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| PartNumber | LM2678S-3.3 | LM2678S-3.3/NOPB | LM2678S-3.3 NS |
| Description | Switching Voltage Regulators NRND, alternate is LM2678S-3.3/NOPB | Switching Voltage Regulators HIGH EFF 5A STEP- DOWN VLTG REG | |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | - |
| RoHS | N | E | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TO-263-7 | TO-263-7 | - |
| Output Voltage | 3.3 V | 3.3 V | - |
| Output Current | 5 A | 5 A | - |
| Number of Outputs | 1 Output | 1 Output | - |
| Input Voltage MAX | 40 V | 40 V | - |
| Topology | Buck | Buck | - |
| Input Voltage MIN | 8 V | 8 V | - |
| Switching Frequency | 260 kHz | 260 kHz | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Series | LM2678 | LM2678 | - |
| Packaging | Tube | Tube | - |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - |
| Type | Step Down | Step Down | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Moisture Sensitive | Yes | Yes | - |
| Operating Supply Current | 4.2 mA | 4.2 mA | - |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | - |
| Factory Pack Quantity | 45 | 45 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Tradename | SIMPLE SWITCHER | SIMPLE SWITCHER | - |
| Unit Weight | 0.056438 oz | 0.056438 oz | - |