LM320T-15/NOPB [TI]
Series 3-Terminal Negative Regulators;
| 型号： | LM320T-15/NOPB |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Series 3-Terminal Negative Regulators 局域网 输出元件 调节器 |
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LM120, LM320-N
www.ti.com
SNVS756C –APRIL 1998–REVISED APRIL 2013
LM120/LM320-N Series 3-Terminal Negative Regulators
Check for Samples: LM120, LM320-N
Exceptional effort has been made to make the LM120
1
FEATURES
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.
2
•
•
•
•
Preset Output Voltage Error Less than ±3%
Preset Current Limit
Internal Thermal Shutdown
Operates with Input-Output Voltage Differential
down to 1V
•
•
•
Excellent Ripple Rejection
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.
Low Temperature Drift
Easily Adjustable to Higher Output Voltage
DESCRIPTION
The LM120 series are three-terminal negative
regulators with a fixed output voltage of −5V, −12V,
and −15V, and up to 1.5A load current capability.
Where other voltages are required, the LM137 and
LM137HV series provide an output voltage range of
−1.2V to −47V.
Table 1. LM120 Series Packages and Power
Capability
Device
Package
Rated Power
Dissipation
Design
Load
Current
The LM120 need only one external component—a
compensation capacitor at the output, making them
easy to apply. Worst case specifications on output
voltage deviation due to any combination of line, load
or temperature variation assure satisfactory system
operation.
LM120/LM320- TO-3 (NDS)
N
20W
1.5A
TO (NDT)
2W
0.5A
1.5A
LM320-N
TO-220 (NDE)
15W
Typical Applications
*Required if regulator is separated from
filter capacitor by more than 3 inches. For
value given, capacitor must be solid
tantalum. 25 μF aluminum electrolytic may
be substituted.
†Required for stability. For value given,
capacitor must be solid tantalum. 25 μF
aluminum electrolytic may be substituted.
Values given may be increased without
limit.
For output capacitance in excess of 100
μF, a high current diode from input to
output (1N4001, etc.) will protect the
regulator from momentary input shorts.
Figure 1. Dual Trimmed Supply
Figure 2. Fixed Regulator
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.
All trademarks are the property of their respective owners.
2
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
LM120, LM320-N
SNVS756C –APRIL 1998–REVISED APRIL 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−5 VOLT REGULATORS(1)(2)(3)
Power Dissipation
Internally Limited
Input Voltage
−25V
Input-Output Voltage Differential
Junction Temperatures
Storage Temperature Range
Lead Temperature
(Soldering, 10 sec.)
Plastic
25V
(4)
−65°C to +150°C
300°C
260°C
(1) Refer to RETS120-5H drawing for LM120H-5.0 or RETS120-5K drawing for LM120-5K military specifications.
(2) For −5V 3 amp regulators, see LM145 data sheet.
(3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(4) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
LM120K-5.0 AND LM320K-5.0 ELECTRICAL CHARACTERISTICS(1)
Metal Can Package
Order Numbers
LM120K-5.0
(TO-3)
LM320K-5.0
(TO-3)
Units
Design Output Current (ID)
Device Dissipation (PD)
1.5A
20W
(2)
Parameter
Output Voltage
Conditions
Min
Typ
Max
Min
Typ
Max
TJ = 25°C, VIN =10V,
ILOAD = 5 mA
−5.1
−5
−4.9
−5.2
−5
−4.8
V
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
10
25
10
40
−7
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−25
−7
−25
V
Ripple Rejection
f = 120 Hz
54
64
50
54
64
60
dB
mV
Load Regulation,
(3)
TJ = 25°C, VIN = 10V,
5 mA ≤ ILOAD ≤ ID
75
100
Output Voltage,
(2)
−7.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
,
−5.20
−4.80 −5.25
−4.75
V
Quiescent Current
Quiescent Current
Change
V
1
2
1
2
mA
VMIN ≤ VIN ≤ VMAX
0.1
0.1
150
0.4
0.4
0.1
0.1
150
0.4
0.4
mA
mA
μV
5 mA ≤ ILOAD ≤ ID
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 10V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability
Thermal Resistance
Junction to Case
5
50
5
50
mV
3
3
°C/W
°C/W
Junction to Ambient
35
35
(1) For −5V 3 amp regulators, see LM145 data sheet.
(2) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(3) 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-N 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.
2
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Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM120 LM320-N
LM120, LM320-N
www.ti.com
SNVS756C –APRIL 1998–REVISED APRIL 2013
LM120H-5.0 ELECTRICAL CHARACTERISTICS(1)
Metal Can Package
LM120H-5.0
Order Numbers
(TO)
Units
0.5A
2W
Design Output Current (ID)
Device Dissipation (PD)
(2)
Parameter
Output Voltage
Conditions
Min
Typ
Max
TJ = 25°C, VIN =10V,
−5.1
−5
−4.9
V
ILOAD = 5 mA
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
10
25
−7
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−25
V
Ripple Rejection
f = 120 Hz
54
64
30
dB
mV
Load Regulation,
(3)
TJ = 25°C, VIN = 10V,
5 mA ≤ ILOAD ≤ ID
50
Output Voltage,
(4)
−7.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
,
−5.20
−4.80
2
V
Quiescent Current
Quiescent Current
Change
V
1
mA
VMIN ≤ VIN ≤ VMAX
0.05
0.04
150
0.4
0.4
mA
mA
μV
5 mA ≤ ILOAD ≤ ID
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 10V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability
Thermal Resistance
Junction to Case
5
mV
(5)
(5)
°C/W
°C/W
Junction to Ambient
(1) For −5V 3 amp regulators, see LM145 data sheet.
(2) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(3) 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-N 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.
(4) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(5) 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.
ABSOLUTE MAXIMUM RATINGS−12 VOLT REGULATORS(1)(2)
Power Dissipation
Internally Limited
Input Voltage
−35V
Input-Output Voltage Differential
Junction Temperatures
Storage Temperature Range
Lead Temperature
30V
(3)
−65°C to +150°C
(Soldering, 10 sec.)
300°C
(1) Refer to RETS120H-12 drawing for LM120H-12 or RETS120-12K drawing for LM120K-12 military specifications.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
Copyright © 1998–2013, Texas Instruments Incorporated
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3
Product Folder Links: LM120 LM320-N
LM120, LM320-N
SNVS756C –APRIL 1998–REVISED APRIL 2013
www.ti.com
LM120K-12 ELECTRICAL CHARACTERISTICS
Metal Can Package
Order Numbers
Units
LM120K-12
(TO-3)
Design Output Current (ID)
Device Dissipation (PD)
1A
20W
(1)
Parameter
Output Voltage
Conditions
Min
Typ
Max
TJ = 25°C, VIN = 17V,
ILOAD = 5 mA
−12.3
−12
−11.7
V
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
4
10
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−32
−14
80
V
Ripple Rejection
f = 120 Hz
56
80
30
dB
mV
Load Regulation,
(2)
TJ = 25°C, VIN = 17V,
5 mA ≤ ILOAD ≤ ID
Output Voltage,
(3)
14.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
MIN ≤ VIN ≤ VMAX
,
−12.5
−11.5
4
V
Quiescent Current
Quiescent Current
Change
V
2
mA
V
0.1
0.1
0.4
0.4
mA
mA
μV
5 mA ≤ ILOAD ≤ ID
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 17V, 10 Hz ≤ f ≤ 100 kHz
400
Long Term Stability
Thermal Resistance
Junction to Case
12
120
mV
3
°C/W
°C/W
Junction to Ambient
35
(1) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(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-N 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) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
LM120H-12 ELECTRICAL CHARACTERISTICS
Metal Can Package
Order Numbers
LM120H-12
(TO)
Units
Design Output Current (ID)
Device Dissipation (PD)
0.2A
2W
(1)
Parameter
Output Voltage
Conditions
Min
Typ
Max
TJ = 25°C, VIN = 17V,
ILOAD = 5 mA
−12.3
−12
−11.7
V
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
4
10
−14
25
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−32
V
Ripple Rejection
Load Regulation,
f = 120 Hz
56
80
10
dB
mV
TJ = 25°C, VIN = 17V,
(1) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
Submit Documentation Feedback
4
Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM120 LM320-N
LM120, LM320-N
www.ti.com
SNVS756C –APRIL 1998–REVISED APRIL 2013
LM120H-12 ELECTRICAL CHARACTERISTICS (continued)
Metal Can Package
Order Numbers
LM120H-12
(TO)
Units
Design Output Current (ID)
0.2A
Device Dissipation (PD)
2W
(1)
Parameter
Conditions
Min
Typ
Max
−11.5
4
(2)
5 mA ≤ ILOAD ≤ ID
14.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
MIN ≤ VIN ≤ VMAX
Output Voltage,
,
−12.5
V
(1)
Quiescent Current
Quiescent Current
Change
V
2
mA
V
0.05
0.03
400
0.4
0.4
mA
mA
μV
5 mA ≤ ILOAD ≤ ID
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 17V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability
Thermal Resistance
Junction to Case
12
120
mV
(3)
(3)
°C/W
°C/W
Junction to Ambient
(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-N 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) 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.
LM320T-12 ELECTRICAL CHARACTERISTICS
Power Plastic Package
Order Numbers
LM320T-12
(TO-220)
Units
Design Output Current (ID)
Device Dissipation (PD)
1A
15W
Typ
−12
(1)
Parameter
Output Voltage
Conditions
Min
Max
TJ = 25°C, VIN = 17V,
ILOAD = 5 mA
−12.4
−11.6
V
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
4
20
−14.5
80
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−32
V
Ripple Rejection
f = 120 Hz
56
80
30
dB
mV
Load Regulation,
(2)
TJ = 25°C, VIN = 17V,
5 mA ≤ ILOAD ≤ ID
Output Voltage,
(1)
14.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
MIN ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID
,
−12.6
−11.4
4
V
Quiescent Current
Quiescent Current
Change
V
2
mA
V
0.1
0.1
0.4
0.4
mA
mA
(1) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(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-N 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.
Copyright © 1998–2013, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Links: LM120 LM320-N
LM120, LM320-N
SNVS756C –APRIL 1998–REVISED APRIL 2013
www.ti.com
LM320T-12 ELECTRICAL CHARACTERISTICS (continued)
Power Plastic Package
Order Numbers
LM320T-12
(TO-220)
Units
Design Output Current (ID)
1A
Device Dissipation (PD)
15W
(1)
Parameter
Conditions
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 17V, 10 Hz ≤ f ≤ 100 kHz
Min
Typ
Max
Output Noise Voltage
400
μV
Long Term Stability
Thermal Resistance
Junction to Case
24
mV
4
°C/W
°C/W
Junction to Ambient
50
ABSOLUTE MAXIMUM RATINGS−15 VOLT REGULATORS(1)(2)
Power Dissipation
Internally Limited
Input Voltage
LM120/LM320-N
−40V
−35V
LM320T
Input-Output Voltage Differential
Junction Temperatures
Storage Temperature Range
Lead Temperature
(Soldering, 10 sec.)
30V
(3)
−65°C to +150°C
300°C
(1) Refer to RETS120-15H drawing for LM120H-15 or RETS120-15K drawing for LM120K-15 military specifications.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
LM120K-15 AND LM320K-15 ELECTRICAL CHARACTERISTICS
Metal Can Package
Order Numbers
LM120K-15
(TO-3)
LM320K-15
(TO-3)
Units
Design Output Current (ID)
Device Dissipation (PD)
1A
20W
(1)
Parameter
Output Voltage
Conditions
Min
Typ
Max
Min
Typ
Max
TJ = 25°C, VIN = 20V,
ILOAD = 5 mA
−15.3
−15
−14.7 −15.4
−15
−14.6
V
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
5
10
5
20
−17
80
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−35
−17
−35
V
Ripple Rejection
f = 120 Hz
56
80
30
56
80
30
dB
mV
Load Regulation,
(2)
TJ = 25°C, VIN = 20V,
5 mA ≤ ILOAD ≤ ID
80
Output Voltage,
(1)
17.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
,
−15.5
−14.5 −15.6
−14.4
4
V
Quiescent Current
V
2
4
2
mA
(1) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(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-N 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.
6
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Copyright © 1998–2013, Texas Instruments Incorporated
Product Folder Links: LM120 LM320-N
LM120, LM320-N
www.ti.com
SNVS756C –APRIL 1998–REVISED APRIL 2013
LM120K-15 AND LM320K-15 ELECTRICAL CHARACTERISTICS (continued)
Metal Can Package
Order Numbers
LM120K-15
(TO-3)
LM320K-15
(TO-3)
Units
Design Output Current (ID)
Device Dissipation (PD)
1A
20W
(1)
Parameter
Quiescent Current
Change
Conditions
Min
Typ
Max
Min
Typ
Max
TJ = 25°C
MIN ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID
V
0.1
0.1
400
0.4
0.4
0.1
0.1
400
0.4
0.4
mA
mA
μV
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 20V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability
Thermal Resistance
Junction to Case
15
150
15
150
mV
3
3
°C/W
°C/W
Junction to Ambient
35
35
LM120H-15 ELECTRICAL CHARACTERISTICS
Metal Can Package
Order Numbers
LM120H-15
(TO)
Units
Design Output Current (ID)
Device Dissipation (PD)
0.2A
2W
(1)
Parameter
Output Voltage
Conditions
TJ = 25°C, VIN = 20V,
Min
Typ
Max
−15.3
−15
−14.7
V
ILOAD = 5 mA
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
5
10
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−35
−17
25
V
Ripple Rejection
f = 120 Hz
56
80
10
dB
mV
Load Regulation,
(2)
TJ = 25°C, VIN = 20V,
5 mA ≤ ILOAD ≤ ID
Output Voltage,
(1)
17.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
MIN ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID
,
−15.5
−14.5
4
V
Quiescent Current
Quiescent Current
Change
V
2
mA
V
0.05
0.03
400
0.4
0.4
mA
mA
μV
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 20V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability
Thermal Resistance
Junction to Case
15
150
mV
(3)
(3)
°C/W
°C/W
Junction to Ambient
(1) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(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-N 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) 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.
Copyright © 1998–2013, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: LM120 LM320-N
LM120, LM320-N
SNVS756C –APRIL 1998–REVISED APRIL 2013
www.ti.com
LM320T-15 ELECTRICAL CHARACTERISTICS
Power Plastic Package
Order Numbers
LM320T-15
(TO-220)
Units
Design Output Current (ID)
1A
Device Dissipation (PD)
15W
(1)
Parameter
Output Voltage
Conditions
TJ = 25°C, VIN = 20V,
Min
Typ
Max
−15.5
−15
−14.5
V
ILOAD = 5 mA
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
5
20
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−35
−17.5
80
V
Ripple Rejection
f = 120 Hz
56
80
30
dB
mV
Load Regulation,
(2)
TJ = 25°C, VIN = 20V,
5 mA ≤ ILOAD ≤ ID
Output Voltage,
(1)
17.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
MIN ≤ VIN ≤ VMAX
,
−15.7
−14.3
4
V
Quiescent Current
Quiescent Current
Change
V
2
mA
V
0.1
0.1
400
0.4
0.4
mA
mA
μV
5 mA ≤ ILOAD ≤ ID
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 20V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability
Thermal Resistance
Junction to Case
30
mV
4
°C/W
°C/W
Junction to Ambient
50
(1) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(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-N 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.
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TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage vs
Temperature
Ripple Rejection
(All Types)
Figure 3.
Figure 4.
Output Impedance TO-3
and TO-220 Packages
Output Impedance TO-5
and TO-202 Packages
Figure 5.
Figure 6.
Minimum Input-Output
Differential TO-3 and
TO-220 Packages
Minimum Input-Output
Differential TO-5 and
TO-202 Packages
Figure 7.
Figure 8.
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TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Quiescent Current vs
Input Voltage
Quiescent Current vs
Load Current
Figure 9.
Figure 10.
Maximum Average Power
Dissipation (TO-3)
Maximum Average Power
Dissipation (TO-5)
*These curves for LM120. Derate 25°C further for LM320-N.
Figure 11.
Figure 12.
Maximum Average Power
Dissipation (TO-202)
Maximum Average Power
Dissipation (TO-220)
Figure 13.
Figure 14.
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TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Short Circuit Current
Figure 15.
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TYPICAL APPLICATIONS
Lead and line regulation — 0.01% temperature stability — 0.2%
†Determines Zener current.
††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 −15V when using the LM120-12 and −18V for the LM120-15.
**Select resistors to set output voltage. 2 ppm/°C tracking suggested.
Figure 16. High Stability 1 Amp Regulator
*Resistor tolerance of R1 and R2 determine matching of (+) and (−) 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.
Figure 17. Wide Range Tracking Regulator
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Figure 18. Current Source
SELECT R2 AS FOLLOWS:
LM120-5
LM120-12
LM120-15
300Ω
750Ω
1k
*C3 optional. Improves transient response and ripple rejection.
Figure 19. Variable Output Current Source
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See Performance (Typical)
*Resistor tolerance of R4 and R5 determine matching of (+) and (−) outputs.
**Necessary only if raw supply filter capacitors are more than 2 inches from regulators.
Figure 20. ±15V, 1 Amp Tracking Regulators
Performance (Typical)
Load Regulation at ΔIL = 1A
10 mV
1 mV
Output Ripple, CIN = 3000 μF,
IL = 1A
100 μVrms
100 μVrms
Temperature Stability
+50 mV
+50 mV
Output Noise 10 Hz ≤ f ≤ 10 kHz
150 μVrms
150 μVrms
Light Controllers Using Silicon Photo Cells
*Lamp brightness increases until iI = 5V/R1 (iI can be set as low as 1 μA).
†Necessary only if raw supply filter capacitor is more than 2 inches from LM320MP.
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*Lamp brightness increases until iI =iQ (1 mA) + 5V/R1.
†Necessary only if raw supply filter capacitor is more than 2 inches from LM320-N.
Connection Diagram
Figure 21. Steel Metal Can Package TO-3 (NDS)
(Bottom View)
Figure 22. Metal Can Package TO (NDT)
(Bottom View)
Figure 23. Power Package TO-220 (NDE)
(Front View)
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Schematic Diagrams
Figure 24. −5V
Figure 25. −12V and −15V
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SNVS756C –APRIL 1998–REVISED APRIL 2013
REVISION HISTORY
Changes from Revision B (April 2013) to Revision C
Page
•
Changed layout of National Data Sheet to TI format .......................................................................................................... 16
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PACKAGE OPTION ADDENDUM
www.ti.com
11-Apr-2013
PACKAGING INFORMATION
Orderable Device
LM120H-12
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
-55 to 150
-55 to 150
-55 to 150
-55 to 150
-55 to 150
-55 to 150
0 to 125
Top-Side Markings
Samples
Drawing
Qty
(1)
(2)
(3)
(4)
ACTIVE
TO
TO
NDT
3
3
3
3
3
3
3
3
500
Green (RoHS POST-PLATE
& no Sb/Br)
Level-1-NA-UNLIM
Level-1-NA-UNLIM
Level-1-NA-UNLIM
Level-1-NA-UNLIM
Level-1-NA-UNLIM
Level-1-NA-UNLIM
Call TI
LM120H-12P+
LM120H-12/NOPB
LM120H-15
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
NDT
NDT
NDT
NDT
NDT
NDE
NDE
500
500
500
500
500
45
Green (RoHS POST-PLATE
& no Sb/Br)
LM120H-12P+
LM120H-15P+
LM120H-15P+
LM120H-5.0P+
LM120H-5.0P+
TO
Green (RoHS POST-PLATE
& no Sb/Br)
LM120H-15/NOPB
LM120H-5.0
TO
Green (RoHS POST-PLATE
& no Sb/Br)
TO
Green (RoHS POST-PLATE
& no Sb/Br)
LM120H-5.0/NOPB
LM320T-15
TO
Green (RoHS POST-PLATE
& no Sb/Br)
TO-220
TO-220
TBD
Call TI
LM320T
-15 P+
LM320T-15/NOPB
45
Green (RoHS
& no Sb/Br)
CU SN
Level-1-NA-UNLIM
0 to 125
LM320T
-15 P+
(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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
11-Apr-2013
(4)
Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a
continuation of the previous line and the two combined represent the entire Top-Side Marking for that device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
MECHANICAL DATA
NDT0003A
H03A (Rev D)
www.ti.com
MECHANICAL DATA
NDE0003B
www.ti.com
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相关型号：
LM320T-15MWC
IC VREG 15 V FIXED NEGATIVE REGULATOR, UUC, WAFER, Fixed Negative Single Output Standard Regulator
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