LX8385-00ID Ver la hoja de datos (PDF) - Microsemi Corporation
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LX8385-00ID Datasheet PDF : 11 Pages
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A MICROSEMI COMPANY
LX8385x-xx
3A Low Dropout Positive Regulators
PRODUCTION DATA SHEET
Unless otherwise specified, the following specifications apply over the operating ambient temperature for the LX8385x-xxC with
0°C ≤ TA ≤ 125°C and the LX8385-xxI with -25°C ≤ TA ≤ 125°C except where otherwise noted. Test conditions: VIN -VOUT = 3V;
IOUT = 3A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.
Parameter
Symbol
Test Conditions
LX8385x-xx
Units
Min Typ Max
LX8385-00 / 8385A-00 / 8385B-00 (ADJUSTABLE)
Reference Voltage LX8385/85A-00
(Note 4)
VREF
LX8385B-00
Line Regulation (Note 2)
Load Regulation (Note 2)
Thermal Regulation
Ripple Rejection (Note 3)
REF
(VIN)
REF
(IOUT)
OUT
(Pwr)
Adjust Pin Current
Adjust Pin Current Change (Note 4)
Dropout Voltage LX8385-00
LX8385A/85B-00
IADJ
ADJ
IOUT = 10mA, TA = 25°C
10mA < IOUT < 3A, 1.5V < (VIN -VOUT),
VIN < 10V, P < PMAX
IOUT = 10mA, TA = 25°C
10mA < IOUT < 3A, 1.5V < (VIN -VOUT),
VIN < 10V, P < PMAX
1.5V < (VIN -VOUT), VIN < 7V, IOUT = 10mA
VOUT > VREF, VIN - VOUT = 3V,
10mA < IOUT < 3A
TA = 25°C, 20ms pulse
VOUT = 5V, f= 120Hz, COUT = 100µF Tantalum,
VIN = 6.5V, CADJ = 10µF, IOUT = 3A
1.238
1.225
1.240
1.238
65
10mA < IOUT < IOUT(MAX), 1.5V < (VIN -VOUT), VIN<10V
REF = 1%, IOUT = 3A
REF = 1%, IOUT = 3A
1.250
1.250
1.250
1.250
0.015
0.15
0.01
83
55
0.2
1.2
1.1
1.262 V
1.270 V
1.260 V
1.262 V
0.2
%
0.5
%
0.04 % / W
dB
100
µA
5
µA
1.5
V
1.3
V
Minimum Load Current
IOUT(MIN) VIN < 10V
2
10
mA
Maximum Output Current
IOUT(MAX) (VIN - VOUT) < 7V, VIN < 10V
Long Term Stability (Note 3)
OUT(t) TA = 125°C, 1000 hours
Temperature Stability (Note 3)
OUT(T)
RMS Output Noise (% of VOUT)
(Note 3)
OUT(RMS) TA = 25°C, 10Hz < f < 10kHz
LX8385-33/ 8385A-33/ 8385B-33 (3.3V FIXED)
3
3.5
A
0.3
1
%
0.25
%
0.003
%
Output Voltage
(Note 4)
LX8385/85A-33
LX8385B-33
VOUT
VIN = 5V, IOUT = 0mA, TA = 25°C
4.75V < VIN < 10V, 0mA < IOUT < 3A, P < PMAX
VIN = 5V, IOUT = 0mA, TA = 25°C
4.75V < VIN < 10V, 0A < IOUT < 3A, P < PMAX
3.267 3.3 3.333 V
3.235 3.3 3.365 V
3.274 3.3 3.326 V
3.267 3.3 3.333 V
Line Regulation (note 2)
Load Regulation (note 2)
Thermal Regulation
OUT
(VIN)
OUT
(IOUT)
OUT
(Pwr)
4.75V < VIN < 7V
4.75V < VIN < 10V
VIN = 5V, 0mA < IOUT < IOUT(MAX)
TA = 25°C, 20ms pulse
1
6
mV
2
10
mV
5
15
mV
0.01 0.02 % / W
Ripple Rejection (note 3)
COUT = 100µF (Tantalum), IOUT = 3A
60
83
dB
Quiescent Current
IQ
0mA < IOUT < IOUT(MAX), 4.75V < V < 10V
Dropout Voltage
LX8385-33
LX8385A/85B-33
OUT = 1%, IOUT < IOUT(MAX)
OUT = 1%, IOUT < IOUT(MAX)
4
10
mA
1.2
1.5
V
1.1
1.3
V
Copyright © 2000
Rev. 2.0a, 2001-03-15
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
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