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LM140L データシート(PDF) 1 Page - Texas Instruments

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部品番号 LM140L
部品情報  LM140L/LM340L Series 3-Terminal Positive Regulators
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

LM140L データシート(HTML) 1 Page - Texas Instruments

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LM140L, LM340L
www.ti.com
SNVS758B – APRIL 1998 – REVISED MARCH 2013
LM140L/LM340L Series 3-Terminal Positive Regulators
Check for Samples: LM140L, LM340L
1
FEATURES
The LM140LA/LM340LA are available in the low
2
Line Regulation of 0.04%/V
profile metal three lead TO (NDT) and the LM340LA
Load Regulation of 0.01%/mA
are also available in the plastic TO-92 (LP). With
Output Voltage Tolerances of
adequate heat sinking the regulator can deliver 100
mA output current. Current limiting is included to limit
±2% at Tj = 25°C and ±4% Over the
the peak output current to a safe value. Safe area
Temperature Range (LM140LA)
protection for the output transistor is provided to limit
±3% Over the Temperature Range
internal
power
dissipation.
If
internal
power
(LM340LA)
dissipation becomes too high for the heat sinking
Output Current of 100 mA
provided, the thermal shut-down circuit takes over,
preventing the IC from overheating.
Internal Thermal Overload Protection
Output Transistor Safe Area Protection
For applications requiring other voltages, see LM117L
Data Sheet.
Internal Short Circuit Current Limit
Available in
Output Voltage Options
Metal TO Low Profile Package
LM140LA-5.0
5V
LM340LA-5.0
5V
(LM140LA/LM340LA)
LM140LA-12
12V
LM340LA-12
12V
Plastic TO-92 (LM340LA)
LM140LA-15
15V
LM340LA-15
15V
DESCRIPTION
The
LM140L
series
of
three
terminal
positive
Connection Diagrams
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% VOUT specification, 0.04%/V line regulation,
and 0.01%/mA load regulation. When used as a
zener diode/resistor combination replacement, the
Figure 1. TO Metal Can Package (NDT)
LM140LA usually results in an effective output
(Bottom View)
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
Figure 2. TO-92 Plastic Package (LP)
obtain adjustable voltages and currents.
(Bottom View)
1
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.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 1998–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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