| PartNumber | SC443ULTRT | SC4437SK-3.3TRT | SC4431CSK-2TRT |
| Description | LED Lighting Drivers DRIVER 3-STRINGS OF 30MA LED, S | Voltage References PRECISION SERIES VOLTAGE REF | Voltage References OPTO DRIVER, SOT 23-5 |
| Manufacturer | Semtech | Semtech | Semtech |
| Product Category | LED Lighting Drivers | Voltage References | Voltage References |
| RoHS | Y | Y | Y |
| Number of Channels | 3 Channel | - | - |
| Output Current | 30 mA | - | - |
| Input Voltage | 4.5 V to 27 V | 4.2 V to 28 V | 1.5 V to 15 V |
| Operating Frequency | 800 kHz | - | - |
| Supply Current Max | 3 mA | 220 uA | 200 uA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 125 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | MLP-UT-16 | SOT-23-3 | SOT-23-5 |
| Series | SC44 | SC44 | SC44 |
| Packaging | Reel | Reel | Reel |
| Output Type | Constant Current | - | - |
| Product | LED Drivers | - | - |
| Type | High Efficiency Integrated Driver | - | - |
| Brand | Semtech | Semtech | Semtech |
| Topology | Boost | - | - |
| Development Kit | SC443EVB | SC4437EVB | - |
| Product Type | LED Lighting Drivers | Voltage References | Voltage References |
| Factory Pack Quantity | 3000 | 3000 | 3000 |
| Subcategory | Driver ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Reference Type | - | Shunt Precision References | Shunt References |
| Output Voltage | - | 3.3 V | 1.5 V |
| Initial Accuracy | - | 1 % | 0.5 % |
| Series VREF Input Voltage Max | - | 28 V | 15 V |
| Shunt Current Max | - | 220 uA | 200 uA |
| Shutdown | - | No Shutdown | No Shutdown |
| Operating Supply Current | - | 110 uA | 110 uA |
| Unit Weight | - | 0.000282 oz | 0.000222 oz |