LX8554 Microsemi Corporation, LX8554 Datasheet
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LX8554
Manufacturer Part Number
LX8554
Description
5a Extremely Low Dropout Positive Regulators
Manufacturer
Microsemi Corporation
Datasheet
1.LX8554.pdf
(7 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LX8554-00CDD
Manufacturer:
MSC
Quantity:
20 000
Part Number:
LX8554-00CDD-TR
Manufacturer:
MICROSEMI/美高森美
Quantity:
20 000
T
Copyright © 1997
Rev. 1.1
H E
Sanyo MVGX Series
The LX8554 series ICs are very low drop-
out three-terminal positive regulators with
5A rated output current. This product fam-
ily is ideally suited for Pentium
sor and Power PC
ing fast transient response. The LX8554
is guaranteed to have a dropout volt-
age under 1V at 5A load, making it ideal
to provide well-regulated outputs of 2.5V
to 3.6V with input supply as low as 4.75V.
Fixed versions are also available and are
specified in the Available Options table
below.
ensure adequate output current and con-
V
IN
Current limit is trimmed above 5.1A to
1/97
I
N F I N I T E
1500µF, 6.3V
4.75
T
YPICAL
O
UTPUT
A
PPLICATION OF THE
TM
Open
Open
Short
P
JP1
applications requir-
V
O W E R
OLTAGE
P R O D U C T H I G H L I G H T
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
S
D E S C R I P T I O N
IN
®
ELECTABLE VIA
Open
Short
Short
O F
R2
JP2
Proces-
LX8554
LX8554
11861 W
Note: All surface-mount packages are available in Tape & Reel.
0 to 125
Append the letter "T" to part number. (i.e. LX8554-00CDDT)
ADJ
T
I
P A C K A G E O R D E R I N F O R M A T I O N
A
N N O V A T I O N
(°C)
13
1%
14.7
1%
200
1%
"xx" refers to output voltage, please see table above.
IN A
J
OUT
OUTPUT VOLTAGE
trolled short-circuit current. On-chip ther-
mal limiting provides protection against
any combination of overload that would
create excessive junction temperatures.
able in both through-hole and surface-
mount versions of industry standard 3-pin
TO-220 / TO-263 power packages.
for use in multiple processor applications
where output voltage is jumper selected.
The LX8554 ICs offer precision output as
well as low supply operation (see appli-
cation below). For higher current appli-
cations see the LX8584 series of products.
UMPERS
ESTERN
The LX8554 series products are avail-
The LX8554 family of products are ideal
F
JP1
JP2
P
LEXIBLE
3.45V
V
3.6V
3.3V
"JP1"
Plastic TO-220
3-pin
LX8554-xxCP
REF
A
V
VENUE
OUT
M
OTHERBOARD WITH
AND
= V
R1
121
1%
, G
REF
"JP2"
ARDEN
1 +
5A E
R2
R1
3x 1500µF
6.3V
Sanyo
MVGX Series
DD
G
XTREMELY
(See Table Below)
ROVE
P
+ I
LX8554-xxCDD
Plastic T0-263
3-pin
R O D U C T I O N
ADJ
V
, CA. 92841
O
R2
L
OW
A
D
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 —
ROPOUT
Part #
LX8554-00
LX8554-33
THREE-TERMINAL ADJUSTABLE OR FIXED
OUTPUT
GUARANTEED
OUTPUT CURRENT OF 5A
ACCURACY
EVALUATION BOARD AVAILABLE:
REQUEST LXE9001 EVALUATION KIT
PENTIUM PROCESSOR SUPPLIES
POWER PC SUPPLIES
MICROPROCESSOR SUPPLIES
LOW VOLTAGE LOGIC SUPPLIES
BATTERY POWERED CIRCUIT
POST REGULATOR FOR SWITCHING SUPPLY
Please contact factory for details.
K E Y F E A T U R E S
A P P L I C A T I O N S
D
A T A
P
O
OSITIVE
LX8554-xx
P T I O N S P E R
1V HEADROOM AT 5A
LIN D
S
H E E T
R
Adjustable
EGULATORS
O C
Voltage
Output
3.3V
#: 8554
P
A R T
1
#