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LM340LAH-5.0

Part # LM340LAH-5.0
Description Standard Regulator Pos 5V 0.1A 3-Pin TO-39 Box
Category TRANSISTOR
Availability In Stock
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National Semiconductor Corp
Date Code: 8842
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

TL/H/7782
LM140L/LM340L Series 3-Terminal Positive Regulators
February 1995
LM140L/LM340L Series 3-Terminal Positive Regulators
General 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 out-
put voltage tolerance (specified over the full military temper-
ature range), higher ripple rejection, better regulation and
lower quiescent current. The LM140LA regulators have
g
2% V
OUT
specification, 0.04%/V line regulation, and
0.01%/mA load regulation. When used as a zener diode/re-
sistor combination replacement, the LM140LA usually re-
sults 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 regu-
lation. 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-39 (H) and the LM340LA are also avail-
able in the plastic TO-92 (Z). 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 over-
heating.
For applications requiring other voltages, see LM117L Data
Sheet.
Features
Y
Line regulation of 0.04%/V
Y
Load regulation of 0.01%/mA
Y
Output voltage tolerances of
g
2% at T
j
e
25
§
C and
g
4% over the temperature range (LM140LA)
g
3% over the temperature range (LM340LA)
Y
Output current of 100 mA
Y
Internal thermal overload protection
Y
Output transistor safe area protection
Y
Internal short circuit current limit
Y
Available in metal TO-39 low profile package
(LM140LA/LM340LA) and plastic TO-92 (LM340LA)
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
TO-39 Metal Can Package (H)
TL/H/7782–2
Bottom View
Order Number LM140LAH-5.0, LM140LAH-5.0/883, LM140LAH-12,
LM140LAH-12/883, LM140LAH-15, LM140LAH-15/883, LM340LAH-5.0, LM340LAH-12 or LM340LAH-15
See NS Package Number H03A
TO-92 Plastic Package (Z)
TL/H/7782–3
Bottom View
Order Number LM340LAZ-5.0, LM340LAZ-12 or LM340LAZ-15
See NS Package Number Z03A
C
1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
(Note 4)
Input Voltage 35V
Internal Power Dissipation (Note 1) Internally Limited
Operating Temperature Range
LM140LA
b
55
§
Cto
a
125
§
C
LM340LA 0
§
Cto
a
70
§
C
Maximum Junction Temperature
a
150
§
C
Storage Temperature Range
Metal Can (H package)
b
65
§
Cto
a
150
§
C
Molded TO-92
b
55
§
Cto
a
150
§
C
Lead Temperature (Soldering, 10 sec.)
Metal Can
a
300
§
C
Plastic TO-92
a
230
§
C
Electrical Characteristics
Test conditions unless otherwise specified. T
A
eb
55
§
Cto
a
125
§
C (LM140LA), T
A
e
0
§
Cto
a
70
§
C (LM340LA), I
O
e
40 mA,
C
IN
e
0.33 mF, C
O
e
0.01 mF.
Output Voltage Option 5.0V 12V 15V
Input Voltage (unless otherwise noted) 10V 19V 23V Units
Symbol Parameter Conditions Min Typ Max Min Typ Max Min Typ Max
V
O
Output Voltage T
j
e
25
§
C 4.9 5 5.1 11.75 12 12.25 14.7 15 15.3
Output Voltage LM140LA I
O
e
1
b
100 mA 4.8 5.2 11.5 12.5 14.4 15.6
Over Temp.
(7.2– 20) (14.5– 27) (17.6– 30)
V
(Note 3)
LM340LA I
O
e
1
b
100 mA or 4.85 5.15 11.65 12.35 14.55 15.45
I
O
e
1
b
40 mA and
(7– 20) (14.3–27) (17.5 –30)
V
IN
e
()V
DV
O
Line Regulation T
j
e
25
§
CI
O
e
40 mA 18 30 30 65 37 70
V
IN
e
()V
(7– 25) (14.2 –30) (17.3 –30)
I
O
e
100 mA 18 30 30 65 37 70
mV
V
IN
e
()V
(7.5– 25) (14.5– 30) (17.5– 30)
Load Regulation T
j
e
25
§
CI
O
e
1
b
40 mA 5 20 10 40 12 50
I
O
e
1
b
100 mA
20 40 30 80 35 100
Long Term
12 24 30
mV
Stability 1000 hrs
I
O
Quiescent T
j
e
25
§
C 3 4.5 3 4.5 3.1 4.5
mA
Current T
j
e
125
§
C
4.2 4.2 4.2
DI
Q
Quiescent T
j
e
25
§
C DLoad I
O
e
1
b
40 mA 0.1 0.1 0.1
Current Change
DLine 0.5 0.5 0.5 mA
V
IN
e
()V
(7.5– 25) (14.3– 30) (17.5– 30)
V
N
Output Noise T
j
e
25
§
C (Note 2)
40 80 90 mV
Voltage f
e
10 Hz– 10 kHz
DV
IN
DV
OUT
Ripple Rejection f
e
120 Hz, V
IN
e
()V 5562 4754 4552
dB
(7.5– 18) (14.5– 25) (17.5– 28.5)
Input Voltage
Required to
T
j
e
25
§
C, I
O
e
40 mA 7 14.2 17.3 V
Maintain Line
Regulation
Note 1: Thermal resistance of H-package is typically 26
§
C/W i
jC
, 250
§
C/W i
jA
still air, and 94
§
C/W i
jA
400 lf/min of air. For the Z-package is 60
§
C/W i
jC
, 232
§
C/
W i
jA
still air, and 88
§
C/W i
jA
at 400 lf/min of air. The maximum junction temperature shall not exceed 125
§
C on electrical parameters.
Note 2: It is recommended that a minimum load capacitor of 0.01 mF be used to limit the high frequency noise bandwidth.
Note 3: The temperature coefficient of V
OUT
is typically within 0.01% V
O
/
§
C.
Note 4: 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.
2
Typical Performance Characteristics
Dissipation
Maximum Average Power
(Metal Can Package)
Power Dissipation
Maximum Average
Dissipation (Plastic Package)
Maximum Average Power
Peak Output Current Dropout Voltage Output Impedance
Ripple Rejection Quiescent Current Quiescent Current
TL/H/7782–4
Typical Applications
Fixed Output Regulator
TL/H/7782–5
*Required if the regulator is located far from the power supply filter.
**See note 3 in the electrical characteristics table.
Adjustable Output Regulator
TL/H/7782–6
V
OUT
e
5V
a
(5V/R1
a
I
O
)R2
5V/R1
e
3I
O
load regulation (L,)
[
(R1
a
R2)/R1
]
(L, of LM140LA-5.0)
3
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