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LD1086

SERIES

1.5A LOW DROP POSITIVE VOLTAGE

REGULATOR ADJUSTABLE AND FIXED

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TYPICAL DROPOUT 1.3V AT 1.5A

THREE TERMINAL ADJUSTABLE OR FIXED

OUTPUT VOLTAGE 1.5V, 1.8V, 2.5V, 2.85V,

3.3V, 3.6V, 5V, 8V, 9V, 12V.

GUARANTEED OUTPUT CURRENT UP TO

1.5A

OUPUT TOLERANCE

鹵1%

AT 25擄C AND

鹵2%

IN FULL TEMPERATURE RANGE

INTERNAL POWER AND THERMAL LIMIT

WIDE OPERATING TEMPERATURE RANGE

-40擄C TO 125擄C

PACKAGE AVAILABLE: TO-220, D

2

PAK,

D

2

PAK/A, DPAK

PINOUT COMPATIBILITY WITH STANDARD

ADJUSTABLE VREG

TO-220

DPAK

D

2

PAK

D

2

PAK/A

DESCRIPTION

The LD1086 is a LOW DROP Voltage Regulator

able to provide up to 1.5A of Output Current.

Dropout is guaranteed at a maximum of 1.2V at

the maximum output current, decreasing at lower

loads. The LD1086 is pin to pin compatible with

the older 3-terminal adjustable regulators, but has

better performances in term of drop and output

tolerance.

Table 1: Order Codes

TO-220

LD1086V15

LD1086V18

LD1086V25

LD1086V28

LD1086V33

LD1086V36

LD1086V50

LD1086V80

LD1086V90

LD1086V12

LD1086V

D

2

PAK (*)

LD1086D2T15

LD1086D2T18

LD1086D2T25

LD1086D2T28

LD1086D2T33

LD1086D2T36

LD1086D2T50

LD1086D2T80

LD1086D2T90

LD1086D2T12

LD1086D2T

A 2.85V output version is suitable for SCSI-2

active termination. Unlike PNP regulators, where

a part of the output current is wasted as quiescent

current, the LD1086 quiescent current flows into

the load, so increase efficiency. Only a 10碌F

minimum capacitor is need for stability. The

device is supplied in TO-220, D

2

PAK, D

2

PAK/A

and DPAK. On chip trimming allows the regulator

to reach a very tight output voltage tolerance,

within 鹵1% at 25擄C.

D

2

PAK/A (*)

LD1086D2M15

LD1086D2M18

LD1086D2M25

LD1086D2M28

LD1086D2M33

LD1086D2M36

LD1086D2M50

LD1086D2M80

LD1086D2M90

LD1086D2M12

LD1086D2M

DPAK (*)

LD1086DT15

LD1086DT18

LD1086DT25

LD1086DT28

LD1086DT33

LD1086DT36

LD1086DT50

LD1086DT80

LD1086DT90

LD1086DT12

LD1086DT

OUTPUT VOLTAGE

1.5 V

1.8 V

2.5 V

2.85 V

3.3 V

3.6 V

5.0 V

8.0 V

9.0 V

12.0 V

ADJ

(*) Available in Tape & Reel with the suffix "TR".

February 2005

Rev. 13

1/21

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