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L4925PD Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer L4925PD
Beschreibung VERY LOW DROP VOLTAGE REGULATOR
Hersteller STMicroelectronics
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Gesamt 8 Seiten
L4925PD Datasheet, Funktion
® L4925
VERY LOW DROP VOLTAGE REGULATOR
OPERATING DC SUPPLY VOLTAGE RANGE
6V TO 28V
TRANSIENT SUPPLY VOLTAGE UP TO 40V
EXTREMELY LOW QUIESCENT CURRENT
HIGH PRECISION OUTPUT VOLTAGE
OUTPUT CURRENT CAPABILITY UP TO
500mA
VERY LOW DROPOUT VOLTAGE LESS
THAN 0.6V
RESET CIRCUIT SENSING THE OUTPUT
VOLTAGE
PROGRAMMABLE RESET PULSE DELAY
WITH EXTERNAL CAPACITOR
THERMAL SHUTDOWN AND SHORT CIR-
CUIT PROTECTIONS
DESCRIPTION
The L4925 is a monolithic integrated 5V voltage
regulator with a very low dropout output and addi-
BLOCK DIAGRAM
Pentawatt
PowerSO20
ORDERING NUMBERS: L4925 (Pentawatt)
L4925PD (PowerSO20)
tional functions such as power-on reset and pro-
grammable reset delay time. It is designed for
supplying microcomputer controlled systems es-
pecially in automotive applications.
VS
CS
PREREGULATOR
5V
Vz
+
-
GND
REG
VREF
1.23V
Vz
2µ
RESET
L4925N
= 2V
VO
CT
RES
D95AT151
June 2000
1/8
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.






L4925PD Datasheet, Funktion
L4925
DIM.
A
C
D
D1
E
E1
F
F1
G
G1
H2
H3
L
L1
L2
L3
L4
L5
L6
L7
L9
M
M1
V4
MIN.
2.4
1.2
0.35
0.76
0.8
1
3.2
6.6
10.05
17.55
15.55
21.2
22.3
2.6
15.1
6
4.23
3.75
mm
TYP.
3.4
6.8
17.85
15.75
21.4
22.5
0.2
4.5
4
MAX.
4.8
1.37
2.8
1.35
0.55
1.19
1.05
1.4
3.6
7
10.4
10.4
18.15
15.95
21.6
22.7
1.29
3
15.8
6.6
MIN.
0.094
0.047
0.014
0.030
0.031
0.039
0.126
0.260
0.396
0.691
0.612
0.831
0.878
0.102
0.594
0.236
4.75 0.167
4.25 0.148
40° (typ.)
inch
TYP.
0.134
0.268
0.703
0.620
0.843
0.886
0.008
0.177
0.157
MAX.
0.189
0.054
0.110
0.053
0.022
0.047
0.041
0.055
0.142
0.276
0.409
0.409
0.715
0.628
0.850
0.894
0.051
0.118
0.622
0.260
0.187
0.167
OUTLINE AND
MECHANICAL DATA
Pentawatt V
A
B
C
L5
L
L1
L8
V V1 V
R
D
D1 L2
L3
V3
R
R
V4
E
M1
V
M
H3 H1
Dia.
L7
L6
V4
G G1
F1 F
H2
RESIN BETWEEN
LEADS
V4
L9
V
H2
F
E1
E
6/8

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