l4948 STMicroelectronics, l4948 Datasheet - Page 4

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

L4948
ELECTRICAL CHARACTERISTICS (continued)
4/9
Symbol
V
V
S
S
V
V
V
V
V
V
V
V
V
V
V
V
-V
-V
I
O2
O2
O3
I
O3
O3
O3
O4
I
L
L
O2
O3
O3
Q
O4
O4
Q
O3
O4
Rev. Voltage Trans.
Rev. Voltage .
Ripple rejection
Line Regulation
Output Voltage
Line Regulation
Load Regulation
Quiescent Current ( I
Dropout Voltage
Current Limit (Foldback) note 1
Max Bat.Trans.
Rev. Voltage Trans.
Rev. Voltage .
Ripple rejection
Output Noise
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Dropout Voltage
Current Limit (Foldback) note 1
V
O2
across V
Parameter
S
range
S
)
V
Check V
all temps
V
f
I
I
f
I
I
V
I
V
I
V
V
I
set V
set V
V
R
Ramp V
Hold V
Ramp V
T
V
Check V
all temps
V
f
I
I
f
Check Output for AC noise
using a 100KHz LP filter
Check Output for AC noise
using an A weighted filter (20-
20KHz)
I
V
I
V
V
I
set V
set V
V
O
O1
O3
O
O1
O3
O3
O3
O3
O
O1
O3
O
O4
O4
O4
amb
S
S
S
S
S
S
O3
S
S
S
S
S
O4
O
= 1KHz; 1V
= 10KHz; 1V
= 1KHz; 1V
= 10KHz; 1V
= -35V; R
= -15V; t = 30s; R
= 10.5V to 26V
= 14V; I
= 14V; I
= 7V to 26V
= 4 to 600mA
= 14V; I
= -35V; t < 1ms; R
= -15V; R
= 7V to 26V
= 0.4 to 100mA
= 14V; I
= 180mA; I
= 400mA; I
= 180mA; I
= 400mA; I
= 600mA; T
= 600mA
= 100
= 180mA; I
= 400mA; I
= 100mA; T
= 100mA
= 0V
= 0V
S
S
= 25 C;
S
S
= V
= V
S
= V
= V
S
Test Condition
S
O2
O3
at 60V for 10ms
from60 to 14V in 3-5ms;
from 14 to 60V in 3-5ms
, standard T
, standard T
O3
O3
O4
O4
O3
O4
O3
O4
+1V; T
+1.5V;all
+0.5V; T
+0.8V;all temps
O
pp
pp
O
= 4mA;
= 2mA;
pp
= 600mA;
pp
= 100mA;
O4
O4
O4
= 100
O2
O2
all temps
O2
= 100
AC ; V
AC ; V
amb
amb
AC ; V
AC ; V
= 40mA;
= 40mA;
= 40mA;
= 200mA
= 200mA
= 200mA
= 25 C;
= 25 C;
amb
S
S
amb
amb
amb
O
S
S
=14V
=14V
O
= 100
=14V
= 25 C;
all temps
all temps
t
=14V
= 100
= 25 C;
= 25 C;
= 25 C;
1ms
;
;
;
Min.
7.75
7.60
4.85
4.75
4.85
4.75
4.85
4.75
4.85
4.75
-0.4
720
-0.4
150
50
50
50
50
Typ.
8
8
5
5
5
5
5
5
5
5
Max.
1440
8.25
8.40
5.15
5.25
5.15
5.25
5.15
5.25
5.15
5.25
100
400
600
400
200
450
400
600
300
40
40
40
40
20
80
1
8
6
2
1
Unit
mV
mV
mV
mA
mA
mV
mV
mA
mV
mV
mA
mV
mV
mA
dB
dB
dB
dB
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A