LX8582A Microsemi Corporation, LX8582A Datasheet
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LX8582A
Manufacturer Part Number
LX8582A
Description
8.5a Low Dropout Positive Regulators
Manufacturer
Microsemi Corporation
Datasheet
1.LX8582A.pdf
(7 pages)
T
Copyright © 1997
Rev. 1.1
H E
V
IN
The LX8582A series ICs are low
dropout three-terminal positive regula-
tors with 8.5A rated output current.
Processor applications such as the
Cyrix
Processor and Power PC
requiring fast transient response are
ideally suited for this product family.
The LX8582A series products are
guaranteed to have < 1.3V at 8.5A
and are ideal to provide well-regulated
outputs of 2.5V to 3.6V using a 5V
input supply in the adjustable version,
or an output of 3.3V using a 5V input
supply in the fixed version.
This circuit is designed to have less than 130mV dynamic response to a 8.5A load transient.
Current limit is trimmed above 8.6A
6MV1500GX
1/97
I
4.75V
from Sanyo
N F I N I T E
®
6x86
1500µF
6.3V
V
TM
OUT
Application of the LX8582A for the Cyrix 6x86 processor family.
& 6x86L
= V
P
REF
IN
O W E R
TM
1 +
P R O D U C T H I G H L I G H T
, Pentium
TM
C
3.38V, 8.5A R
Y R I X
applications
LX8582A
R2
R1
0 to 125
F O R F U R T H E R I N F O R M A T I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1
T
D E S C R I P T I O N
A
O F
6
(°C)
®
+ I
ADJ
X
8 6 V
11861 W
ADJ
I
ADJ
I
P A C K A G E O R D E R I N F O R M A T I O N
N N O V A T I O N
R2
= 50µA
"xx" refers to output voltage, please see table above.
O LTA G E
OUT
Dropout
Voltage
to ensure adequate output current and
controlled short-circuit current. On-
chip thermal limiting provides protec-
tion against any combination of
overload that would create excessive
junction temperatures.
in both the through-hole versions of the
industry standard 3-pin TO-220 and TO-
247 power packages.
LX1431 Programmable Reference in
conjunction with this family of regula-
tors offers precision output voltage.
See the LX1431 data sheet for informa-
tion on this product.
E G U L AT O R
ESTERN
V
1.3V
The LX8582A series ICs are available
For use in VRE applications, the
REF
S
U P P LY
A
R1
121
1%
R2
205
1%
VENUE
P
LX8582A-xxCP
Plastic TO-220
3-pin
, G
ARDEN
8 . 5 A L
2x 330µF, 6.3V
Oscon SA type
from Sanyo
-or-
4x 1500µF, 6.3V
6MV1500GX
from Sanyo
3.38V at 8.5A
G
ROVE
P
R O D U C T I O N
O W
, CA. 92841
V
LX8582A-xxCV
Plastic TO-247
3-terminal
D
R O P O U T
A
p FAST TRANSIENT RESPONSE
p 1% VOLTAGE REFERENCE INITIAL
p OUTPUT SHORT CIRCUIT PROTECTION
p BUILT-IN THERMAL SHUTDOWN
VA I L A B L E
Other voltage options may be available —
Part #
LX8582A-00
LX8582A-33
THREE-TERMINAL AJUSTABLE OR FIXED
OUTPUT
GUARANTEED 1.3V HEADROOM AT 8.5A
OUTPUT CURRENT OF 8.5A
ACCURACY
EVALUATION BOARD AVAILABLE:
REQUEST LXE9001 EVALUATION KIT
CYRIX 6x86 & 6x86L APPLICATIONS
PENTIUM PROCESSOR SUPPLIES
POWER PC SUPPLIES
MICROPROCESSOR SUPPLIES
LOW VOLTAGE LOGIC SUPPLIES
POST REGULATOR FOR SWITCHING SUPPLY
LXE9001 EVALUATION BOARD FOR
PENTIUM APPLICATIONS AVAILABLE.
CONSULT FACTORY.
Please contact factory for details.
P
O S I T I V E
K E Y F E A T U R E S
A P P L I C A T I O N S
D
LX8582A-xx
A T A
O
P T I O N S P E R
LIN D
R
S
E G U L AT O R S
H E E T
Adjustable
O C
Voltage
Output
3.3V
#: 8582
P
A R T
1
#