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BD9150MUV Datasheet, PDF (4/19 Pages) Rohm – Output 1.5A or Less High Efficiency Step-down Switching Regulator with Built-in Power MOSFET | |||
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BD9150MUV
âCharacteristics dataãBD9150MUVã
3.5
3.0 Ta=25â
Io=1.5A
2.5
2.0 ãVOUT1=3.3Vã
1.5 ãVOUT2=1.2Vã
1.0
0.5
0.0
0
1
2
3
4
5
INPUT VOLTAGE:VCC[V]
Fig.3 Vcc - VOUT
3.40
ãVOUT1=3.3Vã
3.35
3.30
3.25
VCC=5V
Io=0A
3.20
-40 -20 0
20 40 60 80
TEMPERATURE:Ta[â]
Fig. 6 Ta - VOUT
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
ãVOUT1=3.3Vã
ãVOUT2=1.2Vã
VCC=5V
Ta=25â
Io=0A
1
2
3
4
5
EN VOLTAGE:VEN[V]
Fig.4 VEN - VOUT
1.25
ããVOVOUUT2T=21=.12.V2Vè¨ãå®ã
1.23
1.20
1.18
VCC=5V
Io=0A
1.15
-40 -20 0
20 40 60 80
T EM PER AT U R E:T a[â ]
Fig. 7 Ta - VOUT
Technical Note
3.5
3.0 ãVOUT1=3.3Vã
2.5
2.0
1.5 ãVOUT2=1.2Vã
VCC=5V
Ta=25â
1.0
0.5
0.0
0
1
2
3
4
OUTPUT CURRENT:IOUT[A]
Fig.5 IOUT - VOUT
100
90
80
70
60
50
40
30
20
10
0
10
ã ãVVOOUUTT12==32..35VVãã
ãVOUT2=1.5Vã
ãVOUT2=1.2Vã
VCC=5V
Ta=25â
100
1000
OUTPUT CURRENT:IOUT[mA]
Fig.8 Efficiency
10000
1.7
1.6
1.5
1.4
VCC=5V
1.3
-40 -20 0 20 40 60 80
TEMPERATURE:Ta[â]
Fig.9 Ta - Fosc
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40
VCC=5V
-20
0
20
40
60
80
TEMPERATURE:Ta[â]
Fig.12 Ta-VEN
1.7
1.6
1.5
1.4
1.3
4.5
4.75
5
5.25
5.5
INPUT VOLTAGE:VCC[V]
Fig.10 Vcc - Fosc
600
Ta=25â
500
400
300
200
VCC=5V
100
0
-40 -20
0
20 40 60 80
TEMPERATURE:Ta[â]
Fig.13 Ta-ICC
200
175 PMOS
150
125
NMOS
100
75
50 VCC=5V
25
0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[â]
Fig.11 Ta â RONN, RONP
VCC=5V,Ta=25â
EN1=E2
VOUT1
VOUT2
Fig.14 Soft start waveform
(Io=0mA)
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4/18
2009.05 - Rev.A
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