LX8384x-xx
ꢀꢁꢂꢃꢁꢂꢁꢄꢅꢆ
5A Low Dropout Positive Regulators
A
M I C R O S E M I
C O M P A N Y
PRODUCTION
Unless otherwise specified, the following specifications apply over the operating ambient temperature for the LX8384x-xxC with
0°C ≤ TA ≤ 125°C and the LX8384-xxI with -25°C ≤ TA ≤ 125°C except where otherwise noted. Test conditions: VIN -VOUT = 3V;
IOUT = 5A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.
Mcrosemi
LX8384x-xx
Parameter
Symbol
Test Conditions
Units
Min
Typ
Max
LX8384-00 / 8384A-00 / 8384B-00 (ADJUSTABLE)
ꢀ
.
IOUT = 10mA, TA = 25°C
1.238
1.225
1.240
1.238
1.250
1.250
1.250
1.250
1.262
1.270
1.260
1.262
V
V
V
V
Reference Voltage
(Note 4)
LX8384/84A-00
LX8384B-00
10mA < IOUT < 5A, 1.5V < (VIN -VOUT),
VIN < 10V, P < PMAX
VREF
IOUT = 10mA, TA = 25°C
10mA < IOUT < 5A, 1.5V < (VIN -VOUT),
VIN < 10V, P < PMAX
1.3V < (VIN -VOUT), VIN < 7V, IOUT = 10mA
1.3V < (VIN -VOUT), VIN < 10V, IOUT = 10mA
0.015
0.035
0.2
0.3
%
%
REF
Line Regulation (Note 2)
(VIN)
VOUT > VREF, VIN - VOUT = 3V,
10mA < IOUT < 5A
REF
Load Regulation (Note 2)
Thermal Regulation
0.15
0.01
83
0.5
%
% / W
dB
(IOUT
)
OUT
TA = 25°C, 20ms pulse
0.02
(Pwr)
V
V
OUT = 5V, f= 120Hz, COUT = 100µF Tantalum,
IN = 6.5V, CADJ = 10µF, IOUT = 5A
Ripple Rejection (Note 3)
65
20
Adjust Pin Current
IADJ
55
0.2
1.2
1.1
2
100
5
µA
µA
V
Adjust Pin Current Change (Note 4)
10mA < IOUT < IOUT(MAX), 1.3V < (VIN -VOUT), VIN<10V
ADJ
= 1%, IOUT = 5A
1.5
1.3
10
Dropout Voltage
LX8384-00
REF
LX8384A/84B-00
= 1%, IOUT = 5A
V
REF
Minimum Load Current
IOUT(MIN)
IOUT(MAX)
VIN < 10V
mA
A
(VIN - VOUT) < 7V
(VIN - VOUT) < 10V
5
3
6
Maximum Output Current
4
A
Long Term Stability (Note 3)
Temperature Stbility (Note 3)
OUT(t) TA = 125°C, 1000 hours
0.3
0.25
1
%
%
OUT(T)
RMS Output Noise (% of VOUT
(Note 3)
)
TA = 25°C, 10Hz < f < 10kHz
0.003
%
OUT(RMS)
LX8384-15 / 8384A-15 / 8384B-15 (1.5V FIXED)
ꢀ
VIN = 5V, IOUT = 0mA, TA = 25°C
4.75V < VIN < 10V, 0mA < IOUT < 5A, P < PMAX
VIN = 5V, IOUT = 0mA, TA = 25°C
4.75V < VIN < 10V, 0A < IOUT < 5A, P < PMAX
4.75V < VIN < 7V
1.485
1.470
1.488
1.485
1.50
1.50
1.50
1.50
1
1.515
1.530
1.512
1.515
3
V
V
Output Voltage
(Note 4)
LX8384/84A-15
LX8384B-15
VOUT
V
V
mV
mV
OUT
Line Regulation (note 2)
(VIN)
4.75V < VIN < 10V
1
5
OUT
Load Regulation (note 2)
Thermal Regulation
V
IN = 5V, 0mA < IOUT < IOUT(MAX)
2.5
7
mV
(IOUT
)
OUT
TA = 25°C, 20ms pulse
0.01
0.02
% / W
(Pwr)
Ripple Rejection (note 3)
Quiescent Current
COUT = 100µF (Tantalum), IOUT = 5A
0mA < IOUT < IOUT(MAX), 4.75V < V < 10V
OUT = 1%, IOUT < IOUT(MAX)
60
83
4
dB
mA
V
IQ
10
1.5
1.3
1.2
1
Dropout Voltage
LX8384-15
LX8384A/84B-15
OUT = 1%, IOUT < IOUT(MAX)
V
Copyright 2000
Rev. 2.1d, 2001-03-15
Microsemi
Page 3
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
MICROSEMI [ Microsemi ]
