RT8298
Current Limit vs. Temperature
12.0
11.5
Load Transient Response
Current Limit (A)
11.0
10.5
10.0
9.5
9.0
8.5
V
OUT
(100mV/Div)
I
OUT
(5A/Div)
V
IN
= 12V, V
OUT
= 3.3V
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 0A to 6A
8.0
-50
-25
0
25
50
75
100
125
Time (250μs/Div)
Temperature (°C)
Load Transient Response
V
OUT
(10mV/Div)
V
OUT
(100mV/Div)
V
SW
(10V/Div)
I
OUT
(5A/Div)
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 3A to 6A
Output Ripple Voltage
I
L
(2A/Div)
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 3A
Time (250μs/Div)
Time (1μs/Div)
Output Ripple Voltage
V
OUT
(10mV/Div)
V
IN
(5V/Div)
V
OUT
(2V/Div)
I
L
(5A/Div)
I
L
(5A/Div)
Power On from VIN
V
SW
(10V/Div)
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 6A
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 6A
Time (1μs/Div)
Time (2.5ms/Div)
Copyright
©
2011 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS8298-01
November 2011
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
