Microsemi Corporation LX8586A-33CV, LX8586A-33CP, LX8586A-00CV, LX8586A-00CP, LX8586-33CV Datasheet

LIN DOC #:

8586

LX8586-xx/8586A-xx

THE INFINITE POWER OF INNOVATION

DESCRIPTION KEY FEATURES

The LX8586/86A series ICs are low
dropout three-terminal regulators with
a minimum of 6A output current.
Pentium
Cyrix

®

Processor, Power PCTM,

®

6x86TM and AMD-K5TM 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
and TO-247 power packages.

Along with the standard µP supply
applications, the LX8586 series of
products are ideal for Pentium
Processor applications such as GTL+
Bus terminators (see application below).

PRODUCT HIGHLIGHT

1.5V, 6A REGULATOR

H.S. (Note A)

From Silverbox

Power Supply

3.3V

1500µF

Sanyo

6MV1500GX

IN

LX8586

ADJ

24.3
±1%

OUT

121
±1%

Ω

A PPLICATION OF LX8586 AS 1.5V GTL+ BUS TERMINATOR

Ω

6A LOW D

1.5V/6A

4x 1500µF
Sanyo
6MV1500GX

ROPOUT POSITIVE REGULATORS

P RODUCTION DAT A SHEET

■ 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

p FAST TRANSIENT RESPONSE
p 1% VOLTAGE REFERENCE INITIAL

ACCURACY

p OUTPUT SHORT CIRCUIT PROTECTION
p BUILT-IN THERMAL SHUTDOWN

■ EVALUATION BOARD AVAILABLE:

®

Pro

To GTL+
Terminator

REQUEST LXE9001 EVALUATION KIT

APPLICATIONS

■ 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

TM

TM

AND AMD-K6

TM

AVAILABLE OPTIONS PER PART #

Part #

LX8586/86A-00 Adjustable
LX8586/86A-33 3.3V

Other voltage options may be available —

Please contact factory for details.

Output

Voltage

Note A: See application note, page 3.

Copyright © 1996
Rev. 1.0 12/96

PACKAGE ORDER INFORMATION

T

(°C)

A

0 to 125

Dropout

Voltage

Plastic TO-220

P

3-pin

1.3V LX8586-xxCP LX8586-xxCV

1.1V LX8586A-xxCP LX8586A-xxCV

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

Plastic TO-247

V

3-terminal

FOR FURTHER INFORMATION CALL [phone]

11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841

1

PRODUCT DATABOOK 1996/1997

LX8586-xx/8586A-xx

6A LOW D

P

ROPOUT POSITIVE REGULATORS

RODUCTION DATA SHEET

ABSOLUTE MAXIMUM RATINGS (Note 1)

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. Currents are positive into, negative out of the specified terminal.

THERMAL DATA

P PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθ

θ

θθ

JT

θθ

θ

θθ

JA

V PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

Junction Temperature Calculation: TJ = TA + (P

numbers are guidelines for the thermal performance of the device/pc-board system.

The θ

JA

All of the above assume no ambient airflow.

θθ

θ

θθ

JT

θθ

θ

θθ

JA

x θ

).

D

JA

2.7°C/W

60°C/W

1.6°C/W

35°C/W

PACKAGE PIN OUTS

TAB IS V

OUT

3

2

1

P PACKAGE

(Top View)

* Pin 1 is GND for fixed voltage versions.

TAB ON REVERSE SIDE IS V

3

2

1

V PACKAGE

(Top View)

* Pin 1 is GND for fixed voltage versions.

V

V

ADJ / GND*

OUT

V

ADJ / GND*

IN

OUT

V

IN

OUT

2

Copyright © 1996

Rev. 1.0 12/96

PRODUCT DATABOOK 1996/1997

LX8586-xx/8586A-xx

6A LOW D

ROPOUT POSITIVE REGULATORS

P RODUCTION DATA SHEET

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8586-xx/8586A-xx with 0°C ≤ TA ≤ 125°C;
VIN - V

LX8586-00/86A-00 (Adjustable)

= 3V; I

OUT

Reference Voltage V

= 6A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)

OUT

Parameter

Symbol

REFIOUT

10mA ≤ I

Line Regulation (Note 2)
Load Regulation (Note 2)

Thermal Regulation

∆V

∆V

∆V

)

I

REF(VIN

)

VIN - V

REF(IOUT

(Pwr)

TA = 25°C, 20ms pulse

OUT

Ripple Rejection (Note 3) V

C

Adjust Pin Current I

Adjust Pin Current Change ∆I

ADJ

ADJ

10mA ≤ I

Dropout Voltage LX8586-00 ∆V ∆V

LX8586A-00 ∆V

Minimum Load Current I
Maximum Output Current I

Temperature Stability ∆V
Long Term Stability ∆V

RMS Output Noise (% of V

)V

OUT

OUT(MIN)VIN

OUT(MAX)

OUT (RMS)TA

1.4V ≤ (V

(T)

OUT

(t) TA = 125°C, 1000 hrs

OUT

Test Conditions Units

= 10mA, TA = 25°C

≤ 6A, 1.5V ≤ (V

OUT

= 10mA, 1.5V ≤ (V

OUT

= 3V, 10mA ≤ I

OUT

= 3.3V, f =120Hz, C

OUT

= 10µF, TA = 25°C, I

ADJ

≤ 6A, 1.5V ≤ (V

OUT

= 1%, I

REF

REF

= 1%, I

OUT

OUT

≤ 7V

- V

IN

= 25°C, 10Hz ≤ f ≤ 10kHz

OUT

= 6A
= 6A

), V

IN

IN

≤ 7V

- V

), V

OUT

IN

OUT

≤ 7V

), V

IN

IN

≤ 7V, P ≤ P

≤ 7V

IN

- V

), V

OUT

≤ 6A

OUT

= 100µf Tantalum, VIN = 5V

OUT

= 6A

OUT

- V

IN

MAX

LX8586/86A-00

Min. Typ. Max.

1.238 1.250 1.262 V

1.225 1.250 1.275 V

0.035 0.2 %

0.1 0.5 %

0.01 0.02 %/W

60 83 dB

55 100 µA

0.2 5 µA

1.1 1.3 V

0.9 1.1 V
210mA

6.1 8 A

0.25 %

0.3 1 %

0.003 %

LX8586-33/86A-33 (3.3V Fixed)

Parameter

Output Voltage V

Line Regulation (Note 2) ∆V

Load Regulation (Note 2)

Thermal Regulation (Note 3)
Ripple Rejection (Note 3) C
Quiescent Current I

Dropout Voltage LX8586-33 ∆V ∆V

LX8586A-33 ∆ V

Maximum Output Current I

Temperature Stability (Note 3) ∆V
Long Term Stability (Note 3) ∆V

RMS Output Noise (% of V

) (Note 3) V

OUT

Symbol

OUTVIN

(V

∆V

OUT(IOUT

∆V

OUT

OUT (MAX)VIN

OUT

OUT

OUT (RMS)TA

= 5V, I

OUT

4.75V ≤ VIN ≤ 10V, 0mA ≤ I

4.75V ≤ VIN ≤ 7V

OUT

)

IN

4.75V ≤ VIN ≤ 10V

)

V

= 5V, 10mA ≤ I

IN

(Pwr)

TA = 25°C, 20ms pulse

= 100µF (Tantalum), I

OUT

0mA ≤ I

Q

= 1%, I

OUT

= 1%, I

OUT

OUT

≤ 7A

(T)
(t) TA = 125°C, 1000 hours

= 25°C, 10Hz ≤ f ≤ 10kHz

Test Conditions Units

= 0mA, TA = 25°C

≤ I

OUT

OUT (MAX)

≤ I

, 4.75V ≤ VIN ≤ 10V

OUT (MAX)

≤ I

OUT

OUT (MAX)

≤ I

OUT

OUT (MAX)

≤ 6A, P ≤ P

OUT

= 6A, TA = 25°C

OUT

MAX

Note 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to

heating effects are covered under the specification for thermal regulation.

Note 3. These parameters, although guaranteed, are not tested in production.

LX8586-33/86A-33

Min. Typ. Max.

3.267 3.3 3.333 V

3.235 3.3 3.365 V
16mV

210mV
515mV

0.01 0.02 % / W

65 83 dB

410mA

1.1 1.3 V

0.9 1.1 V

6.1 8 A

0.25 %

0.3 1 %

0.003 %

Copyright © 1996
Rev. 1.0 12/96

3