LX8384-15 MICROSEMI [Microsemi Corporation], LX8384-15 Datasheet

LX8384-15

Manufacturer Part Number

LX8384-15

Description

5A LOW DROPOUT POSITIVE REGULATORS

Manufacturer

MICROSEMI [Microsemi Corporation]

Datasheet

1.LX8384-15.pdf (8 pages)

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Rev. 1.9

H E

An application of the LX8384A for the Pentium P54C processors meeting VRE specfication.

The LX8384/84A/84B Series ICs are posi-

tive regulators designed to provide 5A

output current. These regulators yield

higher efficiency than currently available

devices with all internal circuitry designed

to operate down to a 1V input-to-output

differential. In each of these products,

the dropout voltage is fully specified as

a function of load current. Dropout is

guaranteed at a maximum of 1.3V

(8384A) and 1.5V (8384) at maximum

output current, decreasing at lower load

currents.

the reference voltage tolerance to 1%

maximum at room temperature and 2%

maximum over the 0 to 125°C range

for the LX8384A, making this ideal for

the Pentium P54C-VRE specification.

The LX8384B offers 0.8% tolerance at

room temperature and 1.0% maximum

over line, load and temperature.

IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.

6MV1500GX

In addition, on-chip trimming adjusts

12/97

N F I N I T E

1500µF

Sanyo

11861 W

Note: All surface-mount packages are available in Tape & Reel, append the letter "T" to part number.

-25 to 125

O W E R

0 to 125

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

(°C)

LX8384A

ESTERN

3.5V, 5A R

(i.e. LX8384A-xxCDDT) "xx" refers to output voltage, please see table above.

D E S C R I P T I O N

O F

ADJ

I N

Max. Ref.

Accuracy

VENUE

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

2.0%

1.0%

2.0%

N N O V A T I O N

I N I T Y

, G

OUT

E G U L AT O R

Fixed versions are also available and

specified in the Available Options table

below.

are pin-compatible with earlier 3-

terminal regulators, such as the 117 series

products. While a 10µF output capacitor

is required on both input and output of

these new devices, this capacitor is

generally included in most regulator

designs.

current flows into the load, thereby

increasing efficiency.

constrasts with PNP regulators where up

to 10% of the output current is wasted as

quiescent current.

specified over the industrial temperature

range of -25°C to 125°C, while the

L X 8 3 8 4 - x x C / 8 4 A - x x C / 8 4 B - x x C i s

specified over the commercial range of

0°C to 125°C.

ARDEN

The LX8384/84A/84B Series devices

The LX8384/84A/84B Series quiescent

Max. Dropout

121

0.1%

218

0.1%

Voltage

1.5V

1.3V

1.5V

ROVE

I C R O E L E C T R O N I C S

, CA. 92841, 714-898-8121, F

Capacitors must

have < 20m Total ESR.

LX8384-xx/8384A-xx/8384B-xx

1500µF

5x 6MV1500GX

Sanyo

The LX8384-xxI is

3.5V at 5A

LX8384A-xxCP

LX8384B-xxCP

Plastic TO-220

3-pin

LX8384-xxCP

LX8384-xxIP

5 A L

This feature

O W

R O D U C T I O N

R O P O U T

LX8384A-xxCDD

LX8384B-xxCDD

LX8384-xxCDD

N C

LX8384-xxIDD

Plastic TO-263

3-pin

p 0.015% LINE REGULATION

p 0.15% LOAD REGULATION

Other voltage options may be available —

VA I L A B L E

Part #

LX8384/84A/84B-00

LX8384/84A/84B-15

LX8384/84A/84B-33

: 714-893-2570

THREE-TERMINAL ADJUSTABLE OR FIXED

OUTPUT

GUARANTEED < 1.3V HEADROOM AT 5A

(LX8384A-xx)

GUARANTEED 2.0% MAX. REFERENCE

TOLERANCE (LX8384A-xx)

GUARANTEED 1.0% MAX. REFERENCE

TOLERANCE (LX8384B-xx)

OUTPUT CURRENT OF 5A MINIMUM

PENTIUM

HIGH EFFICIENCY LINEAR REGULATORS

POST REGULATORS FOR SWITCHING POWER

SUPPLIES

BATTERY CHARGERS

CONSTANT CURRENT REGULATORS

CYRIX

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

6x86

A T A

PROCESSOR VRE APPLICATIONS

P T I O N S P E R

L I N D

E G U L A T O R S

H E E T

O C

Adjustable

Voltage

# : 8384

Output

1.5V

3.3V

A R T

Related parts for LX8384-15

LX8384-15 Summary of contents

Page 1

... LX8384A 5V * 1500µF ADJ 6MV1500GX Sanyo An application of the LX8384A for the Pentium P54C processors meeting VRE specfication. T (° 125 -25 to 125 Note: All surface-mount packages are available in Tape & Reel, append the letter "T" to part number. (i.e. LX8384A-xxCDDT) "xx" refers to output voltage, please see table above. ...

Page 2

... LX8384-xx/8384A-xx/8384B- LUT E MAXIMU M RATINGS Power Dissipation .................................................................................. Internally Limited Input Voltage ................................................................................................................ 10V Input to Output Voltage Differential ........................................................................... 10V Operating Junction Temperature Hermetic (K - Package) ........................................................................................ 150°C Plastic (DD - Package) .......................................................................................... 150°C Storage Temperature Range ...................................................................... -65° ...

Page 3

... LX8384-00 LX8384A/84B-00 Minimum Load Current Maximum Output Current Temperature Stability (Note 3) Long Term Stability (Note 3) RMS Output Noise (% (Note 3) V OUT LX8384-15 / 8384A-15 / 8384B-15 (1.5V Fixed) Parameter Symbol Output Voltage LX8384/84A-15 (Note 4) LX8384B-15 Line Regulation (Note 2) Load Regulation (Note 2) Thermal Regulation ...

Page 4

... LX8384-xx/8384A-xx/8384B- LX8384-33 / 8384A-33 / 8384B-33 (3.3V Fixed) Parameter Output Voltage LX8384/84A-33 (Note 4) LX8384B-33 Line Regulation (Note 2) Load Regulation (Note 2) ...

Page 5

... Use of an output capacitor is REQUIRED with the LX8384/84A/ 84B series. Please see the table below for recommended minimum capacitor values. ...

Page 6

... I R2 OUT REF ADJ R1 FIGURE 2 — BASIC ADJUSTABLE REGULATOR LX8384/84A/84B regulators are three-terminal devices, R2+ Actual parasitic line resistance Parasitic LX8384/84A/84B Line Resistance OUT IN Connect ADJ R1 to Case of Regulator OUT . Peff R L Connect R2 to Load Copyright © 1997 Rev. 1.9 ...

Page 7

... Thermal compound at the case-to- heat-sink interface is strongly recommended. If the case of the device must be electrically isolated, a thermally conductive spacer Copyright © 1997 Rev. 1.9 12/97 LX8384-xx/8384A-xx/8384B- ...

Page 8

... FIGURE 6 — 5V REGULATOR WITH SHUTDOWN LX8384/84A/84B-33 V OUT IN IN GND FIGURE 7 — FIXED 3.3V OUTPUT REGULATOR ) DROPOUT (MAX) Pentium is a registered trademark of Intel Corporation LX8384/84A/84B OUT IN ADJ R1 121 C1* 10µ Needed if device is far from filter capacitors 1.25V 1 + OUT R1 FIGURE 5 — ...

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