, Flyback, SEPIC | Boost |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 2.7V | 2.7V | 2.7V | 2.7V | 2.7V |
| Voltage - Input (Max) | 14V | 14V | 14V | 5.5V | 14V |
| Voltage - Output (Min/Fixed) | 1.23V | 2.7V | 2.7V | 3V | 2.7V |
| Voltage - Output (Max) | 22V (Switch) | 40V (Switch) | 22V (Switch) | 24V | 22V (Switch) |
| Current - Output | 1.8A (Switch) | 1A (Switch) | 1.8A (Switch) | 2.1A (Switch) | 1.8A (Switch) |
| Frequency - Switching | 600kHz | 600kHz | 600kHz | 520kHz | 1.6MHz |
| Synchronous Rectifier | No | No | No | No | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -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 | Surface Mount |
| Package / Case | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 |
