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| Part Number | MAX1688ESA | MAX1688ESA+ | MAX1680ESA | MAX1681ESA | MAX1687ESA |
|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Function | Step-Up | Step-Up | Ratiometric | Ratiometric | Step-Up |
| Output Configuration | Positive | Positive | Positive or Negative | Positive or Negative | Positive |
| Topology | Boost | Boost | Charge Pump | Charge Pump | Boost |
| Output Type | Adjustable | Adjustable | Fixed | Fixed | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 2.7V | 2.7V | 2V | 2V | 2.7V |
| Voltage - Input (Max) | 6V | 6V | 5.5V | 5.5V | 6V |
| Voltage - Output (Min/Fixed) | 1.25V | 1.25V | -Vin, 2Vin | -Vin, 2Vin | 1.25V |
| Voltage - Output (Max) | 6V | 6V | - | - | 6V |
| Current - Output | 730mA (Switch) | 730mA (Switch) | 125mA | 125mA | 730mA (Switch) |
| Frequency - Switching | 1MHz | 1MHz | 125kHz, 250kHz | 500kHz, 1MHz | 1MHz |
| Synchronous Rectifier | Yes | Yes | No | No | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
