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LP2951-4.8 View Datasheet(PDF) - Micrel

Part NameDescriptionManufacturer
LP2951-4.8 100mA Low-Dropout Voltage Regulator Micrel
Micrel Micrel
LP2951-4.8 Datasheet PDF : 14 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
LP2950/2951
OUTPUT
VOLTAGE
4.75V
*
ERROR NOT
VALID
*
NOT
VALID
INPUT
VOLTAGE
5V
1.3V
* SEE APPLICATIONS INFORMATION
Figure 1. ERROR Output Timing
Typical Applications
Micrel
100k
+VIN
8
VIN
*SEE APPLICATIONS
INFORMATION
VOUT = V REF
x (1 +
R1
R2
)
VOUT
ERROR
OUTPUT
5 ERROR
VOUT 1
LLPP22995511
1.2 30V
SHUTDOWN
INPUT
3
SD
OFF
GND
ON
4
FB
7
1.23V
3.3µF
R1 100
pF
NOTE: PINS 2 AND 6 ARE LEFT OPEN
VREF
R2
Figure 2. Adjustable Regulator
+VIN
8
ERROR
OUTPUT
+VIN
5 ERROR VOUT 1 *VOUT VIN
LP2951
SHUTDOWN 3
SO
INPUT
GND FB
4
7
*MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 40mV TO 400mV,
DEPENDING ON LOAD CURRENT. CURRENT LIMIT IS TYPICALLY 160mA.
*SLEEP
INPUT
+V IN
C-MOS
GATE
870 23
47k
8
+V IN
ERROR
OUTPUT
5 ERROR
VOUT 1
MLPIC2299551
SHUTDOWN 3
INPUT
SD
OFF
GND
FB
ON
4
7
470 k
+V OUT
2N3906
100pF
200k
1% +
100k
3.3µF
1%
100k
*HIGH INPUT LOWERS VOUT TO 2.5V
Wide Input Voltage Range Current Limiter
5 V Regulator with 2.5 V Sleep Function
3-44
February 1999
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