RT7235/36/39/40
Switching Frequency vs. Input Voltage
700
700
Switching Frequency vs. Temperature
Switching Frequency (kHz)
1
690
680
670
660
650
640
630
620
610
600
-50
-25
0
25
50
75
100
125
Switching Frequency (kHz)
1
690
680
670
660
650
640
630
620
610
600
4
6
8
10
12
14
16
18
Input Voltage (V)
Temperature (°C)
Current Limit vs. Temperature
8.0
7.5
9.0
8.5
Current Limit vs. Input Voltage
Current Limit (A)
7.0
6.5
6.0
5.5
Current Limit (A)
V
IN
= 12V, V
OUT
= 1.05V
-50
-25
0
25
50
75
100
125
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4
6
8
10
12
14
16
18
5.0
Temperature (°C)
Input Voltage (V)
Load Transient Response
RT7235/39
Load Transient Response
RT7235/36/39/40
V
OUT
(20mV/Div)
V
OUT
(20mV/Div)
I
OUT
(2A/Div)
V
OUT
= 12V, V
OUT
= 1.05V, I
OUT
= 0A to 5A
I
OUT
(2A/Div)
V
OUT
= 12V, V
OUT
= 1.05V, I
OUT
= 1A to 2A
5A
Time (100μs/Div)
Time (100μs/Div)
Copyright
©
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7235/36/39/40-00
March 2013
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
