RT7263B
Current Limit vs. Input Voltage
12
10
12
10
Current Limit vs. Temperature
Current Limit (A)
8
6
4
2
0
4
6
8
10
12
14
16
18
20
22
Current Limit (A)
8
6
4
2
V
IN
= 12V, V
OUT
= 1.2V
0
-50
-25
0
25
50
75
100
125
Input Voltage (V)
Temperature (°C)
Load Transient Response
Load Transient Response
V
OUT
(500mV/Div)
V
OUT
(200mV/Div)
I
OUT
(1A/Div)
V
IN
= 12V, V
OUT
= 1.2V, I
OUT
= 0A to 3A
I
OUT
(1A/Div)
V
IN
= 12V, V
OUT
= 1.2V, I
OUT
= 1A to 3A
Time (100μs/Div)
Time (100μs/Div)
Output Ripple Voltage
V
OUT
(50mV/Div)
V
OUT
(50mV/Div)
Output Ripple Voltage
V
SW
(10V/Div)
V
SW
(10V/Div)
I
L
(1A/Div)
I
L
(2A/Div)
V
IN
= 12V, I
OUT
= 1A
V
IN
= 12V, I
OUT
= 3A
Time (1μs/Div)
Time (1μs/Div)
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS7263B-01
September 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
