| Part Number | LTC1261CS8#PBF | LTC1261CS#PBF | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | 
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| Product Status | Active | Active | 
| Function | Step-Up/Step-Down | Step-Up/Step-Down | 
| Output Configuration | Negative | Negative | 
| Topology | Charge Pump | Charge Pump | 
| Output Type | Adjustable | Adjustable | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 3V | 3V | 
| Voltage - Input (Max) | 8V | 8V | 
| Voltage - Output (Min/Fixed) | -1.25V | -1.25V | 
| Voltage - Output (Max) | -8V | -8V | 
| Current - Output | 12mA | 12mA | 
| Frequency - Switching | 550kHz | 550kHz | 
| Synchronous Rectifier | No | No | 
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 8-SO | 14-SO |