BD9132MUV Datasheet, PDF (3/17 Pages) Rohm – Output 2A or More High Efficiency Step-down Switching Regulator with Built-in Power MOSFET

●Characteristics data【BD9132MUV】
2.0
【VOUT=1.2V】
1.6
1.2
0.8
0.4
0.0
0
Ta=25℃
Io=3A
1
2
3
4
5
INPUT VOLTAGE:VCC[V]
Fig.3 Vcc - VOUT
1.22
【VOUT=1.2V】
1.21
1.20
1.19
VCC=5V
Io=0A
1.18
-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=3.3V
0
-40 -20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig.9 Ta – RONN, RONP
1.1
1
0.9
0.8
0.7
2.7
Ta=25℃
3.4
4.1
4.8
5.5
INPUT VOLTAGE:VCC[V]
Fig.12 Vcc - Fosc
【PWM
VOUT=1.2V】
SW
2.0
【VOUT=1.2V】
1.6
1.2
0.8
0.4
0.0
0
100
VCC=5V
Ta=25℃
Io=0A
1
2
3
4
5
EN VOLTAGE:VEN[V]
Fig.4 VEN - VOUT
90
80
70
【VOUT=1.8】
【VOUT=1.5】
60
【VOUT=1.2】
50
【VOUT=1.0】
40
VCC=5V
Ta=25℃
30
1
2.0
1.8
1.6
1.4
1.2
10
100
1000
OUTPUT CURRENT:IOUT[mA]
Fig.7 Efficiency
10000
1.0
0.8
0.6
0.4
0.2
0.0
-40
VCC=5V
-20 0 20 40 60 80 100
TEMPERATURE:Ta[℃]
Fig.10 Fig.11 Ta - VEN
【VOUT=1.2V】
VCC=PVCC
=EN
2.0
【VOUT=1.2V】
1.6
1.2
0.8
0.4
0.0
0
1200
VCC=5V
Ta=25℃
12345678
OUTPUT CURRENT:IOUT[A]
Fig.5 IOUT - VOUT
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
【SLLM
VOUT=1.2V】
SW
VOUT
VCC=5V
Ta=25℃
Io=0A
VOUT
VCC=5V
Ta=25℃
Fig.13 Soft start waveform
【VOUT=1.2V】
VOUT
Fig.14 SW waveform Io=10mA
【VOUT=1.2V】
VOUT
VOUT
IOUT
VCC=5V
Ta=25℃
Fig.15 SW waveform Io=3A
IOUT
VCC=5V
Ta=25℃
Fig. 16 Transient Response
Io=1→3A(10μs)
3/16
VCC=5V
Ta=25℃
Fig.17 Transient Response
Io=3→1A(10μs)