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PDF L4923 Data sheet ( Hoja de datos )

Número de pieza L4923
Descripción WITH RESET AND INHIBIT 5V.1A VERY LOW DROP REGULATOR
Fabricantes STMicroelectronics 
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No Preview Available ! L4923 Hoja de datos, Descripción, Manual

® L4923
5V–1A VERY LOW DROP REGULATOR
WITH RESET AND INHIBIT
. VERY LOW DROP (max. 0.9V at 1A) OVER
FULL OPERATING TEMPERATURE RANGE
(– 40 / + 125 °C)
. LOW QUIESCENT CURRENT (max 70 mA at
1 A) OVER FULL T RANGE
. PRECISEOUTPUT VOLTAGE(5V ± 4%) OVER
FULL T RANGE
. POWER ON-OFF INFORMATION WITH SET-
TABLE DELAY
. INHIBIT FOR REMOTE ON-OFF COMMAND
(active high)
. LOAD STANDBY CURRENT
. LOAD DUMP AND REVERSE BATTERY PRO-
TECTION
. SHORT CIRCUIT PROTECTION
. THERMAL SHUTDOWN
Heptawatt
ORDERING NUMBER : L4923
The device is internally protected against load
dumps transient of + 60 V, input overvoltage, re-
verse polarity, overheating and output short circuit :
thanks to these featuresthe L4923is very suited for
the automotive and industrial applications.
DE S CR IP TI O N
The reset function is very useful for power off and
power on information when supplying a microproc-
essor.
The L4923is a high currentmonolithic voltage regu-
lator with very low voltage drop (0.70 V max at 1 A,
TJ = 25 °C).
The inhibit function reduces drastically the con-
sumptionwhen no load current is required: typically
the standby current value is 300 µA.
BLOCK DIAGRAM
June 2000
1/6
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

1 page




L4923 pdf
DIM.
A
C
D
D1
E
E1
F
F1
G
G1
G2
H2
H3
L
L1
L2
L3
L4
L5
L6
L7
L9
M
M1
V4
Dia
MIN.
2.4
1.2
0.35
0.7
0.6
2.34
4.88
7.42
10.05
16.7
21.24
22.27
2.6
15.1
6
2.55
4.83
3.65
mm
TYP.
2.54
5.08
7.62
16.9
14.92
21.54
22.52
2.8
15.5
6.35
0.2
2.8
5.08
MAX.
4.8
1.37
2.8
1.35
0.55
0.97
0.8
0.9
2.74
5.28
7.82
10.4
10.4
17.1
MIN.
0.094
0.047
0.014
0.028
0.024
0.095
0.193
0.295
0.396
0.657
21.84
22.77
1.29
3
15.8
6.6
0.386
0.877
0.102
0.594
0.236
3.05 0.100
5.33 0.190
40° (typ.)
3.85 0.144
inch
TYP.
0.100
0.200
0.300
0.668
0.587
0.848
0.891
0.110
0.610
0.250
0.008
0.110
0.200
MAX.
0.189
0.054
0.110
0.053
0.022
0.038
0.031
0.035
0.105
0.205
0.307
0.409
0.409
0.673
0.860
0.896
0.051
0.118
0.622
0.260
0.120
0.210
0.152
L4923
OUTLINE AND
MECHANICAL DATA
Heptawatt V
A
C
L5
L
L1
D1
L2
L3
D
H3 H1
Dia.
L7
L6
L4
VV
E
M1
M
F
E E1
G G1 G2
H2
V4
L9
F
H2 F1
HEPTAMEC
5/6

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