3A L
O W
D
R O P O U T
P
O S I T I V E
R
E G U L AT O R S
LX8385-xx/8385A-xx/8385B-xx
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
Copyright 1999
Rev. 2.0a 10/00
4
P
R O D U C T I O N
D
A T A
S
H E E T
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Test Conditions
Units
LX8385/85A/85B-05
Min.
Typ.
4.950
5.00
4.900
5.00
4.960
5.00
4.950
5.00
2
5
0.01
60
83
4
1.2
1.1
3
3.5
0.25
0.3
0.003
Max.
5.050
5.100
5.040
5.050
10
25
0.02
Output Voltage
(Note 4)
LX8385-05
V
OUT
V
IN
= 7V, I
OUT
= 0mA, T
A
= 25°C
7V
≤
V
IN
≤
10V, 0mA
≤
I
OUT
≤
3A, P
≤
P
MAX
V
IN
= 7V, I
OUT
= 0mA, T
A
= 25°C
7V
≤
V
IN
≤
10V, 0mA
≤
I
OUT
≤
3A, P
≤
P
MAX
V
OUT
(V
IN
)
4.75V
≤
V
IN
≤
10V
V
OUT
(I
OUT
)
V
IN
= 7V, 0mA
≤
I
OUT
≤
I
OUT (MAX)
V
OUT
(Pwr)
T
A
= 25°C, 20ms pulse
C
OUT
= 100μF (Tantalum), I
OUT
= 3A
I
Q
0mA
≤
I
OUT
≤
I
OUT (MAX)
, 7V
≤
V
IN
≤
10V
V
V
OUT
= 1%, I
OUT
≤
I
OUT (MAX)
V
OUT
= 1%, I
OUT
≤
I
OUT (MAX)
I
OUT (MAX)
V
IN
≤
10V
V
OUT
(T)
V
OUT
(t) T
A
= 125°C, 1000 hours
T
A
= 25°C, 10Hz
≤
f
≤
10kHz
LX8385A/85B-05
Line Regulation (Note 2)
Load Regulation (Note 2)
Thermal Regulation
Ripple Rejection (Note 3)
Quiescent Current
Dropout Voltage
LX8385-
05
LX8385A/85B-05
Maximum Output Current
Temperature Stability (Note 3)
Long Term Stability (Note 3)
RMS Output Noise (% of V
OUT
) (Note 3) V
OUT (RMS)
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.
V
V
V
V
mV
mV
% / W
dB
mA
V
V
A
%
%
%
10
1.5
1.3
1
LX8385-05/85A-05/85B-05
(5.0V Fixed)