BU28TA2WHFV(2009) Просмотр технического описания (PDF) - ROHM Semiconductor
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производитель
BU28TA2WHFV Datasheet PDF : 28 Pages
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BUTA2WNVX Series, BUTA2WHFV Series
●Reference data BU25TA2WNVX / HFV (Unless otherwise specified, Ta=25℃)
Technical Note
3.5
3.0
2.5
2.0
IO=0uA
IO=100uA
1.5
IO=50mA
IO=200mA
1.0
0.5
Temp.=25°C
VIN=STBY
0.0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Vin Voltage (V)
Fig. 63 Output Voltage
2.55
2.54
2.53
IO=0uA
IO=100uA
2.52
IO=50mA
2.51
IO=200mA
2.50
2.49
2.48
2.47
Temp.=25°C
2.46
VIN=STBY
2.45
2.4
2.5
2.6
2.7
2.8
2.9
3
Vin Voltage (V)
Fig. 64 Line Regulation
100
80
60
40
Temp.=-40°C
20
Temp.=25°C
IO=0uA
Temp.=85°C VIN=STBY
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Vin Voltage (V)
Fig. 65 Circuit Current IGND
0.50
0.45
0.40
Temp.=85°C
0.35
0.30
Temp.=25°C
0.25
0.20
Temp.=-40°C
0.15
0.10
VIN=0.98*VOUT
0.05
STBY=1.5V
0.00
0
0.05
0.1
0.15
0.2
Output Current (A)
Fig. 66 Dropout Voltage
2.55
2.54
Temp.=25°C
2.53
2.52
Temp.=85°C
2.51
2.50
2.49
2.48
2.47 Temp.=-40°C
2.46
VIN=3.5V
STBY=1.5V
2.45
0
0.05
0.1
0.15
0.2
Output Current (A)
Fig. 69 Load Regulation
10
8
Temp.=85°C
Temp.=25°C
6
Temp.=-40°C
4
2
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
STBY Voltage (V)
Fig. 67 STBY Input Current
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0
VIN=5.5V
VIN=3.5V
VIN=3.0V
Temp.=25°C
STBY=1.5V
0.1
0.2
0.3
0.4
0.5
0.6
Output Current (A)
Fig. 70 OCP Threshold
120
110
100
90
80
70
60
50
40
0
Temp.=-40°C
Temp.=25°C
Temp.=85°C
0.05
0.1
0.15
0.2
Output Current (A)
Fig. 68 IOUT - IGND
3.50
3.00
2.50
2.00
1.50
1.00
Temp.=85°C
Temp.=25°C
0.50
Temp.=-40°C
0.00
0
0.5
1
1.5
STBY Voltage (V)
Fig. 71 STBY Threshold
2.55
2.54
VIN=3.5V
STBY=1.5V
2.53
Io=0.1mA
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
-40
-15
10
35
60
85
Temp. (°C)
Fig. 72 VOUT vs Temp
50.00
40.00
30.00
20.00
VIN=3.5V
STBY=1.5V
Io=0mA
10.00
0.00
-40
-15
10
35
60
85
Temp. (°C)
Fig. 73 IGND vs Temp
1.000
0.900
0.800
0.700
0.600
0.500
0.400
0.300
0.200
0.100
VIN=3.5V
STBY=0V
0.000
-0.100
-40
-15
10
35
60
85
Temp. (°C)
Fig. 74 IGND vs Temp (STBY)
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© 2009 ROHM Co., Ltd. All rights reserved.
11/27
2009.05 - Rev.B
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