Datasheet > L4955V3.3

L4955V3.3

更新时间： 2024-11-13 22:18:59

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
14页	144K
描述
5A ULDO LINEAR REGULATORS FAMILY

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

L4955V3.3 数据手册

L4955

5A ULDO LINEAR REGULATORS FAMILY

UP TO 5A OUTPUT CURRENT

2% PRECISE OUTPUT VOLTAGES

MULTIPOWER BCD TECHNOLOGY

FAST TRANSIENT RESPONSE

0.75V TYP. DROP OUT VOLTAGEAT 5A

OPERATING INPUT VOLTAGEFROM 4.5V

ADJUSTABLE VERSION:

• V_O= 1.26V

• INHIBIT (I_Q= 120µA TYP.)

HEPTAWATT

VERSAWATT

(TO-220)

POWER GOOD

PROGRAMMABLECURRENT LIMIT

•

OUTPUT

VOLTAGE

• HEPTAWATT PACKAGE

FIXED VERSION:

ORDERING

NUMBERS

PACKAGE

• 3.3V, 5.1V OUTPUTS

L4955

1.26V ADJ

3.3V

HEPTAWATT

VERSAWATT

VERSAWATT PACKAGE

•

L4955V3.3

L4955V5.1

VERYLOW QUIESCENT CURRENT

SHORT CIRCUIT PROTECTION (Foldback

function)

5.1V

The dropout voltage is only 0.75V (Typ.) at 5A, di-

rectly dependenton the output current conditions.

THERMAL SHUTDOWN

Realized in BCDII technology, it has on board a

charge pump to properly drive an N-channel

APPLICATIONS

PENTIUM AND POWER PC SUPPLIES

power mos Transistor with 150m of R

Ω

DSON

POSTREGULATOR FOR SMPS

LOW COST SOLUTION FOR 5V TO 3.3V

CONVERSION

It operates from a 4.5V minimum supply, with a

very low quiescent current irrespective of the

load; a minimum of 22µF output capacitor is re-

quired for stability.

LOW COST BATTERY CHARGER

CONSTANT CURRENT REGULATOR

The on-chip trimming techniques improve the pre-

SUITABLE

FOR

APPLICATION WITH

cision of the available output voltages to 2%.

STANDBY FEATURE

Ancillary functions like power good, inhibit with

low power consumption, programmable output

voltage and current limiting make the flexible

heptawatt version usable in applications where

power management, stand-by, features, post

regulation and adjustable current generators for

battery chargers are important.

DESCRIPTION

The L4955 is a family of monolithic ultra very low

drop linear regulators designed to supply the

most recent microprocessors.

TYPICAL APPLICATIONS

INH

OUT

ADJ

OUT

V_IN

V_OUT

V_IN

V_OUT

L4955

L4955VXXX

GND

D97IN590

D97IN589

1/14

February 1999

12 3 4 5 6 7...14

中文翻译

下载PDF

与L4955V3.3相关器件

型号	品牌	获取价格	描述	数据表
L4955V-3.3	STMICROELECTRONICS	获取价格	3.3V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSFM3, VERSAWATT-3
L4955V33	STMICROELECTRONICS	获取价格	5A ULDO LINEAR REGULATORS FAMILY
L4955V5.1	STMICROELECTRONICS	获取价格	5A ULDO LINEAR REGULATORS FAMILY
L4955V-5.1	STMICROELECTRONICS	获取价格	5.1V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSFM3, VERSAWATT-3
L4955V51	STMICROELECTRONICS	获取价格	5A ULDO LINEAR REGULATORS FAMILY
L4956	STMICROELECTRONICS	获取价格	5A LOW DROP LINEAR REGULATOR
L4957	STMICROELECTRONICS	获取价格	UP TO 4A ULDO LINEAR REGULATOR
L4957A	STMICROELECTRONICS	获取价格	UP TO 5A ULDO LINEAR REGULATOR
L4957A_06	STMICROELECTRONICS	获取价格	Up to 5A ULDO linear regulator
L4957AD1.5	STMICROELECTRONICS	获取价格	UP TO 5A ULDO LINEAR REGULATOR