RT7296A
Load Transient Response
Output Ripple Voltage
V
V
OUT
OUT
(100mV/Div)
(20mV/Div)
I
V
OUT
LX
V
= 12V, V
= 3.3V,
OUT
IN
(1A/Div)
(5V/Div)
I
= 1.5A to 3A to 1.5A, L = 4.7H
V
= 12V, V
= 3.3V, I
= 3A, L = 4.7H
OUT
OUT
IN
OUT
Time (200s/Div)
Time (2s/Div)
Power On from EN
Power Off from EN
V
V
OUT
OUT
(2V/Div)
(2V/Div)
V
V
EN
EN
(2V/Div)
(2V/Div)
V
V
LX
LX
(10V/Div)
(10V/Div)
I
I
LX
LX
(3A/Div)
(3A/Div)
V
= 12V, V
= 3.3V, I
= 3A
V
= 12V, V
= 3.3V, I
= 3A
OUT
IN
OUT
OUT
IN
OUT
Time (5ms/Div)
Time (500s/Div)
Power On from VIN
Power Off from VIN
V
V
OUT
OUT
(2V/Div)
(2V/Div)
V
V
IN
IN
(10V/Div)
(10V/Div)
V
V
LX
LX
(10V/Div)
(10V/Div)
I
I
LX
LX
(3A/Div)
(3A/Div)
V
= 12V, V
= 3.3V, I
= 3A
V
= 12V, V
= 3.3V, I
= 3A
OUT
IN
OUT
OUT
IN
OUT
Time (5ms/Div)
Time (5ms/Div)
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7296A-00 January 2015
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
