| Part Number | LTC3128EUFD#PBF | LTC3118EUFD#PBF | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | 
|   |   | |
| Product Status | Active | Active | 
| Function | Step-Up/Step-Down | Step-Up/Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck-Boost | Buck-Boost | 
| Output Type | Adjustable | Adjustable | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 1.73V | 2.2V | 
| Voltage - Input (Max) | 5.5V | 18V | 
| Voltage - Output (Min/Fixed) | 1.8V | 2V | 
| Voltage - Output (Max) | 5.5V | 18V | 
| Current - Output | 3A | 2A | 
| Frequency - Switching | 1.2MHz | 1.2MHz | 
| Synchronous Rectifier | Yes | Yes | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 20-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 
| Supplier Device Package | 20-QFN (4x5) | 24-QFN (4x5) |