LP2951-4.8BM Micrel Semiconductor, LP2951-4.8BM Datasheet - Page 12

• Manufacturer Part Number: LP2951-4.8BM
• Description: 100mA Low-Dropout Voltage Regulator
• Manufacturer: Micrel Semiconductor

LP2950/2951
RESET
470k
470k
Latch Off When Error Flag Occurs
5
3
SD
ERROR
LP2951
+V IN
+V IN
GND
4
8
V
+
OUT
FB
6V
LEAD-
ACID
BATTERY
C1-C4
LP339
1
7
Regulator with State-of-Charge Indicator
39k
R 1
R 2
–
C4
+
V OUT
1%
1%
1%
1%
R 3
+
RESET
1µF
39k
100
k
1
k
1
k
10k
20k
5
3
SD
ERROR
3-46
–
+
–
+
–
+
C1
C2
C3
+V IN
GND
4
8
LP2951
4
*OPTIONAL LATCH OFF WHEN DROP OUT OCCURS. ADJUST R3 FOR C2
**OUTPUTS GO LOW WHEN V
SWITCHING WHEN V
100k
100k
100k
Open Circuit Detector for 4mA to 20mA Current Loop
SENSE
0.1µF
1N
4001
TAP
20mA
V
6
2
OUT
FB
<5.8V**
<6.0V**
<6.2V**
1
7
IN
IS 6.0V
+V OUT = 5V
MIC2951
+
GND
V IN
IN
1 F
MIN. VOLTAGE
8
4
DROPS BELOW DESIGNATED THRESHOLDS.
V
OUT
1N457
FB
1
7
4V
4.7mA
1
2
360
+5V
February 1999
OUTPUT*
* HIGH FOR
I < 3.5mA
L
4
5
Micrel