CMPWR150SF Ver la hoja de datos (PDF) - ON Semiconductor

Número de pieza

componentes Descripción

Fabricante

CMPWR150SF

500mA/3.3V SmartOR™ Power Regulator

ON Semiconductor 

CMPWR150

Figure 6. Transient Characteristics Test Set-up

VCC Power-up (VAUX = 3.3V). Figure 7 shows the output response as VCC approaches the select threshold

during a power-up when VAUX is present (3.3V). The output capacitor is already fully charged. When VCC

reaches the select threshold, the in-rush current is minimal and the VCC disturbance is only 130mV. The built-in

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

VOUT offset = 3.3V, VCC offset = 4.3V

PowerUpVa ux33v. bmp

Figure 7. VCC Power-up (VAUX = 3.3V)

VCC Power-up (VAUX =3.0V). Figure 8 shows the output response as VCC approaches the select threshold during

power-up. The auxiliary voltage, VAUX is set to a low level of 3.0V. When VCC reaches the select threshold, a

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

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

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

Share Link: