LX8586-XX Microsemi Corporation, LX8586-XX Datasheet

LX8586-XX

Manufacturer Part Number

LX8586-XX

Description

6A LOW DROPOUT POSITIVE REGULATORS

Manufacturer

Microsemi Corporation

Datasheet

1.LX8586-XX.pdf (7 pages)

Current page: 1 of 7
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Rev. 1.0

H E

Note A: See application note, page 3.

From Silverbox

Power Supply

The LX8586/86A series ICs are low

dropout three-terminal regulators with

a minimum of 6A output current.

Pentium

Cyrix

tions 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.

12/96

N F I N I T E

6x86

Processor, Power PC

P P L I C AT I O N O F

6MV1500GX

and AMD-K5

3.3V

1500µF

Sanyo

O W E R

P R O D U C T H I G H L I G H T

L X 8 5 8 6

0 to 125

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

1.5V, 6A R

applica-

D E S C R I P T I O N

O F

(°C)

11861 W

H.S. (Note A)

LX8586

A S

P A C K A G E O R D E R I N F O R M A T I O N

ADJ

N N O V A T I O N

"xx" refers to output voltage, please see table above.

1 . 5 V G T L + B

24.3

±1%

E G U L AT O R

Dropout

Voltage

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.

available in both through-hole versions

of the industry-standard, 3-pin TO-220

and TO-247 power packages.

applications, the LX8586 series of

products are ideal for Pentium

Processor applications such as GTL+

Bus terminators (see application below).

OUT

ESTERN

1.3V

1.1V

Current limit is trimmed above 6.1A

The LX8586/86A series devices are

Along with the standard µP supply

121

±1%

VENUE

U S

LX8586A-xxCP

Plastic TO-220

3-pin

LX8586-xxCP

, G

E R M I N AT O R

1.5V/6A

ARDEN

4x 1500µF

Sanyo

6MV1500GX

6 A L

ROVE

To GTL+

Terminator

O W

Pro

R O D U C T I O N

, CA. 92841

LX8586-xx/8586A-xx

LX8586A-xxCV

LX8586-xxCV

Plastic TO-247

3-terminal

R O P O U T

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 —

Part #

LX8586/86A-00

LX8586/86A-33

THREE-TERMINAL ADJUSTABLE OR FIXED

OUTPUT

GUARANTEED < 1.1V HEADROOM AT 6A

(LX8586A)

GUARANTEED < 1.3V HEADROOM AT 6A

(LX8586)

OUTPUT CURRENT OF 6A MINIMUM

ACCURACY

EVALUATION BOARD AVAILABLE:

REQUEST LXE9001 EVALUATION KIT

GTL+ BUS TERMINATORS

PENTIUM PROCESSOR SUPPLIES

POWER PC SUPPLIES

MICROPROCESSOR SUPPLIES

LOW VOLTAGE LOGIC SUPPLIES

POST REGULATOR FOR SWITCHING SUPPLY

LXE9001 EVALUATION BOARD FOR

PENTIUM APPLICATIONS AVAILABLE.

CONSULT FACTORY

CYRIX 6x86

AMD-K5

Please contact factory for details.

O S I T I V E

K E Y F E A T U R E S

A P P L I C A T I O N S

A T A

AND AMD-K6

P T I O N S P E R

LIN D

E G U L A T O R S

H E E T

Adjustable

O C

Voltage

Output

3.3V

#: 8586

A R T

Related parts for LX8586-XX

LX8586-XX Summary of contents

Page 1

... CYRIX 6x86 AMD-K5 AND AMD- Output Part # Voltage LX8586/86A-00 Adjustable LX8586/86A-33 3.3V Other voltage options may be available — Please contact factory for details. Plastic TO-247 V 3-terminal LX8586-xxCV LX8586A-xxCV , CA. 92841 #: 8586 ...

Page 2

... LX8586-xx/8586A- 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° ...

Page 3

... (Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8586-xx/8586A-xx with 0° 3V 6A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) ...

Page 4

... LX8586-xx/8586A-xx The LX8586/86A series ICs are easy to use Low-Dropout (LDO) voltage regulators. They have all of the standard self-protection features expected of a voltage regulator: short circuit protection, safe operating area protection and automatic thermal shutdown if the device temperature rises above approximately 165° ...

Page 5

... Peff P where: R When the circuit is connected as shown in Figure 3, the parasitic resistance appears as its actual value, rather than the higher FIGURE 3 — CONNECTIONS FOR BEST LOAD REGULATION LX8586-xx/8586A-xx LX8586/86A OUT IN V OUT ADJ V R1 REF I ADJ 50µ ...

Page 6

... LX8586-xx/8586A-xx LOAD REGULATION (continued) Even when the circuit is optimally configured, parasitic resistance can be a significant source of error. A 100 mil wide PC trace built from 1 oz. copper-clad circuit board material has a parasitic resistance of about 5 milliohms per inch of its length at room temperature ...

Page 7

... FIGURE 6 — 5V REGULATOR WITH SHUTDOWN LX8586-33/86A-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. LX8586-xx/8586A- LX8586/86A OUT IN ADJ R1 121 C1* 10µ ...

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