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| PartNumber | LM3557SD-2 | LM3557SDX-2 | LM3557SD-2/NOPB |
| Description | LED Lighting Drivers Step-Up Converter for White LED Applications 8-WSON -40 to 85 | LED Lighting Drivers Step-Up Converter for White LED Applications 8-WSON -40 to 85 | LED Lighting Drivers Obsolete, LTB expires Nov-02-2017 |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | LED Lighting Drivers | LED Lighting Drivers | LED Lighting Drivers |
| RoHS | N | N | Y |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | LLP-8 | LLP-8 | LLP-8 |
| Series | LM3557 | LM3557 | LM3557 |
| Packaging | Reel | Reel | Reel |
| Height | 0.8 mm | 0.8 mm | 0.8 mm |
| Length | 3 mm | 3 mm | 3 mm |
| Product | LED Drivers | LED Drivers | - |
| Width | 3 mm | 3 mm | 3 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Topology | Boost | Boost | Boost |
| For Use With | White LEDs | White LEDs | - |
| Operating Supply Voltage | 2.7 V to 7.5 V | 2.7 V to 7.5 V | - |
| Product Type | LED Lighting Drivers | LED Lighting Drivers | LED Lighting Drivers |
| Factory Pack Quantity | 1000 | 4500 | 1000 |
| Subcategory | Driver ICs | Driver ICs | Driver ICs |
| Number of Channels | - | - | 1 Channel |
| Output Current | - | - | 800 mA |
| Input Voltage | - | - | 2.7 V to 5.5 V |
| Operating Frequency | - | - | 1.25 MHz |
| Supply Current Max | - | - | 0.8 mA |
| Operating Temperature Range | - | - | - 40 C to + 85 C |
| Output Type | - | - | Current Mode |
| Type | - | - | Inductive |