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| PartNumber | LT1977EFE#TRPBF | LT1977EFE#PBF | LT1977IFE#PBF |
| Description | Switching Voltage Regulators 1.5A, 500kHz HV Step-down w/ Burst Mode Operation | Switching Voltage Regulators 1.5A, 500kHz HV Step-down w/ Burst Mode Operation | Switching Voltage Regulators 1.5A, 500kHz HV Step-down w/ BurstMode Operation |
| 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-16 | TSSOP-16 | TSSOP-16 |
| Output Voltage | 1.2 V to 54 V | Adjustable | Adjustable |
| Output Current | 1.24 A | 1.24 A | 1.24 A |
| Number of Outputs | 1 Output | 1 Output | 1 Output |
| Input Voltage MAX | 60 V | 60 V | 60 V |
| Topology | Buck | Buck | Buck |
| Input Voltage MIN | 3.3 V | 3.3 V | 3.3 V |
| Switching Frequency | 500 kHz | 500 kHz | 500 kHz |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Series | LT1977 | LT1977 | LT1977 |
| Packaging | Reel | Tube | Tube |
| Height | 1.1 mm | 1.1 mm | 1.1 mm |
| Input Voltage | 3.3 V to 60 V | 3.3 V to 60 V | 3.3 V to 60 V |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - 40 C to + 125 C |
| Quiescent Current | 100 uA | 100 uA | 100 uA |
| Type | Step Down Switching Regulator | Monolithic Buck | Monolithic Buck |
| Brand | Analog Devices / Linear Technology | Analog Devices / Linear Technology | Analog Devices / Linear Technology |
| Shutdown | Shutdown | Shutdown | Shutdown |
| Development Kit | DC639A | - | - |
| Operating Supply Current | 0.1 mA | 0.1 mA | 0.1 mA |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 2500 | 95 | 95 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Supply Voltage Min | - | 3.3 V | 3.3 V |
| Unit Weight | - | - | 0.011605 oz |