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| Part Number | MAX861ISA+T | MAX861IUA+T | MAX851ISA+T | MAX860ISA+T | MAX861CSA+T | MAX861ESA+T | MAX861ISA+ |
|---|---|---|---|---|---|---|---|
| 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 | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Active | Active | Active | Active | Obsolete | Active | Active |
| Function | Ratiometric | Ratiometric | Step-Down | Ratiometric | Ratiometric | Ratiometric | Ratiometric |
| Output Configuration | Positive or Negative | Positive or Negative | Negative | Positive or Negative | Positive or Negative | Positive or Negative | Positive or Negative |
| Topology | Charge Pump | Charge Pump | Charge Pump | Charge Pump | Charge Pump | Charge Pump | Charge Pump |
| Output Type | Fixed | Fixed | Adjustable (Fixed) | Fixed | Fixed | Fixed | Fixed |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 1.5V, 2.5V | 1.5V, 2.5V | 4.5V | 1.5V, 2.5V | 1.5V, 2.5V | 1.5V, 2.5V | 1.5V, 2.5V |
| Voltage - Input (Max) | 5.5V | 5.5V | 10V | 5.5V | 5.5V | 5.5V | 5.5V |
| Voltage - Output (Min/Fixed) | -Vin, 2Vin | -Vin, 2Vin | -1.28V (-4.1V) | -Vin, 2Vin | -Vin, 2Vin | -Vin, 2Vin | -Vin, 2Vin |
| Voltage - Output (Max) | - | - | -9V | - | - | - | - |
| Current - Output | 50mA | 50mA | 5mA | 50mA | 50mA | 50mA | 50mA |
| Frequency - Switching | 13kHz, 100kHz, 250kHz | 13kHz, 100kHz, 250kHz | 100kHz | 6kHz, 50kHz, 130kHz | 13kHz, 100kHz, 250kHz | 13kHz, 100kHz, 250kHz | 13kHz, 100kHz, 250kHz |
| Synchronous Rectifier | No | No | No | No | No | No | No |
| Operating Temperature | -25°C ~ 85°C (TA) | -25°C ~ 85°C (TA) | -25°C ~ 85°C (TA) | -25°C ~ 85°C (TA) | - | -40°C ~ 85°C (TA) | -25°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm 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) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-uMAX/uSOP | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
