XC9140 (De XCL303/XCL304Series ■TYPICAL APPLICATION CIRCUIT EXTERNAL COMPONENTS SELECTION (Continued) <Setting soft start time (tSS)> Soft start time is determined by the capacity of the CVREF connected to the VREF terminal. Please select the capacitance value of CVREF within the range of 0.47μF ~ 10μF referring to the below graph. 50 V = 3.7V, V = -3.3V IN OUT I = 1mA, 200mA OUT 40 Ta = 25℃ ) s (m 30 t SS : e im 20 rt T ta ft S o 10 S 0 0 1 2 3 4 5 6 7 8 9 10 C Capacitance (uF) VREF 7/24