SD8942 PIN DESCRIPTION PIN DESCRIPTION PINNAMEFUNCTION Bootstrap. A capacitor connected between SW and BST pins is required to form a 1 BS floating supply across the high-side switch driver. 2 GND Ground Adjustable version feedback input. Connect FB to the center point of the external 3 FB resistor divider. 4 Drive this pin to a logic-high to enable the IC. Drive to a logic-low to disable the IC EN and enter micro-power shutdown mode. 5 VIN Power supply Pin 6 SW Switching Pin PIN CONFLGURATION BS 1 6 SW GND 2 5 IN FB 3 4 EN SOT23-6 ( ) SD8942 www.shouding.net 2