BD9152MUV Datasheet, PDF (4/18 Pages) Rohm – Output 1.5A or Less High Efficiency Step-down Switching Regulator with Built-in Power MOSFET

BD9152MUV
●Characteristics data【BD9152MUV】
3.5
Ta=25℃
3.0 Io=1.5A
2.5 【VOUT1=3.3V】
2.0
【VOUT2=1.2V】
1.5
1.0
0.5
0.0
0
1
2
3
4
5
INPUT VOLTAGE:VCC[V]
Fig.3 VCC – VOUT1,VOUT2
3.40
【VOUT1=3.3V】
3.35
3.30
3.25
VCC=5V
Io=0A
3.20
-40 -20 0 20 40 60 80
TEMPERATURE:Ta[℃]
Fig. 6 Ta-VOUT1
1.2
1.0
0.8
0.6
0.4
0.2
VCC=5V
0.0
-40 -20
0
20
40
60
80
TEMPERATURE:Ta[℃]
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[℃]
Fig.12 Ta－EN1,EN2
Technical Note
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
【VOUT1=3.3V】
【VOUT2=1.2V】
VCC=5V
Ta=25℃
Io=0A
1
2
3
4
5
EN VOLTAGE:VEN[V]
Fig.4 VEN - VOUT
1.25
【【VVOOUUTT22==11.2.2VV設】定】
1.23
1.20
1.18
VCC=5V
Io=0A
1.15
-40 -20 0 20 40 60 80
TEMPERATURE:Ta[℃]
Fig. 7 Ta-VOUT2
1.1
1
0.9
0.8
Ta=25℃
0.7
4.5
4.75
5
5.25
5.5
INPUT VOLTAGE:VCC[V]
Fig.10 VCC-Fosc
600
500
400
300
200
VCC=5V
100
0
-40 -20
0
20 40 60 80
TEMPERATURE:Ta[℃]
Fig.13 Ta－Icc
3.5
3.0 _{【VOUT1=3.3V】}
2.5
2.0 _{【VOUT2=1.2V】}
1.5
1.0
0.5
0.0
0
VCC=5V
Ta=25℃
1
2
3
4
OUTPUT CURRENT:IOUT[A]
Fig.5 IOUT - VOUT
100
90
80
70
60
50
40
30
20
10
0
10
【VOUT1=3.3V】
【VOUT2=2.5V】
【VOUT2=1.5V】
【VOUT2=1.2V】
VCC=5V
Ta=25℃
1^【00VOUT2=1.01V0^】00
OUTPUT CURRENT:IOUT[mA]
10000
Fig.8 Efficiency
200
VCC=5V PMOS
175
150
125
100
NMOS
75
50
25
0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig.11 Ta – RONN, RONP
VCC=5V,Ta=25℃
EN1=E2
VOUT1
VOUT2
Fig.14 Soft start wave form
(Io=0mA)
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4/17
2009.05 - Rev.A