Technical Note
BUTA2WNVX Series, BUTA2WHFV Series
Reference data BU15TA2WNVX / HFV (Ta=25ºC unless otherwise specified.)
100
80
60
40
20
0
1.55
1.54
1.53
1.52
1.51
1.50
1.49
1.48
1.47
1.46
1.45
1.8
1.5
1.2
0.9
0.6
0.3
0.0
IO=0uA
IO=100uA
IO=50mA
IO=200mA
IO=0uA
IO=100uA
IO=50mA
IO=200mA
Temp=-40°C
Temp=25°C
IO=0uA
Temp=25°C
VIN = STBY
Temp=25°C
VIN = STBY
Temp=85°C
VIN = STBY
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
1.25 1.35 1.45 1.55 1.65 1.75 1.85 1.95 2.05 2.15 2.25
Vin Voltage (V)
Vin Voltage (V)
Vin Voltage (V)
Fig. 5 Output Voltage
Fig. 6 Line Regulation
Fig. 7 Circuit Current IGND
120
110
100
90
10
8
140
120
100
80
Temp=85°C
Temp=25°C
Temp=85°C
Temp=25°C
6
80
Temp=-40°C
60
40
20
0
4
70
Temp=-40°C
Temp=25°C
Temp=85°C
Temp=-40°C
60
2
IO=200mA
VIN = 3.5V
50
VIN = STBY
STBY = 1.5V
VIN = STBY
40
0
0
0.05
0.1
0.15
0.2
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Output Current (A)
Vin Voltage (V)
STBY Voltage (V)
Fig. 8 Circuit Current IGND
Fig. 9 STBY Input Current
Fig. 10 IOUT - IGND
2.00
1.75
1.50
1.25
1.00
0.75
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
1.55
1.54
1.53
1.52
1.51
1.50
1.49
1.48
1.47
1.46
1.45
VIN=5.5V
Temp=25°C
VIN=3.5V
Temp=-40°C
VIN=2.5V
Temp=85°C
Temp=25°C
Temp=-40°C
0.50
0.25
Temp=85°C
0.1
Temp=25°C
STBY = 1.5V
VIN = 3.5V
STBY = 1.5V
0.00
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0
0.5
1
1.5
0
0.05
0.15
0.2
Output Current (A)
STBY Voltage (V)
Output Current (A)
Fig. 11 Load Regulation
Fig. 12 OCP Threshold
Fig. 13 STBY Threshold
1.000
0.900
0.800
0.700
0.600
0.500
0.400
0.300
0.200
0.100
0.000
-0.100
1.55
1.54
1.53
1.52
1.51
1.50
1.49
1.48
1.47
1.46
1.45
50.00
40.00
30.00
20.00
10.00
0.00
VIN=3.5V
VIN=3.5V
STBY=0V
VIN=3.5V
STBY=1.5V
Io=0.1mA
STBY=1.5V
Io=0mA
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temp (°C)
Temp (°C)
Temp (°C)
Fig. 14 VOUT vs. Temp
Fig. 15 IGND vs. Temp
Fig. 16 IGND vs. Temp (STBY)
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2009.05 - Rev.B
5/27