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| PartNumber | LT3668EMSE#PBF | LT3668HMSE#PBF | LT3668EMSE#TRPBF |
| Description | Switching Voltage Regulators 40V 400mA Step-Down Switching Regulator with Dual Fault Protected Tracking LDOs | Switching Voltage Regulators 40V 400mA Step-Down Switching Regulator with Dual Fault Protected Tracking LDOs | Switching Voltage Regulators 40V 400mA Step-Down Switching Regulator with Dual Fault Protected Tracking LDOs |
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | MSOP-16 | MSOP-16 | MSOP-16 |
| Output Voltage | 39.4 V | 39.4 V | 39.4 V |
| Output Current | 0.4 A | 0.4 A | 0.4 A |
| Number of Outputs | 3 Output | 3 Output | 3 Output |
| Input Voltage MAX | 40 V | 40 V | 40 V |
| Topology | Buck | Buck | Buck |
| Input Voltage MIN | 4.3 V | 4.3 V | 4.3 V |
| Switching Frequency | 2.2 MHz | 2.2 MHz | 2.2 MHz |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 150 C | + 125 C |
| Series | LT3668 | LT3668 | LT3668 |
| Packaging | Tube | Tube | Reel |
| Input Voltage | 4.3 V to 40 V | 4.3 V to 40 V | 4.3 V to 40 V |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 150 C | - 40 C to + 125 C |
| Quiescent Current | 0.01 uA | 0.01 uA | 0.01 uA |
| Type | Step Down Switching Regulator | Step Down Switching Regulator | Step Down Switching Regulator |
| Brand | Analog Devices / Linear Technology | Analog Devices / Linear Technology | Analog Devices / Linear Technology |
| Shutdown | Shutdown | Shutdown | Shutdown |
| Development Kit | DC2243A | DC2243A | DC2243A |
| Operating Supply Current | 0.050 mA | 0.050 mA | 0.050 mA |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 37 | 37 | 2500 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.011676 oz | 0.003527 oz | - |