RT8057A
Power On from EN
Power Off from EN
V
IN
= 5V, V
OUT
= 2.3V,
I
OUT
= 1A
V
EN
(2V/Div)
V
OUT
(2V/Div)
I
OUT
(500mA/Div)
V
EN
(2V/Div)
V
OUT
(2V/Div)
I
OUT
(500mA/Div)
Time (100μs/Div)
V
IN
= 5V, V
OUT
= 2.3V,
I
OUT
= 1A
Time (100μs/Div)
UVLO vs. Temperature
2.4
2.3
2.2
0.80
EN Threshold vs. Temperature
0.78
0.76
Rising
Rising
EN Threshold (V)
UVLO (V)
2.1
2.0
1.9
1.8
1.7
1.6
0.74
0.72
0.70
0.68
0.66
0.64
0.62
Falling
Falling
V
OUT
= 2.3V
1.5
-50
-25
0
25
50
75
100
125
0.60
-50
-25
0
25
V
IN
= 5V, V
OUT
= 2.3V
50
75
100
125
Temperature (°C)
Temperature (°C)
Output Voltage vs. Output Current
2.34
2.33
Output Voltage (V)
2.32
2.31
2.30
2.29
2.28
2.27
V
IN
= 5V, V
OUT
= 2.3V
2.26
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Output Current (A)
DS8057A-00 March 2011
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7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
