3A L OW D ROPOUT P OSITIVE R EGULA TORS
LX8385-xx/8385A-xx/8385B-xx
PRODUCT DA T ABOOK 1996/1997
Copyright © 1999
Rev. 2.0a 10/00
4
P RODUCTION D ATA S HEET
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Test Conditions
Units
LX8385/85A/85B-05
Min.
Typ.
Max.
Output Voltage
LX8385-05
V
OUT
V
IN = 7V, IOUT = 0mA, TA = 25°C
(Note 4)
7V
≤ V
IN ≤
10V, 0mA
≤ I
OUT ≤ 3A, P ≤ PMAX
LX8385A/85B-05
V
IN = 7V, IOUT = 0mA, TA = 25°C
7V
≤ V
IN ≤
10V, 0mA
≤ I
OUT ≤ 3A, P ≤ PMAX
Line Regulation (Note 2)
∆V
OUT (VIN)
4.75V
≤ V
IN ≤ 10V
Load Regulation (Note 2)
∆V
OUT (IOUT)
V
IN = 7V, 0mA ≤ IOUT ≤ IOUT (MAX)
Thermal Regulation
∆V
OUT(Pwr)
T
A = 25°C, 20ms pulse
Ripple Rejection (Note 3)
C
OUT = 100µF (Tantalum), IOUT = 3A
Quiescent Current
I
Q
0mA
≤ I
OUT ≤ IOUT (MAX) , 7V ≤ V IN ≤ 10V
Dropout Voltage
LX8385-05
∆V
∆V
OUT = 1%, IOUT ≤ IOUT (MAX)
LX8385A/85B-05
∆V
OUT = 1%, IOUT ≤ IOUT (MAX)
Maximum Output Current
I
OUT (MAX)
V
IN ≤ 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
4.950
5.00
5.050
V
4.900
5.00
5.100
V
4.960
5.00
5.040
V
4.950
5.00
5.050
V
210
mV
525
mV
0.01
0.02
% / W
60
83
dB
410
mA
1.2
1.5
V
1.1
1.3
V
3
3.5
A
0.25
%
0.3
1
%
0.003
%
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.
LX8385-05/85A-05/85B-05 (5.0V Fixed)