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參數資料
| 型號： | LX8942 |
| 廠商： | Microsemi Corporation |
| 英文描述： | Low Dropout Dual Regulator |
| 中文描述： | 低壓差穩(wěn)壓雙 |
| 文件頁數： | 3/8頁 |
| 文件大?。?/td> | 240K |
| 代理商： | LX8942 |
LX8942
P
RODUCTION
D
ATA
S
HEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright
2005
Rev. 1.2, 2006-01-20
W
M
.
C
Low Dropout Dual Regulator
TM
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 and the following test conditions: T
A
= 25°C, V
IN
= 14V, I
O1
= 50mA for V
OUT1
and 10mA for V
SB
and are for DC
characteristics only. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the
ambient temperature.
LX8942
Typ
Parameter
Symbol
Test Conditions
Min
Max
Units
`
VOLTAGE OUTPUT (V
OUT1
Output Voltage (NOTE 1)
V
OUT1
9V < V
IN
< 26V, I
O1
< 1000mA
9V < V
IN
< 16V, I
O1
= 5mA
9V < V
IN
< 26V, I
O1
= 5mA
5mA < I
O1
< 1000mA
500mA
DC
and 10mA
RMS
, 100Hz – 10kHz
I
O1
< 10mA, No Load on Standby
I
O1
= 500mA, No Load on Standby
I
O1
= 750mA, No Load on Standby
7.6
8.0
4
10
10
200
2
40
90
100
8.4
25
50
50
100
V
mV
mV
mV
m
mA
mA
mA
μV
RMS
mV /
1000hr
dB
V
V
A
Line Regulation
Load Regulation
Output Impedance
Quiescent Current
Output Noise Voltage
10Hz – 100kHz
Long Term Stability
20
Ripple Rejection
F
O1
= 120Hz
I
O1
= 500mA
I
O1
= 1000mA
66
0.45
0.7
1.8
0.60
1.2
Dropout Voltage
Current Limit
Maximum Operational Input
Voltage
Maximum Line Transient
ON / OFF Switch
ON / OFF Switch
STANDBY OUTPUT (V
SB
) SECTION
Output Voltage (Note 1)
Line Regulation
1.0
V
IN
Double Battery
26.5
31
V
V
IN
I
IH
I
IL
V
O1
< 9V
I
O1
= 10mA, Pin 4 = 2.4V
I
O1
= 10mA, Pin 4 = 0.4V
60
-10
70
V
μA
μA
10
`
V
SB
6V < V
IN
< 26V, I
SB
< 60mA
6V < V
IN
< 26V
1mA < I
SB
< 35mA
1mA < I
SB
< 60mA
1mA
DC
and 1mA
RMS
, 100Hz – 10kHz
I
SB
< 10mA, V
OUT1
OFF
10Hz – 100kHz
4.75
5.0
4
10
25
1
1.2
300
5.25
50
25
50
3
V
mV
mV
mV
mA
μV
RMS
mV /
1000hr
dB
V
mA
V
Load Regulation
Output Impedance
Quiescent Current
Output Noise Voltage
Long Term Stability
20
Ripple Rejection
Dropout Voltage
Current Limit
Maximum Line Transient
Note 1: The Temperature Extremes are Guaranteed but not 100% Production Tested.
F
SB
= 120Hz
I
SB
< 60mA
4.75V < V
SB
< 6V
66
0.55
100
70
0.70
60
60
V
IN
E
L
E
C
T
R
I
C
A
L
S
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