bd4912 ROHM Co. Ltd., bd4912 Datasheet - Page 6

• Manufacturer Part Number: bd4912
• Description: Dmos System Power Supply Ics With Low Current Consumption Now Available
• Manufacturer: ROHM Co. Ltd.

0.10
0.08
0.06
0.04
0.02
0.00
Fig.20 AM Ripple Rejection Ratio
0.8
0.6
0.4
0.2
80
60
40
20
0
0
Fig.23 SW5V Dropout Voltage
10
0
Fig.26 ILM Dropout Voltage
0
From the left,
(V
(V
Ta=-40℃
Ta=85℃
Ta=25℃
CC
OUTPUT CURRENT:Io [mA]
CC
OUTPUT CURRENT:Io [mA]
100
50
FREQUENCY:f [Hz]
(I
1 = V
1 = V
Ta=25℃
Ta=25℃
O
10
= 25 mA)
Ta=85℃
1000
Ta=85℃
CC
100
CC
2 = 9.9 V)
2 = 10 V)
Ta=-40℃
20
Ta=-40℃
10000
150
100000
200
30
Fig.27 ILM Ripple Rejection Ratio
8.1
8.0
7.9
7.8
7.7
80
60
40
20
12
10
0
8
6
4
2
0
10
-60
0
Fig.24 ILM Line Regulation
From the left,
AMBIENT TEMPERATURE:Ta [℃]
Fig.21 AM Output Voltage
SUPPLY VOLTAGE:Vcc1,2 [V]
Ta=-40℃
Ta=85℃
Ta=25℃
100
-20
10
(I
(I
FREQUENCY:f [Hz]
From the left,
O
vs Temperature
O
6/16
= 200 mA)
= No load)
Ta=-40℃
Ta=85℃
Ta=25℃
1000
20
20
10000
60
30
100000
100
40
10.5
10.4
10.3
10.2
10.1
12
10
8
6
4
2
0
8
6
4
2
0
0
-60 -40 -20
Fig.28 ILM Output Voltage
0
Fig.25 ILM Load Regulation
AMBIENT TEMPERATURE:Ta [℃]
From the left,
50
100
Fig.22 SW5V Load
OUTPUT CURRENT:Io [mA]
OUTPUT CURRENT:Io [mA]
vs Temperature
Ta=-40℃
Ta=85℃
Ta=25℃
100 150 200 250 300 350
Middle curve Ta=-40℃
Lower curve Ta=25℃
Regulation
Top curve Ta=85℃
200
0
From the top
20
300
40
60
400
80 100
500