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| PartNumber | LT3991IMSE#TRPBF | LT3991IMSE#PBF | LT3991IMSE |
| Description | Switching Voltage Regulators 55V, 1.2A, 2MHz Step-Down Regulator with 2.8uA Quiescent Current | Switching Voltage Regulators 55V, 1.2A, 2MHz Step-Down Regulator with 2.8uA Quiescent Current | |
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | LINEAR |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | MSOP-10 | MSOP-10 | - |
| Output Voltage | 1.19 V to 30 V | 1.19 V to 30 V | - |
| Output Current | 1.2 A | 1.2 A | - |
| Number of Outputs | 1 Output | 1 Output | - |
| Input Voltage MAX | 55 V | 55 V | - |
| Topology | Buck | Buck | - |
| Input Voltage MIN | 4.3 V | 4.3 V | - |
| Switching Frequency | 2 MHz | 2000 kHz | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Series | LT3991 | LT3991 | - |
| Packaging | Reel | Tube | - |
| Input Voltage | 4 V to 55 V | 4.3 V to 5.5 V | - |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - |
| Quiescent Current | 2.8 uA | 2.8 uA | - |
| Type | Step Down Switching Regulator | Step-Down Regulator | - |
| Brand | Analog Devices / Linear Technology | Analog Devices / Linear Technology | - |
| Shutdown | Shutdown | Shutdown | - |
| Development Kit | DC1526A | DC1526A | - |
| Operating Supply Current | 0.0017 mA | 0.0017 mA | - |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | - |
| Factory Pack Quantity | 2500 | 50 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |