bd4912 ROHM Co. Ltd., bd4912 Datasheet - Page 3

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

Electrical characteristics (Unless otherwise specified, Ta = 25°C; V
(SEL1 > 3.5 V)
Dropout Voltage (P.CON) 3
Peak Output Current
(SEL1 > 7.0 V)
Dropout Voltage (P.ANT) 4
Peak Output Current
(SEL2 > 3.5 V)
Output voltage (AM) 5
Dropout Voltage
Peak Output Current
Ripple Rejection Ratio
(SEL2 > 2.0 V)
Dropout Voltage (SW5V)
Peak Output Current
(SEL1 > 1.5 V)
Output voltage (ILM) 7
Dropout Voltage
Peak Output Current
Ripple Rejection Ratio
Input (SEL1)
Standby Level
ILM ON
ILM, P-CON ON
ILM, P-CON, P-ANT ON
SEL1 Input Impedance
Input (SEL2)
Standby Level
AUDIO, SW5V ON
AUDIO, SW5V, AM ON
SEL2 Input Impedance
Overvoltage Protection
Threshold
This product is not designed for protection against radioactive rays.
Use Peak Output Current less than Limits Min. values.
Parameter
Symbol
Vth1-1
Vth1-2
Vth1-3
Vth1-4
Vth2-1
Vth2-2
Vth2-3
∆V
∆V
∆V
∆V
∆V
R.R5
R.R7
Vovp
Rin1
Rin2
V
V
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
O
O
3
4
5
6
7
5
7
3
4
5
6
7
Min.
350
300
200
100
100
7.5
9.9
1.5
3.5
7.0
2.0
3.5
—
—
—
25
45
—
30
—
40
—
—
27
Limits
Typ.
0.15
10.3
7.9
0.4
0.5
0.4
0.4
30
—
—
—
—
—
—
—
—
—
55
50
—
—
—
—
—
3/16
Max.
12.0
V
10.7
1.0
3.0
5.0
1.0
3.0
8.3
0.7
0.3
0.8
0.7
0.7
33
—
—
—
—
—
—
—
—
—
DD
CC
1= V
CC
Unit
mA
mA
mA
mA
mA
kΩ
kΩ
dB
dB
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
2 = 14.4 V)
I
V
I
V
I
I
V
f = 100 Hz, VRR = -10 dBV,
I
I
V
I
I
V
f = 100 Hz, VRR = -10 dBV,
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
3 = 350 mA, V
4 = 300 mA, V
5 = 25 mA, V
5 = 25 mA, V
6 ＝ 30 mA, V
7 = 200 mA, V
7 = 200 mA, V
= 25 mA
= 200 mA
3 ≥ 13.7 V
4 ≥ 13.7 V
5 ≥ 7.5 V
6 ≥ V
7 ≥ 9.9 V
DD
-0.2V
Condition
CC
CC
CC
CC
CC
CC
DD
1 = 10 V to 18 V
1-V
1-V
1-V
1 = 12 V to 18 V
1-V
-V
O
O
O
O
5
O
6
3
4
7