D E S C R I P T I O N

KEY FEAT U R E S

The LX8386/86A/86B series ICs are

positive regulators designed to provide

1.5A 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 this

product, the dropout voltage is fully

specified as a function of load current.

Dropout is guaranteed at a maximum of

1.3V (LX8386A/86B) and 1.5V (LX8386)

at maximum output current, decreasing

at lower load currents. On-chip

trimming adjusts the reference voltage

to 1% (0.8% for the 8386B) initial

accuracy and 2% (1% for the 8386B)

over line, load and temperature.

The LX8386/86A/86B series devices

are pin-compatible with earlier 3-

terminal regulators, such as 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.

The LX8386/86A/86B series quiescent

current flows into the load, increasing

efficiency. This feature contrasts with

PNP regulators, where up to 10% of the

output current is wasted as quiescent

current. The LX8386-xxI is specified

over the full industrial temperature

range of -25°C to +125°C and the

LX8386/86A/86B-xxC is specified over

the commercial range of 0°C to +125°C.

I

Three-Terminal Adjustable or Fixed

Output

I

Guaranteed <1.3V Headroom

at 1.5A (LX8386A/86B)

I

Output Current of 1.5A Minimum

I

Operates Down to 1V Dropout

p

0.015% Line Regulation

p

0.1% Load Regulation

I

Evaluation Board Available:

Request

LXE9001 EVALUATION KIT

APPLICATIONS

I

High Efficiency Linear Regulators

I

Post Regulators For Switching Power

Supplies

I

Battery Chargers

I

Constant Current Regulators

I

ASIC & Low Voltage IC Supplies

I

Memory Cards

I

Graphics & Sound Chipsets

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

3.3V, 1.5A R

EGULATOR

LX8386

200

1%

1%

3.3V at 1.5A

5V

OUT

IN

ADJ

1500μF

6MV1500GX

1500μF, 6.3V

6MV1500GX

from Sanyo

121

1.5A L

OW

D

ROPOUT

P

OSITIVE

R

E G U L AT O R S

P

R O D U C T I O N

D

A T A

S

H E E T

T

H E

I

N F I N I T E

P

O W E R

O F

I

N N O V A T I O N

LX8386-xx/8386A-xx/8386B-xx

LIN D

OC

#: 8386

LX8386/86A/86B-00

LX8386/86A/86B-33

Other voltage options may be available —

Please contact factory for details.

Adjustable

3.3V

Part #

Output

Voltage

A

VAILABLE

O

PTIONS

PER

P

ART

#

Note: All surface-mount packages are available in Tape & Reel, append the letter "T" to part number. (i.e. LX8386A-xxCDDT)

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

PA C K A G E O R D E R I N F O R M AT I O N

Plastic TO-220

3-pin

1.5V

LX8386-xxCP

1.3V

LX8386A-xxCP

1.3V

LX8386B-xxCP

1.5V

LX8386-xxIP

T

A

(°C)

P

Plastic TO-263

3-pin

LX8386-xxCDD

LX8386A-xxCDD

LX8386B-xxCDD

LX8386-xxIDD

DD

2.0%

2.0%

1.0%

2.0%

LX8386-xxCDT

LX8386A-xxCDT

LX8386B-xxCDT

—

0 to 125

-25 to 125

Max. Dropout

Voltage

Max. Ref.

Accuracy

NOTE:

For current data & package dimensions, visit our web site:

http://www.linfinity.com.

Copyright 1999

Rev. 1.7a 10/00

1

L

I N

F

I N I T Y

M

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

I

N C

.

Plastic T0-252

(D-Pak) 3-pin

DT