The LTC1694-1 is a dual SMBus active pull-up designed to enhance data transmission speed and reliability under all specified SMBus loading conditions. The LTC1694-1 is also compatible with the Philips I2C Bus. The LTC1694-1 allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance, by supplying a high pull-up current of 2.2mA to slew the SMBus or I2C lines during positive bus transitions. During negative transitions or steady DC levels, the LTC1694-1 sources zero current. External resistors, one on each bus line, trigger the LTC1694-1 during positive bus transitions and set the pull-down current level. These resistors determine the slew rate during negative bus transitions and the logic low DC level. The LTC1694-1 is available in a 5-pin SOT-23 package. Applications * Notebook and Palmtop Computers * Portable Instruments * Battery Chargers * Industrial Control Application * TV/Video Products * ACPI SMBus Interface * Improves SMBus/I2C™ Rise Time Transition * Ensures Data Integrity with Multiple Devices on the SMBus/I2C * Improves Low State Noise Margin * Wide Supply Voltage Range: 2.7V to 6V * Parallel Multiple LTC1694-1 Devices for Increased Drive * Low Profile (1mm) SOT-23 (ThinSOT™) Package https://elecena.pl/product/252052/smbus-ic-accelerator 2007-03-02 https://elecena.pl/product/252052/smbus-ic-accelerator 2016-04-27 https://elecena.pl/product/252052/smbus-ic-accelerator 2025-01-20