l4948 STMicroelectronics, l4948 Datasheet - Page 3

• Manufacturer Part Number: l4948
• Description: Quad Voltage Regulator With Inhibit And Reset
• Manufacturer: STMicroelectronics

ELECTRICAL CHARACTERISTICS (V
C
O
Symbol
V
V
= 10 F max; T
S
S
V
V
V
V
V
V
V
V
V
I
-V
-V
O1
Q
O1
O1
O1
O2
I
O2
L
L
O1
O1
O2
Q
O1
O2
Output Voltage
Load Regulation
Quiescent Current ( I
Dropout Voltage
Current Limit (Foldback) note1
Max Bat.Trans.
Rev. Voltage Trans.
Rev. Voltage .
Ripple rejection
Line Regulation
Output Noise
Output Voltage
Load Regulation
Quiescent Current ( I
Dropout Voltage
Current Limit (Foldback) note1
Max Bat.Trans.
V
O1
amb
across V
= -40 to 85 C, unless otherwise specified.)
Parameter
S
range
S
S
)
)
S
= 10.5 to 16V; I
I
11V < V
I
V
V
I
V
R
Ramp V
Hold V
Ramp V
T
all temps
V
Check V
V
f
I
I
f
I
I
V
Check Output for AC noise
using a 100KHz LP filter
Check Output for AC noise
using an A weighted filter (20-
20KHz)
I
I
V
V
I
set V
set V
V
R
Ramp V
Hold V
Ramp V
T
all temps
O1
O1
O1
O
O1
O3
O
O1
O3
O2
O2
O2
amb
amb
S
S
O1
S
S
S
S
S
O2
O
O
= 1KHz; 1V
= 10KHz; 1V
= 14V; I
= -35V; t
= -15V; R
= 11V to 26V
= 14V; I
= 14V; I
= 300mA; T
= 6 to 300mA
= 300mA
= 100
= 180mA; I
= 400mA; I
= 180mA; I
= 400mA; I
= 400mA; T
= 8 to 400mA
= 400mA
= 100
=14V ; I
= 0V
= 0V
= 25 C;
S
S
= 25 C;
S
= V
= V
S
S
S
Test Condition
S
S
S
O1
at 60V for 10ms
at 60V for 10ms
from60 to 14V in 3-5ms;
from60 to 14V in 3-5ms;
from 14 to 60V in 3-5ms
from 14 to 60V in 3-5ms
< 16V all temps
, T
O2
O2
O1
O2
O2
O1
amb
+1V; T
+1.5V;all temps
O
pp
= 6mA;
= 8mA;
pp
= 400mA;
O4
O4
= 100
O2
O2
all temps
AC ; V
1ms; R
amb
= 300mA;
amb
AC ; V
O1
= 25 C;
= 40mA;
= 40mA;
= 200mA
= 200mA
= 25 C;
= 25 C;
T
amb
= 6mA, I
all temps
S
amb
S
O
=14V
all temps
=14V
= 25 C;
= 100
= 25 C;
;
;
O2
= 8mA, I
Min.
7.75
7.60
7.75
7.60
360
-0.4
480
9.7
9.5
9.7
9.5
9.7
9.5
50
50
O3
Typ.
10
10
10
10
10
10
= 4mA; I
8
8
8
8
Max.
10.3
10.5
10.3
10.5
10.3
10.5
8.25
8.40
8.25
8.40
150
400
600
800
400
200
150
400
600
960
10
30
50
10
35
11
2
1
9
2
O4
= 0.4mA;
L4948
Unit
mV
mA
mA
mV
mV
mA
mV
mV
mA
mA
mV
mV
mA
dB
dB
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
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