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LP2951ACS-3.3 Datasheet(PDF) 10 Page - Sipex Corporation

Part # LP2951ACS-3.3
Description  100 mA Low Dropout Voltage Regulators
PDF  13 Pages
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

LP2951ACS-3.3 Datasheet(HTML) 10 Page - Sipex Corporation

Back Button LP2951ACS-3.3 Datasheet HTML 5Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 6Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 7Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 8Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 9Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 10Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 11Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 12Page - Sipex Corporation LP2951ACS-3.3 Datasheet HTML 13Page - Sipex Corporation  
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Rev. 8/10/01
LP2950/51 100mA Low Dropout Voltage Regulators
©Copyright 2001 Sipex Corporation
10
LP2950/LP2951
TYPICAL APPLICATIONS (continued)
100k
Ω
SENSE
SD
V OUT
GND
+V IN
3
8
1
1
µF
+
4
400kΩ
120k
Ω
1.5k
Ω
6V
SEALED
LEAD-
ACID
BATTERY
SOURCE
FB
FOR 5.5 V
+
1N457
2
20k
Ω
NI-CAD
BACKUP
BATTERY
MEMORY V+
MAIN V+
SPX385
LP2951
GND
4
3
5
8
2
1
7
6
SD
TAP
FB
+VIN
SENSE
VOUT
ERROR
______
RESET
100k
100k
100k
1k
100k
10k
20k
1k
39k
39k
C3
C1
C2
C4
1%
1%
1%
1%
6V
LEAD-
ACID
BATTERY
R3
<6.2V**
<5.8V**
<6.0V**
-
+
+
+
+
-
-
-
Ω ..
Ω ..
Ω ..
Ω ..
Ω ..
Ω ..
Ω ..
Ω ..
Ω ..
Ω ..
+V
OUT = 5V
1uF
+
* OPTIONAL LATCH OFF WHEN DROPOUT OCCURS. ADJUST R3 FOR C2 SWITCHING WHEN
VIN IS 6.0V
* OUTPUTS GO LOW WHEN V IN DROPS BELOW DESGNATED THRESHHOLDS
LP2951
Figure 5. Low Battery disconnect
Figure 6. Regulator with State-of Charge Indicator



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