參數資料
型號： LX1882EVALKIT
英文描述： Charge Pump
中文描述： 電荷泵
文件頁數： 5/13頁
文件大小： 309K
代理商： LX1882EVALKIT
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright
2000
Rev. 1.0c, 2002-08-01
W
M
.
C
LX1882
Charge Pump Doubler with Linear Regulator
P
RODUCTION
D
ATA
S
HEET
I N T E G R A T E D P R O D U C T S
E L E C T R I C A L C H A R A C T E R I S T I C S
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0
°
C
≤
T
A
≤
70
°
C except where
otherwise noted. Test conditions: SHDN =V
IN
=3V, C1=0.22μF, C2 = C3 = C4 = 4.7μF
LX1882-xx
Typ
1.8
2.0
Parameter
Symbol
Test Conditions
Min
Max
4.4
4.4
Units
Operating Voltage
V
IN
LX1882-00
LX1882-33
V
I
VIN
Shutdown Current
SHDN =0V
1
5
μA
I
VIN
Operating Current
I
OUT
=0mA, Burst Mode Operation
250
400
μA
FB Input Current
FB Voltage
Regulated Output Voltage
V
OUT
Temperature Coefficient
Charge Pump Oscillator Frequency
FB=1.175V
LX1882-00 only; I
OUT
=1mA
LX1882-33; I
OUT
=1mA
T
A
=25oC
I
OUT
> 200μA, V
IN
=1.8V to 4.4V
V
IN
=1.8V, I
OUT
=10mA
V
IN
=3V, I
OUT
=10mA
V
IN
=4.4V, I
OUT
=10ma
LX1882-00; I
OUT
=10ma, V
OUT
=2.7V
LX1882-33; I
OUT
=10ma, V
OUT
=3.3V
I
OUT
=10mA, T
A
=25oC
-50
1.15
3.23
480
50
1.20
3.37
620
30
20
20
160
120
nA
V
V
ppm
kHz
V
FB
V
OUT
F
OSC
1.175
3.30
±150
550
22
16
10
100
75
350
CPO (Charge Pump Output) Output
Resistance
R
CPO
V
OUT
Dropout Voltage (Note 1)
V
mV
V
OUT
Enable Time
μS
V
OUT
Line Regulation
V
OUT
(V
IN
)
V
OUT
(I
OU
T
)
V
IN
=3V to 4V, I
OUT
=0mA
17
30
mV
I
OUT
=1mA to 10mA
I
OUT
=1ma to 50mA
3
40
10
mV
mV
V
OUT
Load Regulation
SHDN =0V, Resistance Measured to GND,
V
IN
=1.8V
120
350
V
OUT
Shutdown Resistance
SHDN =0V, Resistance Measured to GND,
V
IN
=4.4V
50
150
SHDN Input Threshold
V
IN
=1.8V to 4.4V
0.4
1
1.6
V
SHDN =V
IN
-1
1
μA
SHDN Input Current
SHDN =0V
-1
1
μA
Note 1: Dropout voltage is defined as the minimum input to output differential required to maintain regulation.
E
L
E
C
T
R
I
C
A
L
S
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