RT8055B
Output Current Limit vs. Input Voltage
6.0
5.5
6.0
5.5
Output Current Limit vs. Temperature
Output Current Limit (A)
5.0
4.5
4.0
3.5
3.0
2.5
Output Current Limit (A)
5.0
4.5
4.0
3.5
3.0
2.5
V
OUT
= 3.3V
2.0
3.5
3.7
3.9
4.1
4.3
4.5
4.7
4.9
5.1
5.3
5.5
2.0
-50
-25
0
25
V
IN
= 5V, V
OUT
= 3.3V
50
75
100
125
Input Voltage (V)
Temperature (°C)
Output Voltage vs. Temperature
3.40
3.38
0.840
0.832
Reference Voltage vs. Temperature
Reference Voltage (V)
V
IN
= 5V, V
OUT
= 3.3V
I
OUT
= 0A
-50
-25
0
25
50
75
100
125
3.36
0.824
0.816
0.808
0.800
0.792
0.784
0.776
0.768
0.760
-50
-25
0
25
50
75
100
125
Output Voltage (V)
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
Temperature (°C)
Temperature (°C)
Output Ripple
Output Ripple
V
LX
(5V/Div)
V
OUT
(5mV/Div)
V
LX
(5V/Div)
V
OUT
(5mV/Div)
V
IN
= 5V, V
OUT
= 3.3V
I
OUT
= 3A
V
IN
= 5V, V
OUT
= 3.3V
I
OUT
= 0A
Time (500ns/Div)
Time (500ns/Div)
DS8055B-03 April 2011
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
