LM79L

更新时间： 2023-12-18 00:00:00

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	618K
描述
3-Terminal Negative Regulators

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LM79L 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
可调性：	ADJUSTABLE	输出次数：	1
端子数量：	4	最高工作温度：	70 °C
最低工作温度：		最大输出电压 1：	-30 V
最小输出电压 1：	-2.6 V	认证状态：	Not Qualified
子类别：	Other Regulators	技术：	BIPOLAR
Base Number Matches：	1

LM79L 数据手册

February 2005

LM320L/LM79LXXAC Series

3-Terminal Negative Regulators

TO-92 package, 8-lead SOIC package, and the 6-Bump

micro SMD package. The LM320L series is available in the

3-lead TO-92 package.

General Description

The LM320L/LM79LXXAC dual marked series of 3-terminal

negative voltage regulators features fixed output voltages of

−5V, −12V, and −15V with output current capabilities in

excess of 100mA. These devices were designed using the

latest computer techniques for optimizing the packaged IC

thermal/electrical performance. The LM79LXXAC series,

even when combined with a minimum output compensation

capacitor of 0.1µF, exhibits an excellent transient response,

a maximum line regulation of 0.07% V_O/V, and a maximum

load regulation of 0.01% V_O/mA.

For output voltage other than −5V, −12V and −15V, the

LM137L series provides an output voltage range from 1.2V

to 47V.

Features

n Preset output voltage error is less than 5% overload,

line and temperature

n Specified at an output current of 100mA

n Easily compensated with a small 0.1µF output

capacitor

n Internal short-circuit, thermal and safe operating area

protection

n Easily adjustable to higher output voltages

n Maximum line regulation less than 0.07% V_OUT/V

n Maximum load regulation less than 0.01% V_OUT/mA

n See AN-1112 for micro SMD considerations

The LM320L/LM79LXXAC series also includes, as self-

protection circuitry: safe operating area circuitry for output

transistor power dissipation limiting, a temperature indepen-

dent short circuit current limit for peak output current limiting,

and a thermal shutdown circuit to prevent excessive junction

temperature. Although designed primarily as fixed voltage

regulators, these devices may be combined with simple

external circuitry for boosted and/or adjustable voltages and

currents. The LM79LXXAC series is available in the 3-lead

Typical Applications

Adjustable Output Regulator

Fixed Output Regulator

00774801

*Required if the regulator is located far from the power supply filter. A 1µF

aluminum electrolytic may be substituted.

00774803

−V = −5V − (5V/R1 + I ) • R2,

5V/R1 3 I

* Required for stability. A 1µF aluminum electrolytic may be substituted.

Connection Diagrams

6-Bump micro SMD

TO-92 Plastic Package (Z)

00774802

Bottom View

00774820

Bump Side Down

DS007748

www.national.com

12 3 4 5 6 7 8

中文翻译

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与LM79L相关器件

型号	品牌	获取价格	描述	数据表
LM79L00	FCI	获取价格	LM79L00 Series 3-Terminal Negative Output voltage Regulators
LM79L00_1	FCI	获取价格	LM79L00 Series 3-Terminal Negative Output Voltage Regulators
LM79L00D	FCI	获取价格	LM79L00 Series 3-Terminal Negative Output Voltage Regulators
LM79L00H	FCI	获取价格	LM79L00 Series 3-Terminal Negative Output Voltage Regulators
LM79L00LP	FCI	获取价格	LM79L00 Series 3-Terminal Negative Output Voltage Regulators
LM79L05	KEXIN	获取价格	Three-terminal negative voltage regulator
LM79L05	BOCA	获取价格	3-TERMINAL 0.1A NEGATIVE VOLTAGE REGULATORS
LM79L05	FCI	获取价格	LM79L00 Series 3-Terminal Negative Output voltage Regulators
LM79L05	TI	获取价格	Series 3-Terminal Negative Regulators
LM79L05	HTC	获取价格	3-TERMINAL 0.1A NEGATIVE VOLTAGE REGULATOR

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