TI LM337KTTRG3 3-terminal adjustable regulator Datasheet

LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
www.ti.com
SLVS047J – NOVEMBER 1981 – REVISED MAY 2007
FEATURES
•
•
•
•
Output Voltage Range Adjustable From
–1.2 V to –37 V
Output Current Capability of 1.5 A Max
Input Regulation Typically 0.01% Per
Input-Voltage Change
Output Regulation Typically 0.3%
•
Peak Output Current Constant Over
Temperature Range of Regulator
Ripple Rejection Typically 77 dB
Direct Replacement for Industry-Standard
LM237 and LM337
•
•
OUTPUT
INPUT
ADJUSTMENT
LM337...KCS (TO-220) PACKAGE
(TOP VIEW)
INPUT
INPUT
LM237, LM337...KC (TO-220) PACKAGE
(TOP VIEW)
LM337...KTE, KTP, OR KVU PACKAGE
(TOP VIEW)
INPUT
ADJUSTMENT
LM337...KTT (TO-263) PACKAGE
(TOP VIEW)
OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
INPUT
ADJUSTMENT
INPUT
ADJUSTMENT
DESCRIPTION/ORDERING INFORMATION
The LM237 and LM337 are adjustable 3-terminal negative-voltage regulators capable of supplying in excess of
–1.5 A over an output voltage range of –1.2 V to –37 V. They are exceptionally easy to use, requiring only two
external resistors to set the output voltage and one output capacitor for frequency compensation. The current
design has been optimized for excellent regulation and low thermal transients. In addition, the LM237 and
LM337 feature internal current limiting, thermal shutdown, and safe-area compensation, making them virtually
immune to failure by overloads.
The LM237 and LM337 serve a wide variety of applications, including local on-card regulation, programmable
output-voltage regulation, and precision current regulation.
ORDERING INFORMATION
PACKAGE (1)
TJ
–25°C to 150°C
0°C to 125°C
(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
TO-220 – KC
Tube of 50
LM237KC
LM237
PowerFLEX™ – KTE
Reel of 2000
LM337KTER
LM337
PowerFLEX – KTP
Reel of 3000
LM337KTPR
L337
TO-220 – KC
Tube of 50
LM337KC
LM337
TO-220 – KCS
Tube of 50
LM337KCSE3
LM337
TO-252 – KVU
Reel of 2500
LM337KVURG3
LM337
TO-263 – KTT
Reel of 500
LM337KTTR
LM337
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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.
PowerFLEX is a trademark of Texas Instruments.
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 © 1981–2007, Texas Instruments Incorporated
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
www.ti.com
SLVS047J – NOVEMBER 1981 – REVISED MAY 2007
SCHEMATIC DIAGRAM
ADJUSTMENT
OUTPUT
INPUT
Absolute Maximum Ratings (1)
over operating temperature ranges (unless otherwise noted)
MIN
MAX
UNIT
VI – VO
Input-to-output differential voltage
–40
V
TJ
Operating virtual junction temperature
150
°C
260
°C
150
°C
Lead temperature
Tstg
(1)
1,6 mm (1/16 in) from case for 10 s
Storage temperature range
–65
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Package Thermal Data (1)
PACKAGE
θJC
θJA
PowerFLEX (KTE)
High K, JESD 51-5
3°C/W
23°C/W
PowerFLEX (KTP)
High K, JESD 51-5
19°C/W
28°C/W
TO-220 (KC)
High K, JESD 51-5
3°C/W
19°C/W
TO-220 (KCS)
High K, JESD 51-5
3°C/W
24.8°C/W
TO-252 (KVU)
High K, JESD 51-5
TO-263 (KTT)
High K, JESD 51-5
(1)
2
BOARD
30.3°C/W
18°C/W
25.3°C/W
Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
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LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
www.ti.com
SLVS047J – NOVEMBER 1981 – REVISED MAY 2007
Recommended Operating Conditions
IO
Output current
TJ
Operating virtual junction temperature
MIN
MAX
|VI – VO| ≤ 40 V, P ≤ 15 W
10
1500
|VI – VO| ≤ 10 V, P ≤ 15 W
6
1500
LM237
–25
150
LM337
0
125
UNIT
mA
°C
Electrical Characteristics
over recommended ranges of operating virtual junction temperature (unless otherwise noted)
PARAMETER
Input regulation (2)
Ripple rejection
Output regulation
TEST CONDITIONS (1)
VI – VO = –3 V to –40 V
LM237
MIN
MAX
TJ = 25°C
0.01
TJ = MIN to MAX
0.02
VO = –10 V, f = 120 Hz
66
|VO| ≤ 5 V
IO = 10 mA to 1.5 A,
TJ = 25°C
|VO| ≥ 5 V
0.02
0.01
0.04
0.05
0.02
0.07
60
66
0.3
mV
1
%
50
70
mV
|VO| ≥ 5 V
1
1.5
%
Output-voltage
long-term drift
After 1000 h at TJ = MAX and VI – VO = –40 V
0.3
Output noise voltage
f = 10 Hz to 10 kHz, TJ = 25°C
0.3
%/V
dB
77
50
0.5
UNIT
|VO| ≤ 5 V
0.6
0.6
1
0.3
0.003
%
1
0.003
2.5
5
2.5
10
|VI – VO| ≤ 10 V
1.2
3
1.5
6
|VI – VO| ≤ 15 V
|VI – VO| ≤ 40 V, TJ = 25°C
1.5
2.2
1.5
2.2
0.24
0.4
0.15
0.4
Change in ADJUSTMENT
current
VI – VO = –2.5 V to –40 V, IO = 10 mA to MAX,
TJ = 25°C
Reference voltage
(OUTPUT to
ADJUSTMENT)
VI – VO = –3 V to –40 V,
IO = 10 mA to 1.5 A,
P ≤ rated dissipation
Thermal regulation
Initial TJ = 25°C, 10-ms pulse
TJ = 25°C
TJ = MIN to MAX
–1.225
–1.2
%
%
|VI – VO| ≤ 40 V
ADJUSTMENT current
(2)
MAX
25
TJ = MIN to MAX
(1)
TYP
77
Output-voltage change
with temperature
Peak output current
MIN
60
VO = –10 V, f = 120 Hz, CADJ = 10 µF
IO = 10 mA to 1.5 A
Minimum output current to
maintain regulation
LM337
TYP
mA
A
65
100
65
100
µA
2
5
2
5
µA
–1.25 –1.275 –1.213
–1.25 –1.287
–1.25
–1.3
–1.25
–1.3
0.002
0.02
0.003
0.04
–1.2
V
%/W
Unless otherwise noted, the following test conditions apply: |VI – VO| = 5 V and IO = 0.5 A. For conditions shown as MIN or MAX, use
the appropriate value specified under recommended operating conditions. All characteristics are measured with a 0.1-µF capacitor
across the input and a 1-µF capacitor across the output. Pulse-testing techniques are used to maintain the junction temperature as close
to the ambient temperature as possible. Thermal effects must be taken into account separately.
Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
Submit Documentation Feedback
3
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
www.ti.com
SLVS047J – NOVEMBER 1981 – REVISED MAY 2007
Electrical Characteristics
TJ = 25°C
PARAMETER
Input regulation (2)
Ripple rejection
VO = –10 V, f = 120 Hz
Output noise voltage
f = 10 Hz to 10 kHz
66
|VO| ≥ 5 V
4
0.01
0.04
0.3
mV
1
%
%
2.5
10
|VI – VO| ≤ 10 V
1.5
6
1.5
2.2
|VI – VO| ≤ 40 V
0.15
0.4
VI – VO = –2.5 V to –40 V, IO = 10 mA to MAX
Reference voltage
(OUTPUT to ADJUSTMENT)
VI – VO = –3 V to –40 V, IO = 10 mA to 1.5 A,
P ≤ rated dissipation
–1.213
%/V
50
0.003
|VI – VO| ≤ 15 V
UNIT
dB
77
|VI – VO| ≤ 40 V
Change in ADJUSTMENT current
(2)
MAX
|VO| ≤ 5 V
ADJUSTMENT current
(1)
TYP
60
VO = –10 V, f = 120 Hz, CADJ = 10 µF
IO = 10 mA to 1.5 A
Peak output current
MIN
VI – VO = –3 V to –40 V
Output regulation
Minimum output current to maintain
regulation
LM237, LM337
TEST CONDITIONS (1)
mA
A
65
100
µA
2
5
µA
–1.25
–1.287
V
Unless otherwise noted, the following test conditions apply: |VI – VO| = 5 V and IO = 0.5 A. All characteristics are measured with a
0.1-µF capacitor across the input and a 1-µF capacitor across the output. Pulse-testing techniques are used to maintain the junction
temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately.
Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
Submit Documentation Feedback
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
www.ti.com
SLVS047J – NOVEMBER 1981 – REVISED MAY 2007
APPLICATION INFORMATION
LM237
or
LM337
INPUT
VI
OUTPUT
VO
ADJUSTMENT
R1
C1
C2
+
+
R2
R1 typically is 120 Ω.
ǒ
R2 + R1
Ǔ
–V
O *1
–1..25
, where VO is the output in volts.
C1 is a 1-µF solid tantalum capacitor required only if the regulator is more than 10 cm (4 in) from the power-supply filter capacitor.
C2 is a 1-µF solid tantalum or 10-µF aluminum electrolytic capacitor required for stability.
Figure 1. Adjustable Negative-Voltage Regulator
LM237
or
LM337
RS
VI
INPUT
OUTPUT
VO
ADJUSTMENT
RS =
1.25 V
ILIMIT
Figure 2. Current-Limiting Circuit
Submit Documentation Feedback
5
PACKAGE OPTION ADDENDUM
www.ti.com
18-Sep-2007
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
LM237KC
NRND
TO-220
KC
3
50
Pb-Free
(RoHS)
CU SN
N / A for Pkg Type
LM237KCE3
NRND
TO-220
KC
3
50
Pb-Free
(RoHS)
CU SN
N / A for Pkg Type
LM237KCSE3
ACTIVE
TO-220
KCS
3
50
Pb-Free
(RoHS)
CU SN
N / A for Pkg Type
LM237KTER
OBSOLETE
PFM
KTE
3
TBD
Call TI
Call TI
LM337KC
NRND
TO-220
KC
3
50
Pb-Free
(RoHS)
CU SN
N / A for Pkg Type
LM337KCE3
NRND
TO-220
KC
3
50
Pb-Free
(RoHS)
CU SN
N / A for Pkg Type
LM337KCSE3
ACTIVE
TO-220
KCS
3
50
Pb-Free
(RoHS)
CU SN
N / A for Pkg Type
LM337KTER
NRND
PFM
KTE
3
2000
TBD
CU SN
Level-3-240C-168 HR
LM337KTPR
NRND
PFM
KTP
2
3000 Green (RoHS &
no Sb/Br)
CU SN
Level-1-260C-UNLIM
LM337KTPRG3
NRND
PFM
KTP
2
3000 Green (RoHS &
no Sb/Br)
CU SN
Level-1-260C-UNLIM
LM337KTTR
ACTIVE
DDPAK/
TO-263
KTT
3
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
LM337KTTRG3
ACTIVE
DDPAK/
TO-263
KTT
3
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
LM337KVURG3
ACTIVE
PFM
KVU
3
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-3-260C-168 HR
LM337Y
OBSOLETE
DIESALE
Y
0
Call TI
Call TI
TBD
Lead/Ball Finish
MSL Peak Temp (3)
(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.
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
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
18-Sep-2007
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
PACKAGE MATERIALS INFORMATION
www.ti.com
5-Oct-2007
TAPE AND REEL BOX INFORMATION
Device
Package Pins
Site
Reel
Diameter
(mm)
Reel
Width
(mm)
A0 (mm)
B0 (mm)
K0 (mm)
P1
(mm)
W
Pin1
(mm) Quadrant
LM337KTTR
KTT
3
SITE 45
330
24
10.6
15.8
4.9
16
24
Q2
LM337KVURG3
KVU
3
SITE 45
330
16
6.9
10.5
2.7
8
16
Q2
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
Device
5-Oct-2007
Package
Pins
Site
Length (mm)
Width (mm)
Height (mm)
LM337KTTR
KTT
3
SITE 45
340.0
340.0
38.0
LM337KVURG3
KVU
3
SITE 45
340.0
340.0
38.0
Pack Materials-Page 2
MECHANICAL DATA
MPFM001E – OCTOBER 1994 – REVISED JANUARY 2001
KTE (R-PSFM-G3)
PowerFLEX PLASTIC FLANGE-MOUNT
0.375 (9,52)
0.080 (2,03)
0.070 (1,78)
0.365 (9,27)
0.360 (9,14)
0.050 (1,27)
0.040 (1,02)
0.350 (8,89)
0.220 (5,59)
NOM
0.010 (0,25) NOM
Thermal Tab
(See Note C)
0.360 (9,14)
0.350 (8,89)
0.295 (7,49)
NOM
0.320 (8,13)
0.310 (7,87)
0.420 (10,67)
0.410 (10,41)
1
3
0.025 (0,63)
0.031 (0,79)
0.100 (2,54)
Seating Plane
0.004 (0,10)
0.010 (0,25) M
0.005 (0,13)
0.001 (0,03)
0.200 (5,08)
0.041 (1,04)
0.031 (0,79)
0.010 (0,25)
NOM
Gage Plane
3°– 6°
0.010 (0,25)
4073375/F 12/00
NOTES: A.
B.
C.
D.
E.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
The center lead is in electrical contact with the thermal tab.
Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
Falls within JEDEC MO-169
PowerFLEX is a trademark of Texas Instruments.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
MECHANICAL DATA
MPSF001F – JANUARY 1996 – REVISED JANUARY 2002
KTP (R-PSFM-G2)
PowerFLEX PLASTIC FLANGE-MOUNT PACKAGE
0.080 (2,03)
0.070 (1,78)
0.243 (6,17)
0.233 (5,91)
0.228 (5,79)
0.218 (5,54)
0.050 (1,27)
0.040 (1,02)
0.010 (0,25) NOM
0.130 (3,30) NOM
0.215 (5,46)
NOM
0.247 (6,27)
0.237 (6,02)
Thermal Tab
(See Note C)
0.287 (7,29)
0.277 (7,03)
0.381 (9,68)
0.371 (9,42)
0.100 (2,54)
0.090 (2,29)
0.032 (0,81) MAX
Seating Plane
0.090 (2,29)
0.180 (4,57)
0.004 (0,10)
0.005 (0,13)
0.001 (0,02)
0.031 (0,79)
0.025 (0,63)
0.010 (0,25) M
0.010 (0,25) NOM
Gage Plane
0.047 (1,19)
0.037 (0,94)
0.010 (0,25)
2°–ā6°
4073388/M 01/02
NOTES: A.
B.
C.
D.
E.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
The center lead is in electrical contact with the thermal tab.
Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
Falls within JEDEC TO-252 variation AC.
PowerFLEX is a trademark of Texas Instruments.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
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