PRODUCT DATABOOK 1996/1997
LX8384-xx/8384A-xx/8384B-xx
5 A L
OW
D
ROPOUT
P
OSITIVE
R
E G U L AT O R S
P
R O D U C T I O N
D
A T A
S
H E E T
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8384-xxC/8384A-xxC/8384B-xxC with
0°C
≤
T
A
≤
125°C, and the LX8384-xxI with -25°C
≤
T
A
≤
125°C; V
IN
- V
OUT
= 3V; I
OUT
= 5A. Low duty cycle pulse testing techniques are used which
maintains junction and case temperatures equal to the ambient temperature.)
LX8384-00 / 8384A-00 / 8384B-00
(Adjustable)
Parameter
Reference Voltage
(Note 4)
LX8384/84A-00
Symbol
V
REF
Test Conditions
LX8384/84A/84B-00
Min. Typ.
Max.
1.238
1.225
1.240
1.238
1.250
1.250
1.250
1.250
0.015
0.035
0.15
0.01
83
55
0.2
1.2
1.1
2
6
4
0.25
0.3
0.003
1.262
1.270
1.260
1.262
0.2
0.3
0.5
0.02
Units
V
V
V
V
%
%
%
%/W
dB
µA
µA
V
V
mA
A
A
%
%
%
I
OUT
= 10mA, T
A
= 25°C
10mA
≤
I
OUT
≤
5A, 1.5V
≤
(V
IN
- V
OUT
), V
IN
≤
10V, P
≤
P
MAX
LX8384B-00
I
OUT
= 10mA, T
A
= 25°C
10mA
≤
I
OUT
≤
5A, 1.5V
≤
(V
IN
- V
OUT
), V
IN
≤
10V, P
≤
P
MAX
Line Regulation (Note 2)
∆V
REF
1.3V
≤
(V
IN
- V
OUT
), V
IN
≤
7V, I
OUT
= 10mA
(V
IN
)
1.3V
≤
(V
IN
- V
OUT
), V
IN
≤
10V, I
OUT
= 10mA
∆V
REF
(I
OUT
)
V
OUT
≥
V
REF
, V
IN
- V
OUT
= 3V, 10mA
≤
I
OUT
≤
5A
Load Regulation (Note 2)
Thermal Regulation
∆V
OUT
(Pwr)
T
A
= 25°C, 20ms pulse
Ripple Rejection (Note 3)
V
OUT
= 5V, f =120Hz, C
OUT
= 100µf Tantalum, V
IN
= 6.5V
C
ADJ
= 10µF, I
OUT
= 5A
Adjust Pin Current
I
ADJ
Adjust Pin Current Change (Note 4)
∆I
ADJ
10mA
≤
I
OUT
≤
I
OUT (MAX)
, 1.3V
≤
(V
IN
- V
OUT
), V
IN
≤
10V
Dropout Voltage
LX8384-00
∆V
∆V
REF
= 1%, I
OUT
= 5A
LX8384A/84B-00
∆V
REF
= 1%, I
OUT
= 5A
Minimum Load Current
I
OUT (MIN)
V
IN
≤
10V
Maximum Output Current
I
OUT (MAX)
(V
IN
- V
OUT
)
≤
7V
(V
IN
- V
OUT
)
≤
10V
Temperature Stability (Note 3)
∆V
OUT
(T)
Long Term Stability (Note 3)
∆V
OUT
(t) T
A
= 125°C, 1000 hours
RMS Output Noise (% of V
OUT
) (Note 3) V
OUT (RMS)
T
A
= 25°C, 10Hz
≤
f
≤
10kHz
65
20
100
5
1.5
1.3
10
5
3
1
LX8384-15 / 8384A-15 / 8384B-15
(1.5V Fixed)
Parameter
Output Voltage
(Note 4)
LX8384/84A-15
Symbol
V
OUT
Test Conditions
LX8384/84A/84B-15
Min. Typ.
Max.
1.485
1.470
1.488
1.485
1.50
1.50
1.50
1.50
1
1
2.5
0.01
83
4
1.2
1
6
0.25
0.3
0.003
1.515
1.530
1.512
1.515
3
5
7
0.02
10
1.5
1.3
Units
V
V
V
V
mV
mV
mV
%/W
dB
mA
V
V
A
%
%
%
V
IN
= 5V, I
OUT
= 0mA, T
A
= 25°C
4.75V
≤
V
IN
≤
10V, 0mA
≤
I
OUT
≤
5A, P
≤
P
MAX
LX8384B-15
V
IN
= 5V, I
OUT
= 0mA, T
A
= 25°C
4.75V
≤
V
IN
≤
10V, 0mA
≤
I
OUT
≤
5A, P
≤
P
MAX
Line Regulation (Note 2)
∆V
OUT
4.75V
≤
V
IN
≤
7V
(V
IN
)
4.75V
≤
V
IN
≤
10V
Load Regulation (Note 2)
∆V
OUT
(I
OUT
)
V
IN
= 5V, 0mA
≤
I
OUT
≤
I
OUT (MAX)
Thermal Regulation
∆V
OUT
(Pwr)
T
A
= 25°C, 20ms pulse
Ripple Rejection (Note 3)
C
OUT
= 100µF (Tantalum), I
OUT
= 5A
Quiescent Current
I
Q
0mA
≤
I
OUT
≤
I
OUT (MAX)
, 4.75V
≤
V
IN
≤
10V
Dropout Voltage
LX8384-15
∆V
∆V
OUT
= 1%, I
OUT
≤
I
OUT (MAX)
LX8384A/84B-15
∆V
OUT
= 1%, I
OUT
≤
I
OUT (MAX)
Maximum Output Current
I
OUT (MAX)
V
IN
≤
7V
Temperature Stability (Note 3)
∆V
OUT
(T)
Long Term Stability (Note 3)
∆V
OUT
(t) T
A
= 125°C, 1000 hours
RMS Output Noise (% of V
OUT
) (Note 3) V
OUT (RMS)
T
A
= 25°C, 10Hz
≤
f
≤
10kHz
60
5
1
Note 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation.
Note 3. These parameters, although guaranteed, are not tested in production.
Note 4. See Maximum Output Current Section above.
Copyright © 1997
Rev. 1.9 12/97
3
MICROSEMI [ MICROSEMI CORPORATION ]
