LD1086XX15 datasheet(1/39 Pages) STMICROELECTRONICS

部件名	LD1086XX15

功能描述	1.5 A low drop positive voltage regulator adjustable and fixed

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 39 page

February 2008

Rev 21

1/39

39

LD1086xx

1.5 A low drop positive voltage regulator adjustable and fixed

Features

■ Typical dropout 1.3 V at 1.5 A

■ Three terminal adjustable or fixed output

voltage 1.5 V, 1.8 V, 2.5 V, 3.3 V, 3.6 V, 5 V,

8 V, 12 V

■ Automotive Grade product: adjustable VOUT

only in TO-220 and DPAK packages

■ Guaranteed output current up to 1.5A

■ Output tolerance ± 1 % at 25 °C and ± 2% in full

temperature range

■ Internal power and thermal limit

■ Wide operating temperature range

-40 °C to 125 °C

■ Package available: TO-220, D2PAK, D2PAK/A,

DPAK

■ Pinout compatibility with standard adjustable

VREG

Description

The LD1086 is a LOW DROP voltage regulator

able to provide up to 1.5 A of output current.

Dropout is guaranteed at a maximum of 1.2 V 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.

A 2.85 V 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 µF

minimum capacitor is need for stability. The

device is supplied in TO-220, D2PAK, D2PAK/A

and DPAK. On chip trimming allows the regulator

to reach a very tight output voltage tolerance,

within ± 1 % at 25 °C.

The LD1086 is available as Automotive Grade in

TO-220 and DPAK packages, for the option of

adjustable output voltage whose commercial Part

Numbers are shown in the Table 18 (order

codes). These devices are qualified according to

the specification AEC-Q100 of the Automotive

market, in the temperature range -40 °C to 125

°C, and the statistical tests PAT, SYL, SBL are

performed.

DPAK

D2PAK/A

TO-220

D2PAK

Table 1.

Device summary

Part number

LD1086XX

LD1086XX18

LD1086XX36

LD1086XX12

LD1086XX25

LD1086XX50

LD1086XX15

LD1086XX33

LD1086XX80

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