NSC LM320MP-15 Series 3-terminal negative regulator Datasheet

LM120/LM320
Series 3-Terminal Negative Regulators
General Description
The LM120 series are three-terminal negative regulators
with a fixed output voltage of b5V, b12V, and b15V, and
up to 1.5A load current capability. Where other voltages are
required, the LM137 and LM137HV series provide an output
voltage range of b1.2V to b47V.
The LM120 need only one external componentÐa compensation capacitor at the output, making them easy to apply.
Worst case guarantees on output voltage deviation due to
any combination of line, load or temperature variation assure satisfactory system operation.
Exceptional effort has been made to make the LM120 Series immune to overload conditions. The regulators have
current limiting which is independent of temperature, combined with thermal overload protection. Internal current limiting protects against momentary faults while thermal shutdown prevents junction temperatures from exceeding safe
limits during prolonged overloads.
Although primarily intended for fixed output voltage applications, the LM120 Series may be programmed for higher output voltages with a simple resistive divider. The low quiescent drain current of the devices allows this technique to be
used with good regulation.
Features
Y
Y
Y
Y
Y
Y
Y
Preset output voltage error less than g 3%
Preset current limit
Internal thermal shutdown
Operates with input-output voltage differential down to
1V
Excellent ripple rejection
Low temperature drift
Easily adjustable to higher output voltage
LM120 Series Packages and Power Capability
Device
LM120/LM320
Package
Rated
Power
Dissipation
Design
Load
Current
TO-3 (K)
20W
1.5A
TO-39 (H)
2W
0.5A
LM320
TO-220 (T)
15W
1.5A
LM320M
TO-202 (P)
7.5W
0.5A
Typical Applications
Dual Trimmed Supply
Fixed Regulator
TL/H/7767 – 2
*Required if regulator is separated from filter capacitor by more than 3× . For
value given, capacitor must be solid tantalum. 25 mF aluminum electrolytic
may be substituted.
² Required for stability. For value given, capacitor must be solid tantalum. 25
mF aluminum electrolytic may substituted. Values given may be increased
without limit.
For output capacitance in excess of 100 mF, a high current diode from
input to output (1N4001, etc.) will protect the regulator from momentary
input shorts.
TL/H/7767–3
C1995 National Semiconductor Corporation
TL/H/7767
RRD-B30M115/Printed in U. S. A.
LM120/LM320 Series 3-Terminal Negative Regulators
November 1994
2
Line Regulation
TJ e 25§ C, VIN e 10V,
5 mA s ILOAD s ID
b 7.5V s VIN s VMAX,
5 mA s ILOAD s ID, P s PD
VMIN s VIN s VMAX
TJ e 25§ C
VMIN s VIN s VMAX
5 mA s ILOAD s ID
TA e 25§ C, CL e 1 mF, IL e 5 mA,
VIN e 10V, 10 Hz s f s 100 kHz
Load Regulation,
(Note 2)
Output Voltage,
(Note 1)
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
5
150
0.1
0.1
1
50
64
10
b5
Typ
54
b 25
b 5.2
Min
3
35
50
0.4
0.4
2
b 4.80 b 5.25
75
b7
25
b 4.9
Max
5
150
0.1
0.1
1
60
64
10
b5
Typ
1.5A
20W
54
b 25
b 5.1
Min
5
150
0.05
0.04
1
54
bb 25
b 5.2
Min
Note 4
Note 4
50
0.4
0.4
2
5
150
0.05
0.04
1
30
64
10
b5
Typ
0.5A
2W
54
b 25
b 5.2
Min
Note 4
Note 4
50
0.4
0.4
2
4
50
10
150
0.1
0.1
1
50
64
10
b5
Typ
1.5A
15W
0.4
0.4
b 4.75
100
b 7.5
40
b 4.8
Max
LM320T-5.0
(TO-220)
Power Plastic Package
b 4.75 b 5.25
50
b7
40
b 4.8
Max
LM320H-5.0
(TO-39)
b 4.80 b 5.25
50
b7
25
b 4.9
Max
300§ C
260§ C
§ C/W
§ C/W
mV
mV
mA
mA
mA
V
mV
dB
V
mV
V
Units
Note 5: Refer to RETS120-5H drawing for LM120H-5.0 or RETS120-5K drawing for LM120-5K military specifications.
Note 4: Thermal resistance of typically 85§ C/W (in 400 linear feet air flow), 224§ C/W (in static air) junction to ambient, of typically 21§ C/W junction to case.
Note 3: For b 5V 3 amp regulators, see LM145 data sheet.
Note 2: Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. To ensure constant junction temperature, low duty cycle, pulse testing is
used. The LM120/LM320 series does have low thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical specifications apply only up to PD.
3
35
50
0.4
0.4
2
30
64
10
b5
Typ
0.5A
2W
LM120H-5.0
(TO-39)
b 4.75 b 5.20
100
b7
40
b 4.8
Max
25V
See Note 1
b 65§ C to a 150§ C
Metal Can Package
LM320K-5.0
(TO-3)
Note 1: This specification applies over b 55§ C s TJ s a 150§ C for the LM120 and 0§ C s TJ s a 125§ C for the LM320.
Thermal Resistance
Junction to Case
Junction to Ambient
Long Term Stability
54
f e 120 Hz
Ripple Rejection
b 5.20
b 25
b 5.1
Min
Input Voltage
VMIN s VIN s VMAX
TJ e 25§ C, ILOAD e 5 mA,
Output Voltage
Conditions (Note 1)
TJ e 25§ C, VIN e 10V,
ILOAD e 5 mA
1.5A
20W
Design Output Current (ID)
Device Dissipation (PD)
Parameter
LM120K-5.0
(TO-3)
Lead Temperature (Soldering, 10 sec.)
Plastic
Storage Temperature Range
Input-Output Voltage Differential
Junction Temperatures
Order Numbers
Electrical Characteristics
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
(Note 5)
Power Dissipation
Internally Limited
b 25V
Input Voltage
Absolute Maximum Ratings
b 5 Volt Regulators (Note 3)
3
Line Regulation
TJ e 25§ C, VIN e 17V,
5 mA s ILOAD s ID
14.5V s VIN s VMAX,
5 mA s ILOAD s ID, P s PD
VMIN s VIN s VMAX
Load Regulation,
(Note 2)
Output Voltage,
(Note 1)
TA e 25§ C, CL e 1 mF, IL e 5 mA,
VIN e 17V, 10 Hz s f s 100 kHz
Output Noise Voltage
Typ
Max
Min
Typ
1A
20W
Max
Min
Typ
0.2A
2W
Max
LM120H-12
(TO-39)
Min
Typ
0.2A
2W
Max
LM320H-12
(TO-39)
Min
b 12.5
56
b 32
12
400
0.1
0.1
2
30
80
4
10
56
b 32
3
35
120
0.4
0.4
4
b 11.5 b 12.6
80
b 14
12
400
0.1
0.1
2
30
80
4
20
56
b 32
12
400
0.05
0.03
2
10
80
4
10
56
b 32
Note 3
Note 3
120
0.4
0.4
4
b 11.5 b 12.6
25
b 14
12
400
0.05
0.03
2
10
80
4
20
56
b 32
Note 3
Note 3
120
0.4
0.4
4
b 11.4 b 12.6
40
b 14
4
50
24
400
0.1
0.1
2
30
80
4
0.4
0.4
4
b 11.4
80
b 14.5
20
b 11.6
Max
§ C/W
§ C/W
mV
mV
mA
mA
mA
V
mV
dB
V
mV
V
Units
Note 4: Refer to RETS120H-12 drawing for LM120H-12 or RETS120-12K drawing for LM120K-12 military specifications.
Note 3: Thermal resistance of typically 85§ C/W (in 400 linear feet/min air flow), 224§ C/W (in static air) junction to ambient, of typically 21§ C/W junction to case.
Note 2: Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. To ensure constant junction temperature, low duty cycle, pulse testing is
used. The LM120/LM320 series does have low thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical specifications apply only up to PD.
3
35
120
0.4
0.4
4
b 11.4 b 12.5
80
b 14
b 12
Typ
1A
15W
LM320T-12
(TO-220)
Power Plastic Package
b 12.3 b 12 b 11.7 b 12.4 b 12 b 11.6 b 12.3 b 12 b 11.7 b 12.4 b 12 b 11.6 b 12.4
Min
30V
See Note 1
b 65§ C to a 150§ C
300§ C
Metal Can Package
LM320K-12
(TO-3)
Note 1: This specification applies over b 55§ C s TJ s a 150§ C for the LM120 and 0§ C s TJ s a 125§ C for the LM320.
Thermal Resistance
Junction to Case
Junction to Ambient
Long Term Stability
TJ e 25§ C
VMIN s VIN s VMAX
5 mA s ILOAD s ID
Quiescent Current
Change
Quiescent Current
f e 120 Hz
Ripple Rejection
Input Voltage
VMIN s VIN s VMAX
TJ e 25§ C, ILOAD e 5 mA,
Output Voltage
Conditions (Note 1)
TJ e 25§ C, VIN e 17V,
ILOAD e 5 mA
1A
20W
Design Output Current (ID)
Device Dissipation (PD)
Parameter
LM120K-12
(TO-3)
Input-Output Voltage Differential
Junction Temperatures
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
Order Numbers
Electrical Characteristics
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
(Note 4)
Power Dissipation
Internally Limited
b 35V
Input Voltage
Absolute Maximum Ratings
b 12 Volt Regulators
4
TJ e 25§ C, ILOAD e 5 mA,
VMIN s VIN s VMAX
Line Regulation
TJ e 25§ C, VIN e 20V,
5 mA s ILOAD s ID
17.5V s VIN s VMAX,
5 mA s ILOAD s ID, P s PD
VMIN s VIN s VMAX
TJ e 25§ C
VMIN s VIN s VMAX
5 mA s ILOAD s ID
TA e 25§ C, CL e 1 mF, IL e 5 mA,
VIN e 20V, 10 Hz s f s 100 kHz
Load Regulation,
(Note 2)
Output Voltage,
(Note 1)
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
Typ
Max
Min
Typ
Max
Min
Typ
0.2A
2W
Max
LM120H-15
(TO-39)
300§ C
Min
Typ
0.2A
2W
Max
LM320H-15
(TO-39)
Min
b 15.5
56
b 35
15
400
0.1
0.1
2
30
80
5
56
b 35
3
35
150
0.4
0.4
4
b 14.5 b 15.6
80
b 17
10
15
400
0.1
0.1
2
30
80
5
56
b 35
15
400
0.05
0.03
2
10
80
5
56
b 35
Note 3
Note 3
150
0.4
0.4
4
b 14.5 b 15.6
25
b 17
10
15
400
0.05
0.03
2
10
80
5
56
b 35
Note 3
Note 3
150
0.4
0.4
4
b 14.4 b 15.7
40
b 17
20
4
50
30
400
0.1
0.1
2
30
80
5
Max
0.4
0.4
4
b 14.3
80
b 17.5
20
b 14.5
§ C/W
§ C/W
mV
mV
mA
mA
mA
V
mV
dB
V
mV
V
Units
Note 4: Refer to RETS120-15H drawing for LM120H-15 or RETS120-15K drawing for LM120K-15 military specifications.
Note 3: Thermal resistance of typically 85§ C/W (in 400 linear feet/min air flow), 224§ C/W (in static air) junction to ambient, of typically 21§ C/W junction to case.
Note 2: Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account separately. To ensure constant junction temperature, low duty cycle, pulse testing is
used. The LM120/LM320 series does have low thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical specifications apply only up to PD.
3
35
150
0.4
0.4
4
b 14.4 b 15.5
80
b 17
20
b 15
Typ
1A
15W
LM320T-15
(TO-220)
Power Plastic Package
b 15.3 b 15 b 14.7 b 15.4 b 15 b 14.6 b 15.3 b 15 b 14.7 b 15.4 b 15 b 14.6 b 15.5
Min
1A
20W
30V
See Note 1
b 65§ C to a 150§ C
Metal Can Package
LM320K-15
(TO-3)
Note 1: This specification applies over b 55§ C s TJ s a 150§ C for the LM120 and 0§ C s TJ s a 125§ C for the LM320.
Thermal Resistance
Junction to Case
Junction to Ambient
Long Term Stability
f e 120 Hz
Ripple Rejection
Input Voltage
Output Voltage
Conditions (Note 1)
TJ e 25§ C, VIN e 20V,
ILOAD e 5 mA
1A
20W
Design Output Current (ID)
Device Dissipation (PD)
Parameter
LM120K-15
(TO-3)
Lead Temperature (Soldering, 10 sec.)
Storage Temperature Range
Input-Output Voltage Differential
Junction Temperatures
Order Numbers
Electrical Characteristics
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
(Note 4)
Power Dissipation
Internally Limited
Input Voltage
b 40V
LM120/LM320
b 35V
LM320T
Absolute Maximum Ratings
b 15 Volt Regulators
Typical Performance Characteristics
Output Voltage vs
Temperature
Ripple Rejection
(All Types)
Output Impedance TO-3
and TO-220 Packages
Output Impedance TO-5
and TO-202 Packages
Minimum Input-Output
Differential TO-3 and
TO-220 Packages
Minimum Input-Output
Differential TO-5 and
TO-202 Packages
Quiescent Current vs
Input Voltage
Quiescent Current vs
Load Current
Maximum Average Power
Dissipation (TO-3)
TL/H/7767 – 4
*These curves for LM120.
Derate 25§ C further for LM320.
5
Typical Performance Characteristics
Maximum Average Power
Dissipation (TO-5)
(Continued)
Maximum Average Power
Dissipation (TO-202)
Maximum Average Power
Dissipation (TO-220)
Short Circuit Current
TL/H/7767 – 5
Typical Applications (Continued)
High Stability 1 Amp Regulator
TL/H/7767 – 6
Lead and line regulation Ð 0.01% temperature stability Ð 0.2%
² Determines Zener current.
² ² Solid tantalum.
An LM120-12 or LM120-15 may be used to permit higher input voltages, but the regulated output voltage must be at least b 15V when using the LM120-12 and
b 18V for the LM120-15.
**Select resistors to set output voltage. 2 ppm/§ C tracking suggested.
6
Typical Applications (Continued)
Wide Range Tracking Regulator
Current Source
*IOUT e 1 mA a
5.0V
R1
TL/H/7767 – 8
TL/H/7767 – 7
g 15V, 1 Amp Tracking Regulators
*Resistor tolerance of R1 and R2 determine matching of ( a ) and ( b )
inputs.
**Necessary only if raw supply capacitors are more than 3× from regulators
An LM3086N array may substitute for Q1, D1 and D2 for better stability and
tracking. In the array diode transistors Q5 and Q4 (in parallel) make up D2;
similarly, Q1 and Q2 become D1 and Q3 replaces the 2N2222.
Variable Output
TL/H/7767 – 9
Performance (Typical)
*Optional. Improves transient response and ripple rejection.
VOUT e VSET
Load Regulation at DIL e 1A
Output Ripple, CIN e 3000 mF, IL e 1A
Temperature Stability
Output Noise 10 Hz s f s 10 kHz
R1 a R2
R2
SELECT R2 AS FOLLOWS:
LM120-5
LM120-12
LM120-15
10 mV
100 mVrms
a 50 mV
150 mVrms
TL/H/7767 – 12
1 mV
100 mVrms
a 50 mV
150 mVrms
*Resistor tolerance of R4 and R5 determine matching of ( a ) and
( b ) outputs.
b 300X
b 750X
b 1k
**Necessary only if raw supply filter capacitors are more than 2×
from regulators.
Light Controllers Using Silicon Photo Cells
TL/H/7767 – 11
*Lamp brightness increases until iI e iQ (1 mA) a 5V/R1.
TL/H/7767 – 10
² Necessary only if raw supply filter capacitor is more than 2× from LM320.
*Lamp brightness increases until iI e 5V/R1 (iI can be set as low as 1 mA).
² Necessary only of raw supply filter capacitor is more than 2× from
LM320MP.
7
Connection Diagrams
TL/H/7767–13
TL/H/7767 – 14
Bottom View
Bottom View
Metal Can Package TO-39 (H)
Order Number LM120H-5.0, LM120H-12, LM120H-15,
LM120H-5.0/883, LM120H-12/883, LM120H-15/883,
LM320H-5.0, LM320H-12 or LM320H-15
See NS Package Number H03A
Steel Metal Can Package TO-3 (K)
Order Number LM120K-5.0/883, LM120K-12/883,
LM120K-15/883, LM320K-5.0, LM320K-12 or LM320K-15
See NS Package Number K02A
TL/H/7767 – 17
Front View
Power Package TO-220 (T)
Order Number LM320T-5.0, LM320T-12 or LM320T-15
See NS Package Number T03B
Schematic Diagrams
b 5V
TL/H/7767 – 18
8
Schematic Diagrams (Continued)
b 12V and b 15V
TL/H/7767 – 19
Physical Dimensions inches (millimeters)
Metal Can Package (TO-39) (H)
Order Number LM120H-5.0, LM120H-12, LM120H-15, LM320H-5.0, LM320H-12 or LM320H-15
NS Package Number H03A
9
Physical Dimensions inches (millimeters) (Continued)
Steel Metal Can Package TO-3 (K)
Order Number LM120K-5.0, LM120K-12, LM120K-15, LM320K-5.0, LM320K-12 or LM320K-15
NS Package Number K02A
Aluminum Metal Can Package TO-3 (KC)
Order Number LM320KC-5.0, LM320KC-12 or LM320KC-15
NS Package Number KC02A
10
Physical Dimensions inches (millimeters) (Continued)
Power Package TO-202 (P)
Order Number LM320MP-5.0, LM320MP-12 or LM320MP-15
NS Package Number P03A
11
LM120/LM320 Series 3-Terminal Negative Regulators
Physical Dimensions inches (millimeters) (Continued)
Power Package TO-220 (T)
Order Number LM320T-5.0, LM320T-12 or LM320T-15
NS Package Number T03B
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