LM323AK

更新时间： 2024-02-01 06:01:21

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器
页数	文件大小	规格书
8页	206K
描述
3-Amp, 5-Volt Positive Regulator

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LM323AK 数据手册

April 1998

LM123/LM323A/LM323

3-Amp, 5-Volt Positive Regulator

An overall worst case specification for the combined effects

of input voltage, load currents, ambient temperature, and

power dissipation ensure that the LM123 will perform satis-

factorily as a system element.

General Description

The LM123 is a three-terminal positive regulator with a pre-

set 5V output and a load driving capability of 3 amps. New

circuit design and processing techniques are used to provide

the high output current without sacrificing the regulation

characteristics of lower current devices.

For applications requiring other voltages, see LM150 series

adjustable regulator data sheet.

Operation is guaranteed over the junction temperature range

−55˚C to +150˚C for LM123, −40˚C to +125˚C for LM323A,

and 0˚C to +125˚C for LM323. A hermetic TO-3 package is

used for high reliability and low thermal resistance.

The LM323A offers improved precision over the standard

LM323. Parameters with tightened specifications include

output voltage tolerance, line regulation, and load regulation.

The 3 amp regulator is virtually blowout proof. Current limit-

ing, power limiting, and thermal shutdown provide the same

high level of reliability obtained with these techniques in the

LM109 1 amp regulator.

Features

n Guaranteed 1% initial accuracy (A version)

n 3 amp output current

No external components are required for operation of the

LM123. If the device is more than 4 inches from the filter ca-

pacitor, however, a 1 µF solid tantalum capacitor should be

used on the input. A 0.1 µF or larger capacitor may be used

on the output to reduce load transient spikes created by fast

switching digital logic, or to swamp out stray load capaci-

tance.

n Internal current and thermal limiting

n 0.01Ω typical output impedance

n 7.5V minimum input voltage

n 30W power dissipation

n P⁺Product Enhancement tested

Connection Diagram

Metal Can Package

DS007771-2

Order Number LM123K STEEL, LM323AK STEEL or LM323K STEEL

See NS Package Number K02A

Order Number LM123K/883

See NS Package Number K02C

Typical Applications

Basic 3 Amp Regulator

DS007771-3

*Required if LM123 is more than 4" from filter capacitor.

†

Regulator is stable with no load capacitor into resistive loads.

DS007771

www.national.com

12 3 4 5 6 7 8

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与LM323AK相关器件

型号	品牌	获取价格	描述	数据表
LM323AK/STEEL	ETC	获取价格	Positive Fixed Voltage Regulator
LM323AK-STEEL	NSC	获取价格	3-Amp, 5-Volt Positive Regulator
LM323AKSTEEL/NOPB	NSC	获取价格	IC,VOLT REGULATOR,FIXED,+5V,BIPOLAR,TO-204/-3,3PIN,METAL
LM323AT	ONSEMI	获取价格	3-AMPERE, 5 VOLT POSITIVE VOLTAGE REGULATORS
LM323AT	MOTOROLA	获取价格	3-AMPERE, 5 VOLT POSITIVE VOLTAGE REGULATORS
LM323ATG	ONSEMI	获取价格	5V FIXED POSITIVE REGULATOR, PSFM3, PLASTIC, POWER PACK-3
LM323H	ETC	获取价格	Positive Fixed Voltage Regulator
LM323K	NSC	获取价格	3-Amp, 5-Volt Positive Regulator
LM323K	STMICROELECTRONICS	获取价格	Three-terminal 3 A adjustable voltage regulators
LM323K STEEL	TI	获取价格	3A/5V 固定输出线性稳压器 \| NDS \| 2 \| 0 to 125

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