LM140L, LM340L
www.ti.com
SNVS758B – APRIL 1998 – REVISED MARCH 2013
LM140L/LM340L Series 3-Terminal Positive Regulators
Check for Samples: LM140L, LM340L
FEATURES
1
•
•
•
2
•
•
•
•
•
Line Regulation of 0.04%/V
Load Regulation of 0.01%/mA
Output Voltage Tolerances of
– ±2% at Tj = 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
– Metal TO Low Profile Package
(LM140LA/LM340LA)
– 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% VOUT specification, 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.
The LM140LA/LM340LA are available in the low
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.
For applications requiring other voltages, see LM117L
Data Sheet.
Output Voltage Options
LM140LA-5.0
5V
LM340LA-5.0
5V
LM140LA-12
12V
LM340LA-12
12V
LM140LA-15
15V
LM340LA-15
15V
Connection Diagrams
Figure 1. TO Metal Can Package (NDT)
(Bottom View)
Figure 2. TO-92 Plastic Package (LP)
(Bottom View)
1
2
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.
Copyright © 1998–2013, Texas Instruments Incorporated
LM140L, LM340L
SNVS758B – APRIL 1998 – REVISED MARCH 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings (1) (2) (3)
Input Voltage
35V
Internal Power Dissipation (4)
Internally Limited
Operating Temperature Range
LM140LA
−55°C to +125°C
LM340LA
0°C to +70°C
Maximum Junction Temperature
+150°C
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
(1)
(2)
(3)
(4)
Metal Can (NDT package)
−65°C to +150°C
Molded TO-92
−55°C to +150°C
Metal Can
+300°C
Plastic TO-92
+230°C
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits.
A military RETS specification is available upon request. At the time of printing, the LM140LA-5.0, -12, and -15 RETS specifications
complied with the Min and Max limits in this table. The LM140LAH-5.0, LM140LAH-12, and LM140LAH-15 may also be procured as
Standard Military Drawings.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
Thermal resistance of NDT-package is typically 26°C/W θjC, 250°C/W θjA still air, and 94°C/W θjA 400 lf/min of air. For the LP-package is
60°C/W θjC, 232°C/W θjA still air, and 88°C/W θjA at 400 lf/min of air. The maximum junction temperature shall not exceed 125°C on
electrical parameters.
Electrical Characteristics
Test conditions unless otherwise specified. TA = −55°C to +125°C (LM140LA), TA = 0°C to +70°C (LM340LA), IO = 40 mA, CIN
= 0.33 μF, CO = 0.01 μF.
Output Voltage Option
5.0V
12V
15V
Input Voltage (unless otherwise noted)
10V
19V
23V
Symbol
VO
Parameter
Output
Voltage
Conditions
Tj = 25°C
LM140LA
Output
Voltage Over LM340LA
Temp. (1)
IO = 1 − 100 mA
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
4.9
5
5.1
11.75
12
12.25
14.7
15
15.3
5.2
11.5
12.5
14.4
4.8
(7.2–20)
IO = 1 − 100 mA or
IO = 1 − 40 mA and
Units
4.85
(14.5–27)
5.15
11.65
(7–20)
15.6
(17.6–30)
12.35
(14.3–27)
14.55
V
15.45
(17.5–30)
VIN = ( )V
ΔVO
Tj = 25°C
IO = 40 mA
18
VIN = ( )V
Line
Regulation
IO = 100 mA
VIN = ( )V
Load
Regulation
Tj = 25°C
Quiescent
Current
ΔIQ
30
2
30
37
70
(17.3–30)
65
37
70
(17.5–30)
IO = 1 − 40 mA
5
20
10
40
12
50
IO = 1 − 100 mA
20
40
30
80
35
100
Tj = 25°C
3
Tj = 125°C
24
4.5
3
4.5
3.1
4.5
4.2
4.2
ΔLoad IO = 1 − 40
mA
0.1
0.1
0.1
ΔLine VIN = ( )V
0.5
0.5
0.5
(14.3–30)
mV
mV
1000
hrs
30
4.2
(7.5–25)
(1)
65
(14.5–30)
12
Tj = 25°C
Quiescent
Current
Change
18
30
(14.2–30)
(7.5–25)
Long Term
Stability
IO
30
(7–25)
mA
mA
(17.5–30)
The temperature coefficient of VOUT is typically within 0.01% VO/°C.
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Product Folder Links: LM140L LM340L
LM140L, LM340L
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SNVS758B – APRIL 1998 – REVISED MARCH 2013
Electrical Characteristics (continued)
Test conditions unless otherwise specified. TA = −55°C to +125°C (LM140LA), TA = 0°C to +70°C (LM340LA), IO = 40 mA, CIN
= 0.33 μF, CO = 0.01 μF.
Output Voltage Option
5.0V
12V
15V
Input Voltage (unless otherwise noted)
10V
19V
23V
Symbol
Parameter
Conditions
ΔVIN
ΔVout
Ripple
Rejection
f = 120 Hz, VIN = ( )V
Input Voltage
Required to
T = 25°C, IO = 40 mA
Maintain Line j
Regulation
(2)
Min
Output Noise Tj = 25°C (2), f = 10 Hz–10 kHz
Voltage
VN
Typ
Max
Min
40
55
62
Max
Min
Typ
80
47
(7.5–18)
7
Typ
Max
90
54
45
(14.5–25)
14.2
Units
52
(17.5–28.5)
17.3
μV
dB
V
It is recommended that a minimum load capacitor of 0.01 μF be used to limit the high frequency noise bandwidth.
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LM140L, LM340L
SNVS758B – APRIL 1998 – REVISED MARCH 2013
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Typical Performance Characteristics
4
Maximum Average Power
Dissipation
Maximum Average
Power Dissipation
(Metal Can Package)
Figure 3.
Figure 4.
Maximum Average Power
Dissipation (Plastic Package)
Peak Output Current
Figure 5.
Figure 6.
Dropout Voltage
Output Impedance
Figure 7.
Figure 8.
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Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM140L LM340L
LM140L, LM340L
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SNVS758B – APRIL 1998 – REVISED MARCH 2013
Typical Performance Characteristics (continued)
Ripple Rejection
Quiescent Current
Figure 9.
Figure 10.
Quiescent Current
Figure 11.
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Product Folder Links: LM140L LM340L
5
LM140L, LM340L
SNVS758B – APRIL 1998 – REVISED MARCH 2013
www.ti.com
TYPICAL APPLICATIONS
*Required if the regulator is located far from the power supply filter.
**It is recommended that a minimum load capacitor of 0.01 μF be used to limit the high frequency noise bandwidth.
Figure 12. Fixed Output Regulator
VOUT = 5V + (5V/R1 + IO) R2
5V/R1 = 3 IO load regulation (L,) [(R1 + R2)/R1] (L, of LM140LA-5.0)
Figure 13. Adjustable Output Regulator
6
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Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM140L LM340L
LM140L, LM340L
www.ti.com
SNVS758B – APRIL 1998 – REVISED MARCH 2013
Equivalent Circuit
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Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM140L LM340L
7
LM140L, LM340L
SNVS758B – APRIL 1998 – REVISED MARCH 2013
www.ti.com
REVISION HISTORY
Changes from Revision A (March 2013) to Revision B
•
8
Page
Changed layout of National Data Sheet to TI format ............................................................................................................ 7
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Product Folder Links: LM140L LM340L
PACKAGE OPTION ADDENDUM
www.ti.com
7-Oct-2021
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
LM140LAH-12
ACTIVE
TO
NDT
3
500
RoHS & Green
AU
Level-1-NA-UNLIM
-55 to 125
( LM140LAH-12, LM1
40LAH-12)
LM140LAH-12/NOPB
ACTIVE
TO
NDT
3
500
RoHS & Green
AU
Level-1-NA-UNLIM
-55 to 125
( LM140LAH-12, LM1
40LAH-12)
LM140LAH-15
ACTIVE
TO
NDT
3
500
RoHS & Green
AU
Level-1-NA-UNLIM
-55 to 125
( LM140LAH-15, LM1
40LAH-15)
LM140LAH-15/NOPB
ACTIVE
TO
NDT
3
500
RoHS & Green
AU
Level-1-NA-UNLIM
-55 to 125
( LM140LAH-15, LM1
40LAH-15)
LM140LAH-5.0
ACTIVE
TO
NDT
3
500
RoHS & Green
AU
Level-1-NA-UNLIM
-55 to 125
( LM140LAH-5.0, LM
140LAH-5.0)
LM140LAH-5.0/NOPB
ACTIVE
TO
NDT
3
500
RoHS & Green
AU
Level-1-NA-UNLIM
-55 to 125
( LM140LAH-5.0, LM
140LAH-5.0)
LM340LAZ-5.0/LFT4
ACTIVE
TO-92
LP
3
2000
RoHS & Green
Call TI
N / A for Pkg Type
LM340LAZ-5.0/NOPB
ACTIVE
TO-92
LP
3
1800
RoHS & Green
Call TI
N / A for Pkg Type
340LA
Z-5.0
0 to 70
340LA
Z-5.0
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of