BD9134MUV_0909 Datasheet, PDF (4/18 Pages) Rohm – Output 2A or More High-efficiency Step-down Switching Regulator with Built-in Power MOSFET

BD9134MUV
●Characteristics data
4.0
【VOUT=3.3V】
3.0
2.0
1.0
Ta=25℃
Io=3A
0.0
0
1
2
3
4
5
INPUT VOLTAGE:VCC[V]
Fig.3 Vcc - VOUT
Technical Note
5.0
【VOUT=3.3V】
4.0
3.0
2.0
1.0
0.0
0
VCC=5V
Ta=25℃
Io=0A
1
2
3
4
5
EN VOLTAGE:VEN[V]
Fig.4 VEN - VOUT
4.0
【VOUT=3.3V】
3.0
2.0
1.0
VCC=5V
Ta=25℃
0.0
0 12 3 45 67 8
OUTPUT CURRENT:IOUT[A]
Fig.5 IOUT - VOUT
3.35
3.34 ^{【VOUT=3.3V】}
3.33
3.32
3.31
3.30
3.29
3.28
3.27
VCC=5V
3.26
Io=0A
3.25
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig. 6 Ta - VOUT
150
125
100
75
High side
50
Low side
25
VCC=5V
0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig.9 Ta – RONN, RONP
100
90
80
70
60
50
40
30
20
10
0
1
【VOUT=3.3V】
VCC=5V
Ta=25℃
10
100
1000
OUTPUT CURRENT:IOUT[mA]
10000
Fig.7 Efficiency
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
VCC=5V
0.2
0.0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig.10 Fig.11 Ta - VEN
1200
1000
800
600
400
200
VCC=5V
0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig.8 Ta - Fosc
400
350
300
250
200
150
100
50
VCC=5V
0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig.11 Ta - Icc
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4/17
2009.09 - Rev.B