| PartNumber | LT3640IFE#PBF | LT3640IUFD#PBF | LT3640IFE#TRPBF |
| Description | Switching Voltage Regulators Dual Monolithic Buck Regulator with Power-On Reset and Watchdog Timer | Switching Voltage Regulators Dual Monolithic Buck Regulator with Power-On Reset and Watchdog Timer | Switching Voltage Regulators Dual Monolithic Buck Regulator with Power-On Reset and Watchdog Timer |
| 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 | TSSOP-28 | QFN-28 | TSSOP-28 |
| Output Voltage | 33.97 V | 33.97 V | 33.97 V |
| Output Current | 1.3 A | 1.3 A | 1.3 A |
| Number of Outputs | 2 Output | 2 Output | 2 Output |
| Input Voltage MAX | 35 V | 35 V | 35 V |
| Topology | Buck | Buck | Buck |
| Input Voltage MIN | 4 V | 4 V | 4 V |
| Switching Frequency | 2.5 MHz | 2.5 MHz | 2.5 MHz |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Series | LT3640 | LT3640 | LT3640 |
| Packaging | Tube | Tube | Reel |
| Input Voltage | 4 V to 35 V | 4 V to 35 V | 4 V to 35 V |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - 40 C to + 125 C |
| Quiescent Current | 0.275 mA | 0.275 mA | 0.275 mA |
| Type | Dual Monolithic Buck Regulator | Dual Monolithic Buck Regulator | Dual Monolithic Buck Regulator |
| Brand | Analog Devices / Linear Technology | Analog Devices / Linear Technology | Analog Devices / Linear Technology |
| Shutdown | Shutdown | Shutdown | Shutdown |
| Operating Supply Current | 0.275 mA | 0.275 mA | 0.275 mA |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 50 | 73 | 2000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |