LX8554-00CDD Microsemi Analog Mixed Signal Group, LX8554-00CDD Datasheet

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LX8554-00CDD

Manufacturer Part Number
LX8554-00CDD
Description
IC REG LDO POS 5A ADJ OUT TO263
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet

Specifications of LX8554-00CDD

Regulator Topology
Positive Adjustable
Voltage - Output
Adjustable
Voltage - Input
Up to 10V
Voltage - Dropout (typical)
0.8V @ 5A
Number Of Regulators
1
Current - Output
5A
Current - Limit (min)
5.1A
Operating Temperature
0°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-3, D²Pak (3 leads + Tab), TO-263AA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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
#

Related parts for LX8554-00CDD

LX8554-00CDD Summary of contents

Page 1

... JP2 1% OUTPUT VOLTAGE 3.6V 3.45V 3. Plastic TO-220 Plastic T0-263 T (° 3-pin 3-pin 0 to 125 LX8554-xxCP LX8554-xxCDD Append the letter "T" to part number. (i.e. LX8554-00CDDT) "xx" refers to output voltage, please see table above ESTERN VENUE ARDEN ROVE LIN D LX8554- ROPOUT OSITIVE EGULATORS ...

Page 2

... LX8554- Power Dissipation .................................................................................. Internally Limited Input Voltage ................................................................................................................ 10V Input to Output Voltage Differential ........................................................................... 10V Operating Junction Temperature Plastic (P Package) ................................................................................................ 150°C Storage Temperature Range ...................................................................... -65°C to 150°C Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground ...

Page 3

... (Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8554-xxC with 0° 5A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) OUT LX8554-00 (Adjustable) Parameter Symbol Reference Voltage ...

Page 4

... The LX8554 SOA protection system is designed to be able to supply some output current for all values of input-to-output voltage the device breakdown voltage. ...

Page 5

... FIGURE 3 — CONNECTIONS FOR BEST LOAD REGULATION LX8554-xx R EGULATORS LX8554 OUT IN V ADJ V R1 REF I ADJ 50µ OUT REF ADJ three-terminal device not possible to R2+ Actual parasitic line resistance Parasitic LX8554 Line Resistance OUT IN ADJ Connect R1 to Case of Regulator R1 R2 Connect R2 to Load OUT . Peff ...

Page 6

... DROPOUT (MAX) for the installed regulator. THERMAL CONSIDERATIONS The LX8554 regulator has internal power and thermal limiting circuitry designed to protect the device under overload conditions. For continuous normal load conditions, however, maximum junc- tion temperature ratings must not be exceeded important to give careful consideration to all sources of thermal resistance from junction to ambient ...

Page 7

... FIGURE 6 — 5V REGULATOR WITH SHUTDOWN LX8554-33 OUT IN IN GND FIGURE 7 — FIXED 3.3V OUTPUT REGULATOR ) DROPOUT (MAX) Pentium is a registered trademark of Intel Corporation. Power trademark of International Business Machines Corporation. LX8554-xx R EGULATORS LX8554 OUT IN ADJ R1 121 C1* 10µ 1.25V 1 + OUT R1 5V 100µF ...

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