BU28TA2WHFV 데이터 시트보기 (PDF) - ROHM Semiconductor
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BU28TA2WHFV Datasheet PDF : 33 Pages
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BUTA2WNVX series, BUTA2WHFV series
●Reference data BU28TA2WNVX / HFV (Unless otherwise specified, Ta=25℃)
3.5
3.0
2.5
2.0
IO=0uA
1.5
IO=100uA
IO=50mA
1.0
IO=200mA
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. 92 Output Voltage
2.85
2.84
2.83
2.82
2.81
2.80
2.79
2.78
2.77
2.76
2.75
2.7
IO=0uA
IO=100uA
IO=50mA
IO=200mA
Temp.=25°C
VIN = STBY
2.8
2.9
3
3.1
3.2
Vin Voltage (V)
Fig. 93 Line Regulation
Technical Note
100
80
IO=0uA
VIN = STBY
60
40
Temp.=-40°C
20
Temp.=25°C
Temp.=85°C
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Vin Voltage (V)
Fig. 94 Circuit Current IGND
0.40
0.35
0.30
0.25
0.20
T emp. = 85°C
T emp. = 25°C
0.15
T emp.= -40°C
0.10
0.05
0.00
0
VIN=0.98 x VOUT
STBY = 1.5V
0.05
0.1
0.15
0.2
Output Current (A)
Fig. 95 Dropout Voltage
2.85
2.84
2.83
2.82
2.81
2.80
2.79
2.78
2.77
2.76
2.75
0
VIN = 3.8V
STBY = 1.5V
Temp.=-40°C
T emp. = 85°C
T emp. = 25°C
0.05
0.1
0.15
0.2
Output Currnt (A)
Fig. 98 Load Regulation
2.85
2.84
2.83
2.82
2.81
2.80
2.79
2.78
2.77
2.76
2.75
-40
VIN=3.8V
STBY=1.5V
Io=0.1mA
-15
10
35
60
85
Temp. (°C)
Fig. 101 VOUT vs Temp
10
8
T emp. = 85°C
6
T emp. = 25°C
4
T emp. = -40°C
2
VIN = STBY
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
STBY Voltage (V)
Fig. 96 STBY Input Current
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0
VIN=5.5V
VIN=3.8V
VIN=3.3V
Temp=25°C
STBY = 1.5V
0.1
0.2
0.3
0.4
0.5
0.6
Output Current (A)
Fig. 99 OCP Threshold
50.00
40.00
30.00
20.00
10.00
0.00
-40
VIN=3.8V
STBY=1.5V
Io=0mA
-15
10
35
60
85
Temp. (°C)
Fig. 102 IGND vs Temp
120
110
100
90
80
70
60
50
40
0
T emp. = 85°C
T emp. = 25°C
T emp. = -40°C
VIN = 3.8V
STBY = 1.5V
0.05
0.1
0.15
0.2
Output Currnt (A)
Fig. 97 IOUT - IGND
3.50
VIN=3.8V
3.00
2.50
2.00
1.50
Temp.=85°C
1.00
Temp.=25°C
Temp.=-40°C
0.50
0.00
0
0.5
1
1.5
STBY Voltage (V)
Fig. 100 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
-40
VIN=3.8V
STBY=0V
-15
10
35
60
85
Temp. (°C)
Fig. 103 IGND vs Temp (STBY)
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15/29
2011.01 - Rev.C
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