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LX8942 Datasheet(PDF) 3 Page - Microsemi Corporation

Part No. LX8942
Description  Low Dropout Dual Regulator
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
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LX8942 Datasheet(HTML) 3 Page - Microsemi Corporation

   
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LX8942
PRODUCTION DATA SHEET
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
Low Dropout Dual Regulator
TM
®
ELECTRICAL CHA RACTERISTICS
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: TA = 25°C, VIN = 14V, IO1 = 50mA for VOUT1 and 10mA for VSB 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
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
VOLTAGE OUTPUT (VOUT1) SECTION
Output Voltage (NOTE 1)
VOUT1
9V < VIN < 26V, IO1 < 1000mA
7.6
8.0
8.4
V
9V < VIN < 16V, IO1 = 5mA
4
25
mV
Line Regulation
9V < VIN < 26V, IO1 = 5mA
10
50
mV
Load Regulation
5mA < IO1 < 1000mA
10
50
mV
Output Impedance
500mADC and 10mARMS, 100Hz – 10kHz
200
mΩ
IO1 < 10mA, No Load on Standby
2
mA
IO1 = 500mA, No Load on Standby
40
100
mA
IO1 = 750mA, No Load on Standby
90
mA
Quiescent Current
Output Noise Voltage
10Hz – 100kHz
100
µVRMS
Long Term Stability
20
mV /
1000hr
Ripple Rejection
FO1 = 120Hz
66
dB
IO1 = 500mA
0.45
0.60
V
Dropout Voltage
IO1 = 1000mA
0.7
1.2
V
Current Limit
1.0
1.8
A
Maximum Operational Input
Voltage
VIN
Double Battery
26.5
31
V
Maximum Line Transient
VIN
VO1 < 9V
60
70
V
ON / OFF Switch
IIH
IO1 = 10mA, Pin 4 = 2.4V
10
µA
ON / OFF Switch
IIL
IO1 = 10mA, Pin 4 = 0.4V
-10
µA
STANDBY OUTPUT (VSB) SECTION
Output Voltage (Note 1)
VSB
6V < VIN < 26V, ISB < 60mA
4.75
5.0
5.25
V
Line Regulation
6V < VIN < 26V
4
50
mV
1mA < ISB < 35mA
10
25
mV
Load Regulation
1mA < ISB < 60mA
25
50
mV
Output Impedance
1mADC and 1mARMS, 100Hz – 10kHz
1
Quiescent Current
ISB < 10mA, VOUT1 OFF
1.2
3
mA
Output Noise Voltage
10Hz – 100kHz
300
µVRMS
Long Term Stability
20
mV /
1000hr
Ripple Rejection
FSB = 120Hz
66
dB
Dropout Voltage
ISB < 60mA
0.55
0.70
V
Current Limit
60
100
mA
Maximum Line Transient
VIN
4.75V < VSB < 6V
60
70
V
Note 1: The Temperature Extremes are Guaranteed but not 100% Production Tested.


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