BD8961NV ROHM Co. Ltd., BD8961NV Datasheet - Page 3

• Manufacturer Part Number: BD8961NV
• Description: Low Noise Step-down Switching Regulator
• Manufacturer: ROHM Co. Ltd.

●Characteristics data【BD8961NV】
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
3.35
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.2
1.1
0.9
0.8
1
-25
2.7
-25
0
V
I
Ta=25℃
OUT
VCC=5V
OUT
Ta=25℃
Io=2A
VCC=5V
Io=0A
Fig. 16 Transient response
3.1
0
1
0
Fig.9 Ta-R
Io=1A→2A(10μs)
INPUT VOLTAGE:V
INPUT VOLTAGE:V
Fig.12 V
3.5
TEMPERATURE:Ta[ ℃ ]
TEMPERATURE:Ta[℃]
Fig.3 V
Fig. 6 Ta-V
25
25
PMOS
2
3.9
CC
CC
ONN
4.3
-V
50
-F
50
OUT
3
, R
OUT
OSC
CC
CC
ONP
4.7
[V]
[V]
NMOS
75
VCC=5V
75
Ta=25℃
100mV
4
5.1
100
100
5.5
5
100
2.0
1.5
1.0
0.5
0.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
90
80
70
60
50
40
30
20
10
0
10
-25
0
V
CC
V
VCC=5V
V
Ta=25℃
I
VCC=5V
Ta=25℃
VCC=5V
OUT
=PV
OUT
OUT
Fig.13 Soft start waveform
Fig.17 Transient response
=EN
1
OUTPUT CURRENT:I
0
CC
Fig.4 V
TEMPERATURE:Ta[℃]
EN VOLTAGE:VEN[V]
Io=2A→1A(10μs)
Fig.10 Ta-V
100
Fig.7 Efficiency
25
2
3/15
EN
-V
1msec
50
OUT
3
EN
1000
OUT
VCC=5V
Ta=25℃
Io=0A
[mA]
VCC=5V
75
Ta=25℃
110mV
4
Io=0A
100
10000
5
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
400
350
300
250
200
150
100
5.0
4.0
3.0
2.0
1.0
0.0
50
0
-25
-25
0
V
SW
VCC=5V
VCC=5V
Ta=25℃
OUT
VCC=5V
Fig.14 SW waveform Io=10mA
0
1
0
OUTPUT CURRENT:I
TEMPERATURE:Ta[℃]
TEMPERATURE:Ta[℃]
Fig.5 I
Fig.8 Ta-F
Fig.11 Ta-I
25
25
2
OUT
-V
50
50
OSC
3
CC
OUT
OUT
VCC=5V
Ta=25℃
75
75
[A]
4
100
100
5