RT2805A
Current Limit vs. Temperature
12
11
60
50
40
30
20
10
0
4
8
12
16
20
24
28
Shutdown Current vs. Input Voltage
Current Limit (A)
10
9
8
7
6
5
-50
-25
0
25
50
75
V
IN
= 12V
100
125
Shutdown Current (μA)
V
EN
= 0V
32
36
Temperature (°C)
Input Voltage (V)
Quiescent Current vs. Temperature
1
0.9
Load Transient Response
Quiescent Current (mA)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-50
-25
0
25
50
75
100
125
V
OUT
(200mV/Div)
V
IN
= 36V
V
IN
= 24V
V
IN
= 12V
I
OUT
(2A/Div)
V
IN
= 12V, V
OUT
= 5V, I
OUT
= 0.2A to 5A
Time (100μs/Div)
Temperature (°C)
Load Transient Response
Switching
V
OUT
(200mV/Div)
V
OUT
(10mV/Div)
V
SW
(10V/Div)
I
OUT
(2A/Div)
V
IN
= 12V, V
OUT
= 5V, I
OUT
= 2.5A to 5A
I
L
(5A/Div)
V
IN
= 12V, V
OUT
= 5V, I
OUT
= 5A
Time (100μs/Div)
Time (1μs/Div)
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS2805A-00 November 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
