l4946 STMicroelectronics, l4946 Datasheet - Page 3

• Manufacturer Part Number: l4946
• 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
V
V
I
-V
-V
O1
Q
O1
O1
O1
O2
I
O2
O2
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
(by design only)
Line Regulation
Output Voltage
Load Regulation
Quiescent Current ( I
Dropout Voltage
Current Limit (note1)
Max Bat.Trans.
Rev. Voltage Trans.
Rev. Voltage .
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
V
Check V
V
f
I
I
f
I
I
V
I
I
V
V
I
V
R
Ramp V
Hold V
Ramp V
T
all temps
V
Check V
V
O1
O1
O1
O
O1
O3
O
O1
O3
O2
O2
O2
amb
S
S
O1
S
S
S
S
S
O2
S
S
O
O
= 120-10KHz; 1V
= 20-20KHz; 1V
= 14V; I
= -35V; t
= -15V; R
= 11V to 26V
= 14V; I
= -35V; t < 1ms; R
= -15V; t = 30s; R
= 14V; I
= 125mA;
= 5 to 125mA
= 125mA
= 100
= 90mA; I
= 75mA; I
= 90mA; I
= 75mA; I
= 250mA; T
= 5 to 250mA
= 250mA
= 100
=14V ; I
= 0V
= 0V
= 25 C;
S
S
S
S
Test Condition
S
S
S
O1
O2
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
,
, standard
O1
O2
O2
O1
O
O2
O4
O2
O4
= 5mA;
= 5mA;
= 250mA;
= 100
all temps
1ms; R
= 125mA;
amb
= 50mA;
= 50mA;
= 125mA
= 125mA
O1
pp
pp
AC ; V
T
all temps
= 25 C;
T
all temps
T
= 6mA, I
AC ; V
T
T
all temps
amb
T
amb
amb
amb
amb
O
O
amb
O
all temps
all temps
all temps
= 100
= 100
= 100
= 25 C;
= 25 C
= 25 C
S
= 25 C;
= 25 C;
;
;
= 25 C
S
=14V
=14V
O2
= 8mA, I
Min.
7.75
7.60
7.85
7.60
7.85
7.80
150
-0.4
300
-0.4
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
8
8
Max.
10.3
10.5
10.3
10.5
10.3
10.5
8.25
8.40
8.15
8.20
8.15
8.20
150
400
600
300
150
400
600
600
10
18
50
10
35
11
2
1
9
2
1
O4
= 0.4mA;
L4946
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
V
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