Datasheet > L4957AV25

L4957AV25

更新时间： 2024-09-25 22:22:31

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
7页	66K
描述
UP TO 5A ULDO LINEAR REGULATOR

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L4957AV25 数据手册

L4957A

UP TO 5A ULDO LINEAR REGULATOR

PRODUCT PREVIEW

1.5V, 1.8V, 2.5V AND 3.3V FIXED OUTPUT

VOLTAGE

MULTIPOWER BCD TECHNOLOGY

3V TO 14V INPUT VOLTAGE RANGE

200mΩ Rdson TYPICAL @ T^j= 125°C

0.6V max. DROP-OUT AT 2A

EXCELLENT LOAD REGULATION

0.6mAQUIESCENTCURRENT AT ANYLOAD

SHORT CIRCUIT PROTECTION

THERMAL SHUTDOWN

Versawatt TO-220

D²PAK

ORDERING NUMBERS:

APPLICATIONS

L4957AV1.5

L4957AV1.8

L4957AV2.5

L4957AV3.3

L4957AD1.5

L4957AD1.8

L4957AD2.5

L4957AD3.3

MOTHER BOARDS

PROCESSOR I/O & SUPPLIES

LOW VOLTAGE MEMORY & CHIP SET SUP-

PLIES

GRAPHIC & SOUND CARDS

LOW VOLTAGE LOGIC SUPPLIES

POST REGULATOR FOR SMPS

plies required by processor, for example they are

the cost effective and efficient solution for conver-

sion from 3.3V (rail bus) to 2.5V @ 2.5A or to

1.5V with high current rating.

Fast response transient minimise the output ca-

pacitor value. A minimum of 22µF assures the

stability in all load conditions.

DESCRIPTION

The L4957A devices are Ultra Low Drop Output

linear regulators with an internal N-channel MOS

of 200mΩ particulary suitable for low voltage/low

dropout applications.

The on-chip trimming technique offers a tighter

voltage reference tolerance (with ± 2% including

line and load variation) beside to ensure a con-

trolled short circuit current. Thermal shutdown

provides protection against overload conditions

that creates excessive junction temperature.

Operating with a input voltage from 3V to 14V

they are capable to deliver up to 5A.

The devices are ideal for use as one of the sup-

TYPICAL APPLICATION

V_OUT

3V to 14V

OUT

L4957A

GND

D00IN1107A

1/7

May 2000

This is preliminary information on a new product now in development. Details are subject to change without notice.

12 3 4 5 6 7

中文翻译

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