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SPX2951ACS-3.3 데이터 시트보기 (PDF) - Signal Processing Technologies
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SPX2951ACS-3.3
150mA Low Dropout Voltage Regulators
Signal Processing Technologies
SPX2951ACS-3.3 Datasheet PDF : 12 Pages
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SPX2950/SPX2951
TYPICAL APPLICATIONS (Continued)
+
120K
Ω
..
1.5K
Ω
..
6V
SEALED
LEAD-
FB
SPX385
ACID
BATTERY
SOURCE
FOR 5.5 V
400K
Ω
..
100K
Ω
..
1N457
3
SD
8
+V
IN
1
V
OUT
SPX2951
SENSE
2
GND
4
MAIN V-
+
1uF
MEMORY V+
20K
Ω
..
NI-CAD
BACKUP
BATTERY
Low Battery Disconnect
39k
Ω
-
C4
+
RESET
8
5
+V
IN
ERROR
2
SENSE
1
V
OUT
3
SD
SPX2951
7
FB
39k
Ω
GND
TAP
4
6
+V
OUT
=
5V
+
1
µ
F
1%
100k
Ω
6V
LEAD-
ACID
1%
BATTERY
1k
Ω
-
C1
+
-
C2
+
1%
1k
Ω
-
C3
+
10k
Ω
R
3
1%
20k
Ω
100k
Ω
100k
Ω
<5.8V**
100k
Ω
<6.0V**
<6.2V**
*OPTIONAL LATCH OFF WHEN DROPOUT OCCURS.
ADJUST R3 FOR C2 SWITCHING V
IN
IS 6.0V.
**OUTPUTS GO LOW WHEN V
IN
DROPS BELOW
DESIGNATED THRESHOLDS.
Regulator with State-of-Charge Indicator
Rev. 10/30/00
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