LX8385-05 Microsemi Corporation, LX8385-05 Datasheet - Page 3

• Manufacturer Part Number: LX8385-05
• Description: 3 A LOW DROPOUT POSITIVE REGULATORS
• Manufacturer: Microsemi Corporation

Copyright © 1999
Rev. 2.0a 10/00
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8385-xxC/85A/85B-xxC with 0°C
125°C and the LX8385-xxI with -25°C
junction and case temperatures equal to the ambient temperature.)
LX8385-00/85A/85B-00 (Adjustable)
LX8385-33/85A-33/85B-33 (3.3V Fixed)
Note 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
Note 3. These parameters, although guaranteed, are not tested in production.
Note 4. See Maximum Output Current Section above.
Reference Voltage
Line Regulation (Note 2)
Load Regulation (Note 2)
Thermal Regulation
Ripple Rejection (Note 3)
Adjust Pin Current
Adjust Pin Current Change (Note 4)
Dropout Voltage
Minimum Load Current
Maximum Output Current
Temperature Stability (Note 3)
Long Term Stability (Note 3)
RMS Output Noise (% of V
Output Voltage
Line Regulation (Note 2)
Load Regulation (Note 2)
Thermal Regulation
Ripple Rejection (Note 3)
Quiescent Current
Dropout Voltage
Maximum Output Current
Temperature Stability (Note 3)
Long Term Stability (Note 3)
RMS Output Noise (% of V
(Note 4)
(Note 4)
heating effects are covered under the specification for thermal regulation.
Parameter
Parameter
LX8385-00
LX8385A/85B-00
LX8385-00
LX8385A/85B-00
LX8385-33
LX8385A/85B-33
LX8385-33
LX8385A/85B-33
OUT
OUT
) (Note 3) V
) (Note 3) V
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
T
3 A L
A
Symbol
Symbol
I
I
I
V
V
OUT (MAX)
V
V
OUT (MAX)
V
OUT (MIN)
V
V
V
OUT (RMS)
V
OUT (RMS)
OUT
OUT
(V
OUT
REF
REF
OUT
V
OUT
125°C; V
V
OUT
OUT
I
V
ADJ
I
OUT
REF
I
Q
(Pwr)
IN
(Pwr)
ADJ
OUT
V
(I
V
(I
P
(V
E L E C T R I C A L C H A R A C T E R I S T I C S
)
OUT
(T)
OUT
(T)
(t) T
(t) T
IN
O W
)
)
)
R O D U C T I O N
I
10mA
I
10mA
1.5V
V
T
V
10mA
V
(V
T
V
4.75V V
V
4.75V V
4.75V V
4.75V V
V
T
C
0mA
V
T
OUT
OUT
A
IN
A
A
A
IN
A
A
IN
OUT
IN
IN
IN
IN
C
OUT
V
V
V
V
IN
= 25°C, 20ms pulse
= 125°C, 1000 hours
= 25°C, 10Hz
= 25°C, 20ms pulse
= 125°C, 1000 hours
= 25°C, 10Hz
ADJ
REF
REF
OUT
OUT
- V
= 5V, I
= 5V, I
= 5V, 0mA
- V
D
= 10mA, T
= 10mA, T
- V
= 5V, f =120Hz, C
= 100µF (Tantalum), I
10V
7V
= 1%, I
= 1%, I
= 10µF, I
OUT
= 1%, I
= 1%, I
R O P O U T
OUT
OUT
(V
I
OUT
I
I
I
= 3V, 10mA
OUT
OUT
IN
OUT
)
OUT
OUT
IN
IN
IN
IN
= 3V; I
- V
OUT
OUT
7V, V
= 0mA, T
= 0mA, T
I
OUT
OUT
7V
10V
OUT (MAX)
OUT
10V, 0mA
10V, 0mA
I
I
I
OUT
A
OUT (MAX)
A
OUT (MAX)
OUT (MAX)
= 3A
= 3A
= 25°C
= 25°C
)
I
OUT
OUT
= 3A
IN
I
I
OUT (MAX)
OUT (MAX)
f
f
= 3A. Low duty cycle pulse testing techniques are used which maintains
P
7V, I
, 4.75V
LX8385-xx/8385A-xx/8385B-xx
10V
, 1.5V
, 1.5V
A
A
I
10kHz
10kHz
, 1.5V
Test Conditions
Test Conditions
OUT (MAX)
OUT
O S I T I V E
I
= 25°C
= 25°C
OUT
OUT
D
= 100µf Tantalum, V
OUT
I
I
OUT
OUT
= 10mA
A T A
3A
= 3A
(V
(V
V
(V
IN
IN
IN
3A, P
3A, P
IN
- V
- V
- V
10V
OUT
OUT
R
OUT
S
), V
), V
E G U L A T O R S
), V
P
P
MAX
MAX
H E E T
IN
IN
IN
10V, P
10V, P
10V
IN
= 6.5V
P
P
MAX
MAX
1.238
1.225
1.240
1.238
3.267
3.235
3.274
3.267
LX8385/85A/85B-00
LX8385/85A/85B-33
Min.
Min.
65
60
3
3
1.250
1.250
1.250
1.250
0.015
0.003
0.003
Typ.
0.01
0.25
Typ.
0.01
0.25
0.2
0.2
1.2
1.1
3.5
0.3
3.3
3.3
3.3
3.3
1.2
1.1
3.5
0.3
83
55
83
2
1
2
5
4
1.262
1.270
1.260
1.262
3.333
3.365
3.326
3.333
Max.
0.04
Max.
0.02
100
0.2
0.5
1.5
1.3
1.5
1.3
10
10
15
10
5
1
6
1
T
A
Units
Units
% / W
%/W
mA
mA
mV
mV
mV
µA
µA
%
%
dB
%
%
%
dB
%
%
%
A
A
V
V
V
V
V
V
V
V
V
V
V
V
3