LX8586 Microsemi Corporation, LX8586 Datasheet

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LX8586

Manufacturer Part Number
LX8586
Description
Low Drop Out Regulator - Positive Adjustable
Manufacturer
Microsemi Corporation
Datasheet
Copyright © 1996
Rev. 1.0a, 2005-11-10
“xx” refers to output voltage, see table to right.
Note: Available in Tape & Reel. Append the letters “TR” to the part number.
(i.e. LX8586A-00CP-TR)
low dropout three-terminal regulators
with a minimum of 6A output current.
Pentium
Cyrix
applications requiring fast transient
response are ideally suited for this
product family. The LX8586A is
guaranteed to have < 1.1V at 6A and
the LX8586 < 1.3V at 6A dropout
voltage, making them ideal to provide
well-regulated outputs of 2.5V to 3.6V
using a 5V input supply. Fixed
versions
specified in the Available Options
table below.
IMPORTANT: For the most current data, consult MICROSEMI’s website:
0 to 125
From Silverbox
T
Note A: See application note, page 3.
Power Supply
A
The LX8586/86A series ICs are
(°C)
®
TM
®
6x86TM and AMD-K5™
A
P A C K A G E O R D E R I N F O
are
Processor, Power PCTM,
PPLICA TION
Dropout
Voltage
6MV1500GX
1.3V
1.1V
3.3V
also
1500 µF
Sanyo
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
available
OF
P R O D U C T H I G H L I G H T
P
LX8586
1.5V, 6 A R
D E S C R I P T I O N
Plastic TO-220
3 pin
Transition DC: 0543
LX8586A-xxCP
LX8586-xxCP
IN
RoHS Compliant
and
H.S. (Note A)
LX8586
AS
ADJ
1.5V GTL + B
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 LX8586/86A series
devices are available in both through-
hole versions of the industry-standard,
3-pin TO-220 power packages. Along
with
applications, the LX8586 series of
products are ideal for Pentium
Processor applications such as GTL+
Bus
below).
24.3Ω
±1%
EGULA TO R
Current limit is trimmed above 6.1A
OUT
Integrated Products Division
terminators
the
®
121Ω
±1%
http://www.microsemi.com
Microsemi
standard
US
T
ERMINA TO R
1.5V/6A
(see
4x 1500 µF
Sanyo
6MV1500GX
6A Low Dropout Positive Regulators
μP
application
To GTL+
Terminator
supply
®
P
Pro
RODUCTION
Pentium is a registered Trademark of Intel Corporation
Cyrix is a registered Trademark of Cyrix Corporation.
K5 & K6 are trademarks of Advanced Micro Devices
PowerPC is a trademark of International Business Machine
Other voltage options may be available;
please contact factory for details.
LX8586/86A-00
LX8586/86A-33
Available Options Per Part #
ThreeeTerminal Adjustable or
Fixed Output
Guaranteed < 1.1V Headroom at
6A (LX8586A)
Guaranteed < 1.3V Headroom at
6A (LX8586)
Output Current of 6A Minimum
Fast Transient Response
1% Voltage Reference Initial
Accuracy
Output Short Circuit Protection
Built in Thermal Shutdown
Evaluation Board Available:
Request LXE9001 Evaluation Kit
GTL+ Bus Terminators
Pentium
PowerPC
Microprocessor Supplies
Low Voltage Logic Supplies
Post Regulator for Switching
Supply
LXE9001 Evaluation Board for
Pentium
Consult Factory
CYRIX
AMD-K5™ and AMD-K6™
D
Part #
ATA
K E Y F E A T U R E S
LX8586 / LX8586A
A P P L I C A T I O N S
®
S
®
®
6x86™
HEET
®
Processor Supplies
Applications Available
Supplies
Output Voltage
Adjustable
3.3V
Page 1

Related parts for LX8586

LX8586 Summary of contents

Page 1

... AMD-K5™ applications requiring fast transient response are ideally suited for this product family. The LX8586A is guaranteed to have < 1. and the LX8586 < 1. dropout voltage, making them ideal to provide well-regulated outputs of 2.5V to 3.6V using a 5V input supply. Fixed versions are ...

Page 2

... T 2.7°C θ A 60°C/W MBIENT JA x θ Microsemi Integrated Products Division LX8586 / LX8586A RODUCTION ATA HEET Tab is V OUT ACKAGE (Top View) *Pin 1 is GND for fixed Voltage Versions ...

Page 3

... Dropout Voltage LX8586A-00 Minimum Load Current Maximum Output Current Temperature Stability Long Term Stability RMS Output Noise (% OUT LX8586-33 / LX8586A-33 (3.3V FIXED) Output Voltage Line Regulation (Note 2) Load Regulation (Note 2) Thermal Regulation (Note 3) Ripple Rejection (Note 3) Quiescent Current LX8586-33 Dropout Voltage ...

Page 4

... Use of an output capacitor is REQUIRED with the LX8586/86A series. Please see the table below for recommended minimum capacitor values. ...

Page 5

... O V UTPUT OLTAGE The LX8586/86A 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. Normally this current is the specified minimum load current of 10mA ...

Page 6

... T C HERMAL ONSIDERATIONS The LX8586/86A 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

... LX8586-33/86A-33 OUT IN GND Min. 15µF Tantalum or 100µF Aluminum capacitor. May be increased without limit. ESR must be less than 50mΩ. Figure 7 - Fixed 3.3V Output Regulator ) Microsemi Integrated Products Division LX8586 / LX8586A D S ATA HEET LX8586/86A OUT IN V OUT ADJ R1 121Ω ...

Page 8

... 0.508 Note: 1. Dimensions do not include mold flash or protrusions; these J shall not exceed 0.155mm(.006”) on any side. Lead dimension shall not include solder coverage. Microsemi Integrated Products Division LX8586 / LX8586A D S ATA HEET M I ILLIMETERS NCHES MIN MAX MIN MAX 15 ...

Page 9

... Copyright © 1996 Rev. 1.0a, 2005-11-10 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® 6A Low Dropout Positive Regulators P RODUCTION Microsemi Integrated Products Division LX8586 / LX8586A D S ATA HEET Page 9 ...

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