bd4912 ROHM Co. Ltd., bd4912 Datasheet - Page 5

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

Fig.11 AUDIO Ripple Rejection Ratio
60
30
0.6
0.4
0.2
10
0
8
6
4
2
0
0
Fig.14 P.CON Dropout Voltage
10
0
0
Fig.17 AM Line Regulation
From the left,
50
SUPPLY VOLTAGE:Vcc1,2 [V]
Ta=-40 ℃
Ta=85 ℃
Ta=25 ℃
OUTPUT CURRENT:Io [mA]
100
Ta=25 ℃
10
(I
100
(I
FREQUENCY:f [Hz]
From the left,
O
O
= 200 mA)
Ta=85 ℃
Ta=-40 ℃
= No load)
Ta=25 ℃
Ta=85 ℃
150
1000
20
200
10000
250
Ta=-40 ℃
30
300
100000
350
40
8.3
8.2
8.1
8.0
7.9
10
Fig.12 AUDIO Output Voltage vs
15
10
8
6
4
2
0
5
0
-60
Fig.15 P.ANT Load Regulation
0
0
Fig.18 AM Load Regulation
AMBIENT TEMPERATURE:Ta [℃]
From the left,
From the left,
OUTPUT CURRENT:Io [mA]
10
OUTPUT CURRENT:Io [mA]
-20
Ta=-40 ℃
Ta=85 ℃
Ta=25 ℃
200
Ta=-40 ℃
Ta=85 ℃
Ta=25 ℃
Temperature
5/16
20
20
400
30
60
600
40
100
800
50
Fig.13 P.CON Load Regulation
Fig.16 P.ANT Dropout Voltage
0.5
0.4
0.3
0.2
0.1
0.5
0.4
0.3
0.2
0.1
15
10
0
5
0
0
0
0
0
Fig.19 AM Dropout Voltage
(V
OUTPUT CURRENT:Io [mA]
CC
5
OUTPUT CURRENT:Io [mA]
OUTPUT CURRENT:Io [mA]
Ta=25 ℃
1 = V
Ta=25 ℃
From the left,
100
200
10
Ta=-40 ℃
Ta=85 ℃
Ta=25 ℃
Ta=85 ℃
CC
Ta=85 ℃
2 = 7.5 V)
15
200
400
Ta=-40 ℃
Ta=-40 ℃
20
300
600
25