Datasheet > LM340S-5.0

LM340S-5.0

更新时间： 2024-09-14 22:51:55

品牌	Logo	应用领域
美国国家半导体 - NSC		三端稳压器
页数	文件大小	规格书
17页	920K
描述
3-Terminal Positive Regulators

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LM340S-5.0 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	TO-263, 3 PIN	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.09	可调性：	FIXED
标称回动电压 1：	2 V	最大绝对输入电压：	35 V
最大输入电压：	25 V	最小输入电压：	7 V
JESD-30 代码：	R-PSSO-G3	JESD-609代码：	e0
长度：	10.16 mm	最大电网调整率：	0.05%
最大负载调整率：	0.05%	湿度敏感等级：	3
功能数量：	1	输出次数：	1
端子数量：	3	工作温度TJ-Max：	125 °C
工作温度TJ-Min：		最大输出电流 1：	1 A
最大输出电压 1：	5.25 V	最小输出电压 1：	4.75 V
标称输出电压 1：	5 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	TO-263	封装等效代码：	SIP3H,.55TB
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR	座面最大高度：	4.79 mm
子类别：	Other Regulators	表面贴装：	YES
技术：	BIPOLAR	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	2.54 mm
端子位置：	SINGLE	处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大电压容差：	5%	宽度：	8.6 mm
Base Number Matches：	1

LM340S-5.0 数据手册

November 2004

LM340/LM78XX Series

3-Terminal Positive Regulators

General Description

The 5V, 12V, and 15V regulator options are available in the

steel TO-3 power package. The LM340A/LM340/LM78XXC

series is available in the TO-220 plastic power package, and

the LM340-5.0 is available in the SOT-223 package, as well

as the LM340-5.0 and LM340-12 in the surface-mount TO-

263 package.

The

LM140/LM340A/LM340/LM78XXC

monolithic

3-terminal positive voltage regulators employ internal

current-limiting, thermal shutdown and safe-area compensa-

tion, making them essentially indestructible. If adequate heat

sinking is provided, they can deliver over 1.0A output cur-

rent. They are intended as fixed voltage regulators in a wide

range of applications including local (on-card) regulation for

elimination of noise and distribution problems associated

with single-point regulation. In addition to use as fixed volt-

age regulators, these devices can be used with external

components to obtain adjustable output voltages and cur-

rents.

Features

n Complete specifications at 1A load

n Output voltage tolerances of 2% at T_j= 25˚C and 4%

over the temperature range (LM340A)

n Line regulation of 0.01% of V_OUT/V of ∆V_INat 1A load

(LM340A)

n Load regulation of 0.3% of V_OUT/A (LM340A)

n Internal thermal overload protection

n Internal short-circuit current limit

n Output transistor safe area protection

n P⁺Product Enhancement tested

Considerable effort was expended to make the entire series

of regulators easy to use and minimize the number of exter-

nal components. It is not necessary to bypass the output,

although this does improve transient response. Input by-

passing is needed only if the regulator is located far from the

filter capacitor of the power supply.

Typical Applications

Fixed Output Regulator

Adjustable Output Regulator

00778102

00778101

= 5V + (5V/R1 + I ) R2 5V/R1 3 I ,

Q Q

OUT

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

load regulation (L ) ≈ [(R1 + R2)/R1] (L of LM340-5).

**Although no output capacitor is needed for stability, it does help transient

response. (If needed, use 0.1 µF, ceramic disc).

Comparison between SOT-223 and D-Pak (TO-252)

Packages

Current Regulator

00778103

00778138

Scale 1:1

∆I = 1.3 mA over line and load changes.

DS007781

www.national.com

12 3 4 5 6 7...17

中文翻译

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LM340S-5.0 替代型号

型号	品牌	替代类型	描述	数据表
LM340AT-5.0	NSC	完全替代	Series 3-Terminal Positive Regulators
UA7805CKTTR	TI	功能相似	POSITIVE-VOLTAGE REGULATORS

与LM340S-5.0相关器件

型号	品牌	获取价格	描述	数据表
LM340S-5.0/NOPB	TI	获取价格	LM340-N/LM78XX Series 3-Terminal Positive Regulators
LM340S-5.0P+	NSC	获取价格	3-Terminal Positive Regulators
LM340SX-12	NSC	获取价格	3-Terminal Positive Regulators
LM340SX-12	TI	获取价格	LM340-N/LM78XX Series 3-Terminal Positive Regulators
LM340SX-12/NOPB	TI	获取价格	LM340-N/LM78XX Series 3-Terminal Positive Regulators
LM340SX-5.0	TI	获取价格	LM340-N/LM78XX Series 3-Terminal Positive Regulators
LM340SX-5.0	NSC	获取价格	3-Terminal Positive Regulators
LM340SX-5.0/NOPB	TI	获取价格	LM340-N/LM78XX Series 3-Terminal Positive Regulators
LM340T012	MOTOROLA	获取价格	Regulator, 1 Output, BIPolar,
LM340T-012	MOTOROLA	获取价格	Fixed Positive Standard Regulator, 12VBIPolar, PSFM3, PLASTIC, TO-220, 3 PIN

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