CMPWR150

Rev. 3 | Page 9 of 15 | www.onsemi.com

Figure 6. Transient Characteristics Test Set-up

V

during a power-up when V

reaches the select threshold, the in-rush current is minimal and the V

hysteresis of 250mV ensures the regulator remains enabled throughout the transient.

V

V

PowerUpVaux33v.bmp

Figure 7. V

V

power-up. The auxiliary voltage, V

modest level of in-rush current is required to further charge the output capacitor resulting in V

200mV. The built-in hysteresis of 250mV ensures the regulator remains enabled throughout the transient.