Datasheet > LM340L

LM340L

更新时间： 2024-11-26 12:33:43

品牌	Logo	应用领域
德州仪器 - TI		三端稳压器
页数	文件大小	规格书
14页	406K
描述
LM140L/LM340L Series 3-Terminal Positive Regulators

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LM340L 数据手册

LM140L, LM340L

www.ti.com

SNVS758B –APRIL 1998–REVISED MARCH 2013

LM140L/LM340L Series 3-Terminal Positive Regulators

Check for Samples: LM140L, LM340L

FEATURES

The LM140LA/LM340LA are available in the low

•

Line Regulation of 0.04%/V

Load Regulation of 0.01%/mA

Output Voltage Tolerances of

profile metal three lead TO (NDT) and the LM340LA

are also available in the plastic TO-92 (LP). 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.

–

±2% at T_j= 25°C and ±4% Over the

Temperature Range (LM140LA)

–

±3% Over the Temperature Range

(LM340LA)

•

Output Current of 100 mA

Internal Thermal Overload Protection

Output Transistor Safe Area Protection

Internal Short Circuit Current Limit

Available in

For applications requiring other voltages, see LM117L

Data Sheet.

Output Voltage Options

–

Metal TO Low Profile Package

(LM140LA/LM340LA)

LM140LA-5.0

LM140LA-12

LM140LA-15

LM340LA-5.0

LM340LA-12

LM340LA-15

12V

15V

12V

15V

–

Plastic TO-92 (LM340LA)

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.

Connection Diagrams

Figure 1. TO Metal Can Package (NDT)

(Bottom View)

Figure 2. TO-92 Plastic Package (LP)

(Bottom View)

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...14

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LM340L 替代型号

型号	品牌	替代类型	描述	数据表
LM330-N	TI	功能相似	LM330 3-Terminal Positive Regulator
LM317L-N	TI	功能相似	LM317L 3-Terminal Adjustable Regulator
LM78L05	TI	功能相似	LM78LXX Series 3-Terminal Positive Regulators

与LM340L相关器件

型号	品牌	获取价格	描述	数据表
LM340LAH-12	NSC	获取价格	3-Terminal Positive Regulators
LM340LAH-12/NOPB	TI	获取价格	IC VREG 12 V FIXED POSITIVE REGULATOR, MBCY3, ROHS COMPLIANT, METAL CAN, TO-39, 3 PIN, Fix
LM340LAH-15	NSC	获取价格	3-Terminal Positive Regulators
LM340LAH-5.0	NSC	获取价格	3-Terminal Positive Regulators
LM340LAH-5.0/NOPB	TI	获取价格	5V FIXED POSITIVE REGULATOR, MBCY3, ROHS COMPLIANT, METAL CAN, TO-39, 3 PIN
LM340LAH-6.0	ETC	获取价格	Positive Fixed Voltage Regulator
LM340LAH-8.0	ETC	获取价格	Positive Fixed Voltage Regulator
LM340LAZ-12	NSC	获取价格	3-Terminal Positive Regulators
LM340LAZ-15	NSC	获取价格	3-Terminal Positive Regulators
LM340LAZ-15X	TI	获取价格	15 V FIXED POSITIVE REGULATOR, PBCY3

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