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LM150, LM350-N, LM350A
www.ti.com
SNVS772B – MAY 1998 – REVISED MARCH 2013
LM150/LM350A/LM350 3-Amp Adjustable Regulators
Check for Samples:
LM150, LM350-N, LM350A
1
FEATURES
Adjustable Output Down to 1.2V
Guaranteed 3A output Current
Guaranteed Thermal Regulation
Output is Short Circuit Protected
Current Limit Constant with Temperature
P
+
Product Enhancement Tested
86 dB Ripple Rejection
Ensured 1% Output Voltage Tolerance
(LM350A)
Ensured Max. 0.01%/V Line Regulation
(LM350A)
Ensured Max. 0.3% Load Regulation (LM350A)
•
•
•
•
•
•
•
•
2
In addition to higher performance than fixed
regulators, the LM150 series offers full overload
protection available only in IC's. Included on the chip
are current limit, thermal overload protection and safe
area protection. All overload protection circuitry
remains fully functional even if the adjustment
terminal is accidentally disconnected.
Normally, no capacitors are needed unless the device
is situated more than 6 inches from the input filter
capacitors in which case an input bypass is needed.
An output capacitor can be added to improve
transient response, while bypassing the adjustment
pin will increase the regulator's ripple rejection.
Besides replacing fixed regulators or discrete
designs, the LM150 is useful in a wide variety of
other applications. Since the regulator is “floating”
and sees only the input-to-output differential voltage,
supplies of several hundred volts can be regulated as
long as the maximum input to output differential is not
exceeded, i.e., avoid short-circuiting the output.
By connecting a fixed resistor between the
adjustment pin and output, the LM150 can be used
as a precision current regulator. Supplies with
electronic shutdown can be achieved by clamping the
adjustment terminal to ground which programs the
output to 1.2V where most loads draw little current.
The part numbers in the LM150 series which have a
NDS suffix are packaged in a standard Steel TO-3
package, while those with a NDE suffix are packaged
in a TO-220 plastic package. The LM150 is rated for
−55°C ≤
T
J
≤
+150°C, while the LM350A is rated for
−40°C ≤
T
J
≤
+125°C, and the LM350 is rated for 0°C
≤
T
J
≤
+125°C.
•
•
APPLICATIONS
•
•
•
Adjustable Power supplies
Constant Current Regulators
Battery Chargers
DESCRIPTION
The LM150 series of adjustable 3-terminal positive
voltage regulators is capable of supplying in excess
of 3A over a 1.2V to 33V output range. They are
exceptionally easy to use and require only 2 external
resistors to set the output voltage. Further, both line
and load regulation are comparable to discrete
designs. Also, the LM150 is packaged in standard
transistor packages which are easily mounted and
handled.
Connection Diagram
Case is Output
Figure 1. (TO-3 STEEL) Metal Can Package
Bottom View
See Package Number NDS0002A
1
Figure 2. (TO-220) Plastic Package
Front View
See Package Number NDE0003B
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.
Copyright © 1998–2013, Texas Instruments Incorporated
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.
LM150, LM350-N, LM350A
SNVS772B – MAY 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)
Power Dissipation
Input-Output Voltage Differential
Storage Temperature
Lead Temperature
ESD Tolerance
LM150
Operating Temperature Range
LM350A
LM350
(1)
(2)
(3)
Metal Package (Soldering, 10 sec.)
Plastic Package (Soldering, 4 sec.)
Internally Limited
+35V
−65°C
to +150°C
300°C
260°C
TBD
−55°C ≤
T
J
≤
+150°C
−40°C ≤
T
J
≤
+125°C
0°C
≤
T
J
≤
+125°C
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications and test
conditions, see the Electrical Characteristics.
Refer to RETS150K drawing for military specifications of the LM150K.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
Electrical Characteristics
Specifications with standard type face are for T
J
= 25°C, and those with
boldface type
apply over
full Operating
Temperature Range.
Unless otherwise specified, V
IN
−
V
OUT
= 5V, and I
OUT
= 10 mA
(1)
Parameter
Reference Voltage
Line Regulation
Load Regulation
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current Change
Temperature Stability
Minimum Load Current
Current Limit
RMS Output Noise, % of V
OUT
Ripple Rejection Ratio
Long-Term Stability
Thermal Resistance, Junction to Case
Thermal Resistance, Junction to
Ambient (No Heat Sink)
(1)
10 mA
≤
I
OUT
≤
3A, 3V
≤
(V
IN
−
V
OUT
)
≤
35V
T
MIN
≤
T
J
≤
T
MAX
V
IN
−
V
OUT
= 35V
V
IN
−
V
OUT
≤
10V
V
IN
−
V
OUT
= 30V
10 Hz
≤
f
≤
10 kHz
V
OUT
= 10V, f = 120 Hz, C
ADJ
= 0
μF
V
OUT
= 10V, f = 120 Hz, C
ADJ
= 10
μF
T
J
= 125°C, 1000 hrs
NDS Package
NDS Package
66
3.0
0.3
Conditions
Min
3V
≤
(V
IN
−
V
OUT
)
≤
35V, 10 mA
≤
I
OUT
≤
3A, P
≤
30W
3V
≤
(V
IN
−
V
OUT
)
≤
35V
(2)
10 mA
≤
I
OUT
≤
3A
(2)
20 ms Pulse
1.20
LM150
Typ
1.25
0.005
0.02
0.1
0.3
0.002
50
0.2
1
3.5
4.5
1
0.001
65
86
0.3
1.2
35
1
1.5
5
Max
1.30
0.01
0.05
0.3
1
0.01
100
5
Units
V
%/V
%/V
%
%
%/W
μA
μA
%
mA
A
A
%
dB
dB
%
°C/W
°C/W
(2)
These specifications are applicable for power dissipations up to 30W for the TO-3 (NDS) package and 25W for the TO-220 (NDE)
package. Power dissipation is ensured at these values up to 15V input-output differential. Above 15V differential, power dissipation will
be limited by internal protection circuitry. All limits (i.e., the numbers in the Min. and Max. columns) are ensured to AOQL (Average
Outgoing Quality Level).
Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specifications for thermal regulation.
2
Submit Documentation Feedback
Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links:
LM150 LM350-N LM350A
LM150, LM350-N, LM350A
www.ti.com
SNVS772B – MAY 1998 – REVISED MARCH 2013
Electrical Characteristics
Specifications with standard type face are for T
J
= 25°C, and those with
boldface type
apply over
full Operating
Temperature Range.
Unless otherwise specified, V
IN
−
V
OUT
= 5V, and I
OUT
= 10 mA.
(1)
Parameter
Conditions
I
OUT
= 10 mA, T
J
= 25°C
3V
≤
(V
IN
−
V
OUT
)
≤
35V,
10 mA
≤
I
OUT
≤
3A, P
≤
30W
3V
≤
(V
IN
−
V
OUT
)
≤
35V
(2)
10 mA
≤
I
OUT
≤
3A
(2)
20 ms Pulse
10 mA
≤
I
OUT
≤
3A, 3V
≤
(V
IN
−
V
OUT
)
≤
35V
T
MIN
≤
T
J
≤
T
MAX
V
IN
−
V
OUT
= 35V
V
IN
−
V
OUT
≤
10V
V
IN
−
V
OUT
= 30V
10 Hz
≤
f
≤
10 kHz
V
OUT
= 10V, f = 120 Hz, C
ADJ
= 0
μF
V
OUT
= 10V, f = 120 Hz, C
ADJ
= 10
μF
T
J
= 125°C, 1000 hrs
66
3.0
0.3
LM350A
Min
1.238
1.225
Typ
1.250
1.250
0.005
0.02
0.1
0.3
0.002
50
0.2
1
3.5
4.5
1
0.001
65
86
0.25
3
50
1
4
66
10
3.0
0.25
Max
1.262
1.270
0.01
0.05
0.3
1
0.01
100
5
1.20
1.25
0.005
0.02
0.1
0.3
0.002
50
0.2
1
3.5
4.5
1
0.001
65
86
0.25
1.2
3
35
50
1
1.5
4
10
1.30
0.03
0.07
0.5
1.5
0.03
100
5
Min
LM350
Typ
Max
V
V
%/V
%/V
%
%
%/W
μA
μA
%
mA
A
A
%
dB
dB
%
°C/W
°C/W
°C/W
°C/W
Units
Reference Voltage
Line Regulation
Load Regulation
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current Change
Temperature Stability
Minimum Load Current
Current Limit
RMS Output Noise, % of V
OUT
Ripple Rejection Ratio
Long-Term Stability
Thermal Resistance, Junction to NDS Package
Case
NDE Package
Thermal Resistance, Junction to NDS Package
Ambient (No Heat Sink)
NDE Package
(1)
(2)
These specifications are applicable for power dissipations up to 30W for the TO-3 (NDS) package and 25W for the TO-220 (NDE)
package. Power dissipation is ensured at these values up to 15V input-output differential. Above 15V differential, power dissipation will
be limited by internal protection circuitry. All limits (i.e., the numbers in the Min. and Max. columns) are ensured to AOQL (Average
Outgoing Quality Level).
Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specifications for thermal regulation.
Copyright © 1998–2013, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links:
LM150 LM350-N LM350A
LM150, LM350-N, LM350A
SNVS772B – MAY 1998 – REVISED MARCH 2013
www.ti.com
Typical Performance Characteristics
Load Regulation
Current Limit
Figure 3.
Adjustment Current
Figure 4.
Dropout Voltage
Figure 5.
Temperature Stability
Figure 6.
Minimum Operating Current
Figure 7.
Figure 8.
4
Submit Documentation Feedback
Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links:
LM150 LM350-N LM350A
LM150, LM350-N, LM350A
www.ti.com
SNVS772B – MAY 1998 – REVISED MARCH 2013
Typical Performance Characteristics (continued)
Ripple Rejection
Ripple Rejection
Figure 9.
Ripple Rejection
Figure 10.
Output Impedance
Figure 11.
Line Transient Response
Figure 12.
Load Transient Response
Figure 13.
Figure 14.
Copyright © 1998–2013, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Links:
LM150 LM350-N LM350A

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