Datasheet > LM3490_07

LM3490_07

更新时间： 2024-11-10 04:44:27

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
12页	309K
描述
100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF

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中文翻译

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LM3490_07 数据手册

June 2007

LM3490

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage

Regulator with Logic-Controlled ON/OFF

General Description

Key Specifications

The LM3490 is an integrated linear voltage regulator. It fea-

tures operation from an input as high as 30V and a guaran-

teed maximum dropout of 1.2V at the full 100 mA load.

Standard packaging for the LM3490 is the 5-lead SOT-23

package. A logic-controlled ON/OFF feature makes the

LM3490 ideal for powering subsystems ON and OFF as need-

ed.

30V maximum input for operation

■

1.2V guaranteed maximum dropout over full load and

temperature ranges

100 mA guaranteed load current

■

±5% guaranteed output voltage tolerance over full load

and temperature ranges

−40 to +125°C junction temperature range for operation

■

The 5, 12, and 15V members of the LM3490 series are in-

tended as tiny alternatives to industry standard LM78LXX

series and similar devices. The 1.2V quasi low dropout of

LM3490 series devices makes them a nice fit in many appli-

cations where the 2 to 2.5V dropout of LM78LXX series

devices precludes their (LM78LXX series devices) use.

Features

3.3, 5, 12, and 15V versions available

■

Logic-controlled ON/OFF

Packaged in the tiny 5-lead SOT-23 package

The LM3490 series features a 3.3V member. The SOT pack-

aging and quasi low dropout features of the LM3490 series

converge in this device to provide a very nice, very tiny 3.3V,

100 mA bias supply that regulates directly off the system 5V

±5% power supply.

Applications

Tiny alternative to LM78LXX series and similar devices

■

Tiny 5V±5% to 3.3V, 100 mA converter

Post regulator for switching DC/DC converter

Bias supply for analog circuits

Typical Application Circuit

10007102

Connection Diagram

10007101

Top View

SOT-23 Package

5-Lead, Molded-Plastic Small-Outline Transistor (SOT) Package

Package Code MF05A(Note 1)

100071

www.national.com

12 3 4 5 6 7...12

中文翻译

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与LM3490_07相关器件

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LM34902	TI	获取价格	300mA Current Limited Power Switch
LM34902ITMX/NOPB	TI	获取价格	5.3-V, 0.3-A, 0.64-mΩ, load switch 6-DSBGA -40 to 85
LM34904	TI	获取价格	500mA Current Limited Power Switch
LM3490IM5-12	TI	获取价格	LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-
LM3490IM5-12	NSC	获取价格	100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF
LM3490IM5-15	NSC	获取价格	100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF
LM3490IM5-3.3	NSC	获取价格	100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF
LM3490IM5-3.3	TI	获取价格	LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-
LM3490IM5-3.3/NOPB	NSC	获取价格	IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO5, PLASTIC, SOT-23, 5 PIN,
LM3490IM5-3.3/NOPB	TI	获取价格	100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF 5-

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