| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM3503 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITL-16 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITL-16 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITL-25 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITL-25 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
 National Semiconductor ... | LM3503ITL-35 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITL-35 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
 National Semiconductor ... | LM3503ITL-44 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITL-44 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
 National Semiconductor ... | LM3503ITLX-16 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |
| LM3503ITLX-16 |  1Mb/20P | Dual-Display Constant Current LED Driver with Analog Brightness Control |