RT7271A
Load Transient Response
Load Transient Response
V
OUT
(50mV/Div)
V
OUT
(50mV/Div)
I
L
(2A/Div)
V
IN
= 12V, V
OUT
= 1.8V, I
OUT
= 1A to 4A
I
L
(2A/Div)
V
IN
= 12V, V
OUT
= 1.8V, I
OUT
= 3A to 6A
Time (200μs/Div)
Time (200μs/Div)
Output Voltage Ripple
Output Voltage Ripple
V
OUT
(10mV/Div)
V
OUT
(10mV/Div)
V
LX
(10V/Div)
I
L
(2A/Div)
V
LX
(10V/Div)
I
L
(2A/Div)
V
IN
= 12V, V
OUT
= 1.8V, I
OUT
= 3A
V
IN
= 12V, V
OUT
= 1.8V, I
OUT
= 6A
Time (2μs/Div)
Time (2μs/Div)
Over Voltage Protection
Under Voltage Protection
V
OUT
(1V/Div)
V
OUT
(1V/Div)
V
LX
(5V/Div)
V
IN
= 12V, V
OUT
= 1.8V, I
OUT
= 1A
V
LX
(5V/Div)
V
IN
= 12V, V
OUT
= 1.8V
Time (1ms/Div)
Time (5μs/Div)
Copyright
©
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS7271A-00 February 2013
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
