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| Part Number | MAX851ISA+ | MAX861ISA+ | MAX853ISA+ | MAX851ISA+T | MAX850ISA+ | MAX851ISA |
|---|---|---|---|---|---|---|
| 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 |
| Product Status | Active | Active | Active | Active | Active | Obsolete |
| Function | Step-Down | Ratiometric | Step-Down | Step-Down | Step-Down | Step-Down |
| Output Configuration | Negative | Positive or Negative | Negative | Negative | Negative | Negative |
| Topology | Charge Pump | Charge Pump | Charge Pump | Charge Pump | Charge Pump | Charge Pump |
| Output Type | Adjustable (Fixed) | Fixed | Adjustable | Adjustable (Fixed) | Adjustable (Fixed) | Adjustable (Fixed) |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 4.5V | 1.5V, 2.5V | 4.5V | 4.5V | 4.5V | 4.5V |
| Voltage - Input (Max) | 10V | 5.5V | 10V | 10V | 10V | 10V |
| Voltage - Output (Min/Fixed) | -1.28V (-4.1V) | -Vin, 2Vin | -0.5V | -1.28V (-4.1V) | -1.28V (-4.1V) | -1.28V (-4.1V) |
| Voltage - Output (Max) | -9V | - | -9V | -9V | -9V | -9V |
| Current - Output | 5mA | 50mA | 5mA | 5mA | 5mA | 5mA |
| Frequency - Switching | 100kHz | 13kHz, 100kHz, 250kHz | 100kHz | 100kHz | 100kHz | 100kHz |
| Synchronous Rectifier | 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) | -25°C ~ 85°C (TA) | -25°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | 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) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
