RT8048
UVLO vs. Temperature
3.0
1.6
1.5
EN Threshold Voltage vs. Temperature
EN Threshold Voltage (V)
2.7
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
UVLO (V)
2.4
Rising
Rising
2.1
Falling
Falling
1.8
1.5
-50
-25
0
25
50
75
100
125
0.6
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Output Voltage vs. Output Current
1.24
1.23
Output Voltage vs. Output Current
3.42
3.41
3.40
Output Voltage (V)
Output Voltage (V)
V
OUT
= 1.2V
1.22
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
0
0.1
0.2
0.3
0.4
0.5
V
IN
= 5V
1.21
V
IN
= 3.3V
1.20
1.19
1.18
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
V
IN
= 5V, V
OUT
= 3.3V
0.6
0.7
0.8
0.9
1
Output Current (A)
Output Current (A)
Switching
V
OUT
(10mV/Div)
V
OUT
(10mV/Div)
Switching
V
LX
(5V/Div)
I
L
(2A/Div)
V
IN
= 5V, V
OUT
= 1.2V, I
OUT
= 1A
V
LX
(5V/Div)
I
L
(2A/Div)
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 1A
Time (250ns/Div)
Time (250ns/Div)
DS8048-01 June 2011
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RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
