| Part Number | LT3999EMSE#PBF | LT3991EMSE#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-Down |
| Output Configuration | Positive, Isolation Capable | Positive |
| Topology | Push-Pull | Buck |
| Output Type | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 |
| Voltage - Input (Min) | 2.7V | 4.3V |
| Voltage - Input (Max) | 36V | 55V |
| Voltage - Output (Min/Fixed) | - | 1.19V |
| Voltage - Output (Max) | - | 30V |
| Current - Output | 1A | 1.2A |
| Frequency - Switching | 50kHz ~ 1MHz | 200kHz ~ 2MHz |
| 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 |