LX8584-00CP Microsemi Analog Mixed Signal Group, LX8584-00CP Datasheet

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LX8584-00CP

Manufacturer Part Number
LX8584-00CP
Description
IC REG LDO POS 7A ADJ OUT TO220
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet

Specifications of LX8584-00CP

Regulator Topology
Positive Adjustable
Voltage - Output
Adjustable
Voltage - Input
Up to 10V
Voltage - Dropout (typical)
1.2V @ 7A
Number Of Regulators
1
Current - Output
7A (Min)
Operating Temperature
0°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Copyright © 1997
Rev. 1.3, 2005-11-11
Note: xx refers to output voltage, please see table to right. Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8584-xxCP-TR)
0 to 125
T
are
positive regulators with a nominal 7A
output current. This product family is
ideally suited for Pentium® Processor
and
requiring fast transient response. The
LX8584A is guaranteed to have <
1.2V at 7A and the LX8584/84B <
1.4V at 7A dropout voltage, making
them ideal to provide well regulated
outputs of 2.5V to 3.6V using a 5V
input
LX8584B also offers ±1% maximum
voltage reference accuracy over
temperature. Fixed versions are also
available and are specified in the
Available Options table below.
IMPORTANT: For the most current data, consult MICROSEMI’s website:
J
The LX8584/84A/84B series ICs
(°C) Dropout Voltage
low
Power
TM
supply.
5V
220µF
10V
Low ESR
from
Sanyo
P A C K A G E O R D E R I N F O
Thick traces represent high current traces which must be low resistance /
dropout
3
1.4V
1.2V
PCTM
V
IN
LX8584A
low inductance in order to achieve good transient response.
In
75 & 166 MH
V
3.50
3.38
ADJ
0.1µF
50V
T
OUT
HE
1
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
3
V
A
OUT
250pF
addition,
P R O D U C T H I G H L I G H T
V
V
V
2
three-terminal
+
+
+
PPLICA TION OF THE
2
SGND FGND
Open
Short
applications
LX1431
5
JP1
1kΩ
COL
P
D E S C R I P T I O N
Z
1
1kΩ
P54C P
6
REF
75/90/100/133MHz, STND, 3.3V Cache
0.01µF
8
Plastic TO-220
3 pin
the
2.84kΩ
0.1%
120/166MHz, VRE, 3.3V Cache
Transition DC: 0543
LX8584B-xxCP
LX8584A-xxCP
ROCESSORS
LX8584-xxCP
RoHS Compliant
LX8584A & LX1431
TYPICAL APPLICATION
1k
0.1%
to ensure adequate output current and
controlled short-circuit current. On-chip
thermal limiting provides protection
against any combination of overload
that would create excessive junction
temperatures. The LX8584/84A series
products are available in both the
through-hole versions of the industry
standard 3-pin TO-220 and TO-247
power
Programmable Reference utilzed in
conjunction with the LX8584 7A LDO
products offer precision output voltage
(see application below) and are ideal for
use in VRE applications.
330µF, 6.3V
Oscon Type
from Sanyo
Current limit is trimmed above 7.1A
JP1
Low ESR
21k
1%
U
(See Table Below)
3x
SING
Integrated Products Division
V
O
packages.
7A
3.3V C
®
Microsemi
http://www.microsemi.com
PLACE IN µP SOCKET CAVITY
IN A
ACHE
1µF x 10
SMD
100µF x 6
AVX TYPE
10V
TPS
The
7A Low Dropout Positive Regualtors
Load
µP
LX1431
P
RODUCTION
LX8584/A/B-00
LX8584/A/B/-33
Other voltage options may be available –
please contact factory for details.
1.5
1.0
0.5
A V A I L A B L E O P T I O N S
0
Three Terminal Adjustable or
Fixed Output
Guaranteed 1% Voltage
Accuracy over Temperature
(LX8584B)
Guaranteed < 1.2V Headroom
at 7A (LX8584A)
Guaranteed < 1.4V Headroom
at 7A (LX8584/84B)
Output Current of 7A
Fast Transient Response
1% Voltage Reference Initial
Accuracy
Output Short Circuit Protection
Built-in Thermal Shutdown
Evaluation Board Available:
Request LXE9001 Evaluation
Kit
Pentium™ Processor Supplies
Power PC™ Supplies
Microprocessor Supplies
Low Voltage Logic Supplies
Post Regulator for Switching
Supply
D
Part #
ATA
K E Y F E A T U R E S
LX8584/84A
A P P L I C A T I O N S
D
ROPOUT
1.75
O
S
Output Current - (A)
UTPUT
HEET
V
3.5
C
OLT AGE VS
LX8584x-xx
URRENT
Adjustable
LX8584
Voltage
Output
3.3V
5.25
T
LX8584A
.
J
= 125 °C
7
Page 1

Related parts for LX8584-00CP

LX8584-00CP Summary of contents

Page 1

... J 1. 125 1.2V Note: xx refers to output voltage, please see table to right. Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8584-xxCP-TR) Copyright © 1997 Rev. 1.3, 2005-11-11 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® ...

Page 2

... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® 7A Low Dropout Positive Regualtors . , θ T 2.7°C θ A 60°C/W MBIENT JA x θ Microsemi Integrated Products Division LX8584x- RODUCTION ATA HEET TAB is GND ADJ/GND ACKAGE (Top View) RoHS 100% Matte Tin Lead Finish IN OUT ...

Page 3

... Dropout Voltage LX8584/84B LX8584/84B Minimum Load Current Maximum Output Current Temperature Stability Long Term Stability RMS Output Noise (% OUT LX8584-33 / 84A-33 / 84B-33 (3.3V Fixed LX8584B-33 Output Voltage LX8584/84A-33 Line Regulation (Note 2) Load Regulation (Note 2) Thermal Regulation Ripple Rejection (Note 3) Quiescent Current ...

Page 4

... Use of an output capacitor is REQUIRED with the LX8584 / 84A / 84B series. Please see the table below for recommended minimum capacitor values. These regulators offer a more tightly controlled reference voltage tolerance and superior reference stability when measured against the older pin-compatible regulator types that they replace ...

Page 5

... Output ripple will be twice as bad as it would be if the ADJ pin were to be bypassed to ground with a properly selected capacitor. OUTPUT VOLTAGE The LX8584/84A/84B ICs develop a 1.25V reference voltage between the output and the adjust terminal (See Figure 2). By placing a resistor, R1, between these two terminals, a constant current is caused to flow through R1 and down through R2 to set the overall output voltage ...

Page 6

... DROPOUT(MAX) installed regulator. THERMAL CONSIDERATIONS The LX8584/84A/84B regulators have internal power and thermal limiting circuitry designed to protect each device under overload conditions. For continuous normal load conditions, however, maximum junction 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 LX8584/84A/84B-33 OUT IN GND Figure 7 – Fixed 3.3V Output Regulator ) + (V ) DROPOUT(MAX) Microsemi Integrated Products Division LX8584x- RODUCTION ATA HEET LX8584/84A/84B OUT IN V OUT ADJ R1 121Ω C2 C1* 100µF 10µ 1.25V 121Ω 1% 100µF 365Ω ...

Page 8

... S 1. 5.84 U 0.508 Note: 1. Dimensions do not include mold flash or protrusions; J these shall not exceed 0.155mm(.006”) on any side. Lead dimension shall not include solder coverage. Microsemi Integrated Products Division LX8584x- ATA HEET I ILLIMETERS NCHES MAX MIN MAX 15.88 0.560 0.625 10 ...

Page 9

... Pentium is a trademark of Intel Corporation\ PowerPC is a trademark of Motorola Inc. Copyright © 1997 Rev. 1.3, 2005-11-11 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® 7A Low Dropout Positive Regualtors P RODUCTION Microsemi Integrated Products Division LX8584x- ATA HEET Page 9 ...

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