Datasheet > LM140LA-12

LM140LA-12

更新时间： 2024-11-22 01:05:31

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LM140LQML Series 3-Terminal Positive Regulators

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LM140LA-12 数据手册

LM140LQML

www.ti.com

SNVS381A –MARCH 2006–REVISED MAY 2013

LM140LQML Series 3-Terminal Positive Regulators

Check for Samples: LM140LQML

FEATURES

DESCRIPTION

The LM140L series of three terminal positive

regulators is available with several fixed output

voltages making them useful in a wide range of

applications. The LM140LA is an improved version of

the LM78LXX series with a tighter output voltage

tolerance (specified over the full military temperature

range), higher ripple rejection, better regulation and

lower quiescent current. The LM140LA regulators

have ±2% V_OUTspecification, 0.04%/V line regulation,

and 0.01%/mA load regulation. When used as a

zener diode/resistor combination replacement, the

LM140LA usually results in an effective output

impedance improvement of two orders of magnitude,

and lower quiescent current. These regulators can

provide local on card regulation, eliminating the

distribution problems associated with single point

regulation. The voltages available allow the LM140LA

to be used in logic systems, instrumentation, Hi-Fi,

and other solid state electronic equipment. Although

designed primarily as fixed voltage regulators, these

devices can be used with external components to

obtain adjustable voltages and currents.

•

Line Regulation of 0.04%/V

Load Regulation of 0.01%/mA

Output Voltage Tolerances of ±2% at T_j= 25°C

and ±4% over the Temperature Range

•

Output Current of 100 mA

Internal Thermal Overload Protection

Output Transistor Safe Area Protection

Internal Short Circuit Current Limit

With adequate heat sinking the regulator can deliver

100 mA output current. Current limiting is included to

limit the peak output current to a safe value. Safe

area protection for the output transistor is provided to

limit internal power dissipation. If internal power

dissipation becomes too high for the heat sinking

provided, the thermal shut-down circuit takes over,

preventing the IC from overheating.

Output Voltage Options

Device ID

LM140LA-5.0

LM140LA-12

LM140LA-15

Output Voltage

12V

15V

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...13

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与LM140LA-12相关器件

型号	品牌	获取价格	描述	数据表
LM140LA-15	TI	获取价格	LM140LQML Series 3-Terminal Positive Regulators
LM140LA-5.0	TI	获取价格	LM140LQML Series 3-Terminal Positive Regulators
LM140LAH10	TI	获取价格	IC,VOLT REGULATOR,FIXED,+10V,BIPOLAR,CAN,3PIN,METAL
LM140LAH10/883	TI	获取价格	IC,VOLT REGULATOR,FIXED,+10V,BIPOLAR,CAN,3PIN,METAL
LM140LAH10/883B	TI	获取价格	IC,VOLT REGULATOR,FIXED,+10V,BIPOLAR,CAN,3PIN,METAL
LM140LAH10/883C	TI	获取价格	IC,VOLT REGULATOR,FIXED,+10V,BIPOLAR,CAN,3PIN,METAL
LM140LAH-12	NSC	获取价格	3-Terminal Positive Regulators
LM140LAH-12	TI	获取价格	LM140L/LM340L Series 3-Terminal Positive Regulators
LM140LAH-12/883	NSC	获取价格	3-Terminal Positive Regulators
LM140LAH-12/883	TI	获取价格	LM140LQML Series 3-Terminal Positive Regulators

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