LD1085D2T28-R

更新时间： 2024-10-01 22:47:15

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		调节器
页数	文件大小	规格书
19页	776K
描述
3A LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS

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LD1085D2T28-R 数据手册

LD1085

SERIES

3A LOW DROP POSITIVE VOLTAGE

REGULATOR ADJUSTABLE AND FIXED

TYPICAL DROPOUT 1.3V (AT 3A)

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

OUPUT TOLERANCE ± 1% AT 25°C AND

± 2% IN FULL TEMPERATURE RANGE

TO-220

TO-220FP

INTERNAL POWER AND THERMAL LIMIT

WIDE OPERATING TEMPERATURE RANGE

-40°C TO 125°C

PACKAGE AVAILABLE: TO-220, TO-220FP

D PAK, D PAK/A

D PAK

D PAK/A

PINOUT COMPATIBILITY WITH STANDARD

ADJUSTABLE VREG

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 LD1085 quiescent current flows into

the load, so increase efficiency. Only a 10µF

minimum capacitor is need for stability.

DESCRIPTION

The LD1085 is a LOW DROP Voltage Regulator

able to provide up to 3A of Output Current.

Dropout is guaranteed at a maximum of 1.2V at

the maximum output current, decreasing at lower

loads. The LD1085 is pin to pin compatible with

the older 3-terminal adjustable regulators, but has

better performances in term of drop and output

tolerance.

The device is supplied in TO-220, TO-220FP,

D PAK and D PAK/A. On chip trimming allows the

regulator to reach a very tight output voltage

tolerance, within ±1% at 25°C.

Figure 1: Schematic Diagram

Rev. 14

1/19

March 2005

12 3 4 5 6 7...19

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