| Part Number | LTC3646EDE#PBF | LTC3646HDE#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-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Output Type | Adjustable | Adjustable | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 4V | 4V | 
| Voltage - Input (Max) | 40V | 40V | 
| Voltage - Output (Min/Fixed) | 2V | 2V | 
| Voltage - Output (Max) | 30V | 30V | 
| Current - Output | 1A | 1A | 
| Frequency - Switching | 200kHz ~ 3MHz | 200kHz ~ 3MHz | 
| Synchronous Rectifier | Yes | Yes | 
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 14-WFDFN Exposed Pad | 14-WFDFN Exposed Pad | 
| Supplier Device Package | 14-DFN (4x3) | 14-DFN (4x3) |