TI JL137SYA

LM137JAN
LM137JAN 3-Terminal Adjustable Negative Regulators
Literature Number: SNVS332A
LM137JAN
3-Terminal Adjustable Negative Regulators
General Description
Features
The LM137 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of −1.5A over an output
voltage range of −37V to −1.2V. These regulators are exceptionally easy to apply, requiring only 2 external resistors to set
the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent
regulation and low thermal transients. Further, the LM137 series features internal current limiting, thermal shutdown and
safe-area compensation, making them virtually blowout-proof
against overloads.
The LM137 serves a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM137 are ideal
complements to the LM117 adjustable positive regulators.
■
■
■
■
■
■
■
■
■
■
■
■
Output voltage adjustable from −37V to −1.2V
1.5A output current guaranteed, −55°C to +150°C
Line regulation typically 0.01%/V
Load regulation typically 0.3%
Excellent thermal regulation, 0.002%/W
77 dB ripple rejection
Excellent rejection of thermal transients
50 ppm/°C temperature coefficient
Temperature-independent current limit
Internal thermal overload protection
Standard 3-lead transistor package
Output is short circuit protected
LM137 Series Packages and Power Capability
Device
Package
Rated
Power
Dissipation
Design
Load
Current
LM137
TO-3 (K)
TO-39 (H)
20W
2W
1.5A
0.5A
Ordering Information
NS Part Number
JAN Part Number
NS Package Number
Package Description
JL137BXA
JM38510/11803BXA
H03A
3LD T0–39 Metal Can
JL137SXA
JM38510/11803SXA
H03A
3LD T0–39 Metal Can
JL137SYA
JM38510/11804SYA
K02C
2LD Low Profile T0–3 Metal Can
© 2011 National Semiconductor Corporation
201297
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LM137JAN 3-Terminal Adjustable Negative Regulators
December 8, 2010
LM137JAN
Connection Diagrams
TO-3
Metal Can Package
TO-39
Metal Can Package
20129706
Case Is Input
Bottom View
See NS Package Number H03A
20129705
Case is Input
Bottom View
See NS Package Number K02C
Typical Applications
Adjustable Negative Voltage Regulator
20129701
Full output current not available at high input-output voltages
†C1 = 1 μF solid tantalum or 10 μF aluminum electrolytic required for stability
*C2 = 1 μF solid tantalum is required only if regulator is more than 4″ from power-supply filter capacitor
Output capacitors in the range of 1 μF to 1000 μF of aluminum or tantalum electrolytic are commonly used to provide improved output impedance and rejection
of transients
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2
LM137JAN
Absolute Maximum Ratings (Note 1)
Power Dissipation (Note 2)
Input-Output Voltage Differential
Operating Ambient Temperature Range
Internally Limited
40V
−55°C ≤ TA ≤ +125°C
−55°C ≤ TJ ≤ +150°C
+150°C
Operating Junction Temperature Range
Maximum Junction Temperature
Storage Temperature
−65°C ≤ TA ≤ +150°C
300°C
−41.25V
Lead Temperature (Soldering, 10 sec.)
Minimum Input Voltage
Maximum Power Dissipation (@25°C)
T0–3
T0–39
Thermal Resistance
28 Watts
2.5Watts
θJA
T0–3 Metal Can (Still Air)
T0–3 Metal Can (500LF/Min Air Flow)
T0–39 Metal Can (Still Air @ 0.5W)
T0–39 Metal Can (500LF/Min Air Flow @ 0.5W)
40°C/W
14°C/W
174°C/W
64°C/W
θJC
T0–3
T0–39 Metal Can (@ 1.0W)
Package Weight (typical)
T0–3
T0–39 Metal Can
ESD Rating (Note 3)
4°C/W
15°C/W
12,750mg
955mg
4K Volts
Recommended Operating Conditions
−55°C ≤ TA ≤ +125°C
TA
Input Voltage Range
−41.25V to −4.25V
Quality Conformance Inspection
Mil-Std-883, Method 5005 — Group A
Subgroup
Description
Temp (°C)
1
Static tests at
+25
2
Static tests at
+125
3
Static tests at
-55
4
Dynamic tests at
+25
5
Dynamic tests at
+125
6
Dynamic tests at
-55
7
Functional tests at
+25
8A
Functional tests at
+125
8B
Functional tests at
-55
9
Switching tests at
+25
10
Switching tests at
+125
11
Switching tests at
-55
3
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LM137JAN
LM137H
Electrical Characteristics
DC Parameters
Symbol
Parameter
Conditions
Notes
VIN = -4.25V, IL = 5mA
VIN = -4.25V, IL = 500mA
VOUT
VR Load
VRth
IAdj
Load Regulation
Thermal Regulation
Adjust Pin Current
ΔIAdj / VLine Adjust Pin Current Change vs.
Line Voltage
ΔIAdj / ILoad
Adjust Pin Current Change vs.
Load Current
IOS
Output Short Circuit Current
VOUT
Recovery
IQ
Output Voltage Recovery After
Output Short Circuit Current
Minimum Load Current
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
-1.275
-1.225
V
1
2, 3
-1.2
V
-1.225
V
1
-1.3
-1.2
V
2, 3
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
VIN = -41.25V to -4.25V,
IL = 5mA
-9.0
9.0
mV
1
-23
23
mV
2, 3
VIN = -6.25V, IL = 5mA to 500mA
-12
12
mV
1
-24
24
mV
2, 3
VIN = -41.25V, IL = 5mA to 50mA
-6.0
6.0
mV
1
-12
12
mV
2, 3
VIN = -6.25V, IL = 5mA to 200mA
-6.0
6.0
mV
1
-12
12
mV
2, 3
VIN = -14.6V, IL = 500mA
-5.0
5.0
mV
1
VIN = -4.25V, IL = 5mA
25
100
µA
1, 2, 3
VIN = -41.25V, IL = 5mA
25
100
µA
1, 2, 3
VIN = -41.25V to -4.25V,
IL = 5mA
-5.0
5.0
µA
1, 2, 3
VIN = -6.25V, IL = 5mA to 500mA
-5.0
5.0
µA
1, 2, 3
VIN = -4.25V
0.5
1.8
A
1, 2, 3
1, 2, 3
VIN = -40V
0.05
0.5
A
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
VIN = -4.25V
0.2
3.0
mA
1, 2, 3
VIN = -14.25V
0.2
3.0
mA
1, 2, 3
VIN = -41.25V
1.0
5.0
mA
1, 2, 3
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
-1.3
-1.2
V
VIN = -4.25V
VIN = -40V
VStart
Voltage Start-up
VIN = -4.25V, IL = 500mA
VOUT
Output Voltage
VIN = -6.25V, IL = 5mA
(No Subgroup)
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Units
-1.3
VIN = -41.25V, IL = 50mA
Line Regulation
Max
-1.275
Output Voltage
VIN = -41.25V, IL = 5mA
VR Line
Subgroups
Min
4
(Note 4)
Symbol
ΔVIN /
ΔVOUT
VNO
ΔVOUT /
ΔVIN
4
VIN = -6.25V, IL = 125mA,
eI = 1VRMS at 2400Hz
Output Noise Voltage
VIN = -6.25V, IL = 50mA
120
µVRMS
Line Transient Response
VIN = -6.25V, VPulse = -1V,
IL = 50mA
80
mV/V
7
60
mV
7
Min
Max
Units
Subgroups
VIN = -4.25V, IL = 5mA
-0.01
0.01
V
1
VIN = -4.25V, IL = 500mA
-0.01
0.01
V
1
VIN = -41.25V, IL = 5mA
-0.01
0.01
V
1
VIN = -41.25V, IL = 50mA
-0.01
0.01
V
1
VIN = 41.25V to -4.25V, IL = 5mA
-4.0
4.0
mV
1
VIN = -4.25V, IL = 5mA
-10
10
µA
1
VIN = -41.25V, IL = 5mA
-10
10
µA
1
DC Parameters:
ΔIL = 200mA
Max
dB
Ripple Rejection
VIN = -6.25V, IL = 50mA,
Min
Subgroups
Conditions
ΔVOUT / ΔIL Load Transient Response
Notes
Units
Parameter
48
(Note 5)
Drift Values
Delta calculations performed on JAN S devices at group B, subgroup 5 only.
Symbol
VOUT
VR Line
IAdj
Parameter
Output Voltage
Line Regulation
Adjust Pin Current
Conditions
Notes
5
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LM137JAN
AC Parameters
LM137JAN
LM137K
Electrical Characteristics
DC Parameters:
Symbol
Parameter
Conditions
Notes
VIN = -4.25V, IL = 5mA
VIN = -4.25V, IL = 1.5A
VOUT
Output Voltage
VIN = -41.25V, IL = 5mA
VIN = -41.25V, IL = 200mA
VR Line
Line Regulation
-41.25V ≤ VIN ≤ -4.25V, IL = 5mA
Load Regulation
VRth
Thermal Regulation
IAdj
Adjust Pin Current
ΔIAdj / VLine Adjust Pin Current Change vs.
Line Voltage
ΔIAdj / ILoad
Adjust Pin Current Change vs.
Load Current
IOS
Output Short Circuit Current
VOUT
Recovery
IQ
VOUT
Output Voltage
-1.225
V
1
-1.3
-1.2
V
2, 3
-1.275
-1.225
V
1
2, 3
-1.3
-1.2
V
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
-9.0
9.0
mV
1
2, 3
23
mV
mV
1
-12
12
mV
2, 3
VIN = -41.25V,
IL = 5mA to 200mA
-6.0
6.0
mV
1
-12
12
mV
2, 3
VIN = -14.6V, IL = 1.5A
-5.0
5.0
mV
1
VIN = -4.25V, IL = 5mA
25
100
µA
1, 2, 3
VIN = -41.25V, IL = 5mA
25
100
µA
1, 2, 3
-41.25V ≤ VIN ≤ -4.25, IL = 5mA
-5.0
5.0
µA
1, 2, 3
VIN = -6.25V, IL = 5mA to 1.5A
-5.0
5.0
µA
1, 2, 3
VIN = -4.25V
1.5
3.5
A
1, 2, 3
1, 2, 3
VIN = -40V
0.2
1.0
A
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
-1.275
-1.225
V
1
-1.3
-1.2
V
2, 3
VIN = -4.25V
0.2
3.0
mA
1, 2, 3
VIN = -14.25V
0.2
3.0
mA
1, 2, 3
VIN = -41.25V
1.0
5.0
mA
1, 2, 3
VIN = 4.25V, IL = 1.5A
-1.275
-1.225
V
1
VIN = 4.25V, IL = 1.5A
-1.3
-1.2
V
2, 3
-1.3
-1.2
V
VIN = -40V
Voltage Start-up
-1.275
6.0
Output Voltage Recovery
VStart
Units
-23
VIN = -4.25V
Minimum Load Current
Max
-6.0
VIN = -6.25V, IL = 5mA to 1.5A
VR Load
Subgroups
Min
VIN = -6.25V, IL = 5mA
No Subgroup
(Note 4)
AC Parameters:
4
ΔVIN /
Ripple Rejection
VIN = -6.25V, IL = 500mA,
eI = 1VRMS at 2400Hz
VNO
Output Noise Voltage
VIN = -6.25V, IL = 100mA
120
µVRMS
ΔVOUT /
Line Transient Response
ΔVIN
VIN = -6.25V, IL = 100mA,
VPulse = -1V
80
mV/V
7
ΔVOUT / ΔIL Load Transient Response
VIN = -6.25V, IL = 100mA,
60
mV
7
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6
Max
dB
Conditions
ΔIL = 400mA
Min
Subgroups
Parameter
ΔVOUT
Notes
Units
Symbol
50
(Note 6)
Drift Values
Delta calculations performed on JAN S devices at group B, subgroup 5 only.
Min
Max
Units
Subgroups
VIN = -4.25V, IL = 5mA
-0.01
0.01
V
1
Line Regulation
VIN = -41.25V to -4.25, IL = 5mA
-4.0
4.0
mV
1
Adjust Pin Current
VIN = -41.25V, IL = 5mA
-10
10
µA
1
Symbol
Parameter
Conditions
VOUT
Output Voltage
VR line
IAdj
Notes
Note 1: 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 guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package
junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/
θJA or the number given in the Absolute Maximum Ratings, whichever is lower.
Note 3: Human body model, 100pF discharged through 1.5KΩ
Note 4: Tested at +125°C ; correlated to +150°C
Note 5: Slash sheet limit of 0.3mV/mA is equivalent to 60mV
Note 6: Slash sheet limit of 0.15mV/mA is equivalent to 60mV
7
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LM137JAN
DC Parameters:
LM137JAN
Schematic Diagram
20129702
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8
When power is dissipated in an IC, a temperature gradient
occurs across the IC chip affecting the individual IC circuit
components. With an IC regulator, this gradient can be especially severe since power dissipation is large. Thermal regulation is the effect of these temperature gradients on output
voltage (in percentage output change) per Watt of power
20129703
LM137, VOUT = −10V
VIN − VOUT = −40V
IIL = 0A → 0.25A → 0A
Vertical sensitivity, 5 mV/div
FIGURE 1.
In Figure 1, a typical LM137's output drifts only 3 mV (or
0.03% of VOUT = −10V) when a 10W pulse is applied for
10 ms. This performance is thus well inside the specification
limit of 0.02%/W × 10W = 0.2% max. When the 10W pulse is
ended, the thermal regulation again shows a 3 mV step as the
LM137 chip cools off. Note that the load regulation error of
about 8 mV (0.08%) is additional to the thermal regulation error. In Figure 2, when the 10W pulse is applied for 100 ms,
the output drifts only slightly beyond the drift in the first
10 ms, and the thermal error stays well within 0.1% (10 mV).
20129704
LM137, VOUT = −10V
VIN − VOUT = −40V
IL = 0A → 0.25A → 0A
Horizontal sensitivity, 20 ms/div
FIGURE 2.
9
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LM137JAN
change in a specified time. Thermal regulation error is independent of electrical regulation or temperature coefficient,
and occurs within 5 ms to 50 ms after a change in power dissipation. Thermal regulation depends on IC layout as well as
electrical design. The thermal regulation of a voltage regulator
is defined as the percentage change of VOUT, per Watt, within
the first 10 ms after a step of power is applied. The LM137's
specification is 0.02%/W, max.
Thermal Regulation
LM137JAN
−5.2V Regulator with Electronic Shutdown*
Typical Applications
Adjustable Lab Voltage Regulator
20129710
*Minimum output ″ −1.3V when control input is low
Adjustable Current Regulator
20129709
Full output current not available
at high input-output voltages
*The 10 μF capacitors are optional to improve ripple rejection
Current Regulator
20129712
High Stability −10V Regulator
20129711
Negative Regulator with Protection Diodes
20129714
20129713
*When CL is larger than 20 μF, D1 protects the LM137 in case the input
supply is shorted
**When C2 is larger than 10 μF and −VOUT is larger than −25V, D2 protects
the LM137 in case the output is shorted
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10
LM137JAN
Typical Performance Characteristics
(H & K Packages)
Load Regulation
Current Limit
20129716
20129717
Adjustment Current
Dropout Voltage
20129718
20129719
Temperature Stability
Minimum Operating Current
20129720
20129721
11
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LM137JAN
Ripple Rejection
Ripple Rejection
20129722
20129723
Ripple Rejection
Output Impedance
20129724
20129725
Line Transient Response
Load Transient Response
20129726
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20129727
12
Date Released
12/08/2010
Revision
A
Section
Changes
New Release, Corporate format
13
2 MDS data sheets converted into one Corp. data
sheet format. MJLM137-H Rev. 0A0, MJLM137-K
Rev. 0A0. MDS data sheets will be archived.
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LM137JAN
Revision History
LM137JAN
Physical Dimensions inches (millimeters) unless otherwise noted
Metal Can Package (H)
NS Package Number H03A
Metal Can Package (K)
NS Package Number K02C
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14
LM137JAN
Notes
15
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LM137JAN 3-Terminal Adjustable Negative Regulators
Notes
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microcontroller.ti.com
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