| Part Number | LT3973EMSE#TRPBF | LT3973IMSE#TRPBF | 
|---|---|---|
| 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) | 4.2V | 4.2V | 
| Voltage - Input (Max) | 42V | 42V | 
| Voltage - Output (Min/Fixed) | 1.21V | 1.21V | 
| Voltage - Output (Max) | 24V | 24V | 
| Current - Output | 750mA | 750mA | 
| Frequency - Switching | 195kHz ~ 2.15MHz | 195kHz ~ 2.15MHz | 
| Synchronous Rectifier | No | No | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad | 
| Supplier Device Package | 10-MSOP-EP | 10-MSOP-EP |