LX8586 / LX8586A

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 1

Copyright

© 1996

Rev. 1.0a, 2005-11-10

6A Low Dropout Positive Regulators

TM

®

DESCRIPTION

The LX8586/86A series ICs are

low dropout three-terminal regulators

with a minimum of 6A output current.

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 are also available and

specified in the Available Options

table below.

Current limit is trimmed above 6.1A

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

the

standard

μP

supply

applications, the LX8586 series of

Processor applications such as GTL+

Bus

terminators

(see

application

below).

IMPORTANT:

PRODUCT H I GHLIGHT

LX8586

OUT

ADJ

121

Ω

±1%

H.S. (Note A)

24.3Ω

±1%

1500µF

Sanyo

6MV1500GX

4x 1500 µF

Sanyo

6MV1500GX

3.3V

IN

1.5V/6A

To GTL+

Terminator

From Silverbox

Power Supply

Note A: See application note, page 3.

KEY FEATUR ES

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

APPLI C ATION S

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™

PACKAGE ORDER INFO

P

Plastic TO-220

3 pin

Dropout

Voltage

RoHS Compliant

Transition DC: 0543

1.3V

LX8586-xxCP

0 to 125

1.1V

LX8586A-xxCP

“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)

Available Options Per Part #

Part #

Output Voltage

LX8586/86A-00

Adjustable

LX8586/86A-33

3.3V

Other voltage options may be available;

please contact factory for details.

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