BD9130EFJ Datasheet, PDF (3/15 Pages) Rohm – Output 2A or More High-efficiency Step-down Switching Regulator with Built-in Power MOSFET

BD9130EFJ
●Characteristics data(Reference data)
3.0
【VOUT=2.5V】
2.5 ^Ta=25℃
Io=0A
2.0
1.5
1.0
0.5
0.0
0
【VOUT=1.8V】
Ta=25℃
Io=2A
1
2
3
4
5
INPUT VOLTAGE:VCC[V]
Fig.3 Vcc-Vout
2.0
【VOUT=1.8V】
1.5
1.0
0.5
0.0
0
VCC=3.3V
Ta=25℃
1
2
3 ^Io=4^0A
5
EN VOLTAGE:VEN[V]
Fig.4 Ven-Vout
Technical Note
3.0
2.5
2.0
1.5
1.0 【VOUT=2.5V】
VCC=5V
0.5 ^Ta=25℃
【VOUT=1.8V】
VCC=3.3V
Ta=25℃
0.0
0
1
2
3
4
5
OUTPUT CURRENT:IOUT[A]
Fig.5 Iout-Vout
1.85
1.84 ^{【VOUT=1.8V】}
1.83
VCC=3.3V
1.82
Io=0A
1.81
1.80
1.79
1.78
1.77
1.76
1.75
-25
0
25
50
75
100
TEMPERATURE:Ta[℃]
100
90
80
70
60
50
40
30
20
10
0
1
【VOUT=1.8V】
VCC=3.3V
Ta=25℃
【VOUT=2.5V】
VCC=5V
Ta=25℃
10
100
1000
OUTPUT CURRENT:IOUT[mA]
10000
Fig. 6 Ta-VOUT
Fig.7 Efficiency
1.20
1.15 ^VCC=3.3V
1.10
1.05
1.00
0.95
0.90
0.85
0.80
-25
0
25
50
75
100
TEMPERATURE:Ta[℃]
Fig.8 Ta-FOSC
0.40
VCC=3.3V
0.35
0.30
0.25
PMOS
0.20
0.15
NMOS
0.10
0.05
0.00
-25
0
25
50
75
100
TEMPERATURE:Ta[℃]
Fig.9 Ta-RONN, RONP
2.0
VCC=3.3V
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-25
0
25
50
75
100
TEMPERATURE:Ta[℃]
Fig.10 Ta-VEN
300
270 ^VCC=3.3V
240
210
180
150
120
90
60
30
0
-25
0
25
50
75
100
TEMPERATURE:Ta[℃]
Fig.11 Ta-ICC
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3/14
2009.05 - Rev.A