TI LM2990SX-5.0 Lm2990 negative low dropout regulator Datasheet

LM2990
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SNVS093D – JUNE 1999 – REVISED APRIL 2013
LM2990 Negative Low Dropout Regulator
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FEATURES
DESCRIPTION
•
The LM2990 is a three-terminal, low dropout, 1
ampere negative voltage regulator available with fixed
output voltages of −5, −5.2, −12, and −15V.
1
2
•
•
•
•
•
•
5% Output Accuracy over Entire Operating
Range
Output Current in Excess of 1A
Dropout Voltage Typically 0.6V at 1A Load
Low Quiescent Current
Internal Short Circuit Current Limit
Internal Thermal Shutdown with Hysteresis
Functional Complement to the LM2940 Series
APPLICATIONS
•
•
•
Post Switcher Regulator
Local, On-Card, Regulation
Battery Operated Equipment
The LM2990 uses new circuit design techniques to
provide low dropout and low quiescent current. The
dropout voltage at 1A load current is typically 0.6V
and an ensured worst-case maximum of 1V over the
entire operating temperature range. The quiescent
current is typically 1 mA with 1A load current and an
input-output voltage differential greater than 3V. A
unique circuit design of the internal bias supply limits
the quiescent current to only 9 mA (typical) when the
regulator is in the dropout mode (VOUT − VIN ≤ 3V).
Output voltage accuracy is ensured to ±5% over load,
and temperature extremes.
The LM2990 is short-circuit proof, and thermal
shutdown includes hysteresis to enhance the
reliability of the device when overloaded for an
extended period of time. The LM2990 is available in a
3-lead package and is rated for operation over the
automotive temperature range of −40°C to +125°C.
Typical Application
*Required if the regulator is located further than 6 inches from the power supply filter capacitors. A 1 μF solid
tantalum or a 10 μF aluminum electrolytic capacitor is recommended.
**Required for stability. Must be at least a 10 μF aluminum electrolytic or a 1 μF solid tantalum to maintain stability.
May be increased without bound to maintain regulation during transients. Locate the capacitor as close as possible to
the regulator. The equivalent series resistance (ESR) is critical, and should be less than 10Ω over the same operating
temperature range as the regulator.
1
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.
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 © 1999–2013, Texas Instruments Incorporated
LM2990
SNVS093D – JUNE 1999 – REVISED APRIL 2013
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Connection Diagrams
Front View
Figure 1. 3-Lead TO-220 Package
See Package Number NDE0003B
Top View
Side View
Figure 2. Surface-Mount DDPAK/TO-263 Package
See Package Number KTT0003B
Figure 3. Surface-Mount DDPAK/TO-263 Package
See Package Number KTT0003B
Top View
Top View
Figure 4. 16-Lead CDIP Package
See Package Number NFE0016A
Figure 5. 16-Lead CLGA Package
See Package Number NAC0016A
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)
−26V to +0.3V
Input Voltage
(3)
2 kV
Power Dissipation (4)
Internally Limited
ESD Susceptibility
Junction Temperature (TJmax)
125°C
−65°C to +150°C
Storage Temperature
Soldering Temperature
(1)
(2)
(3)
(4)
2
TO-220 (T), Wave
260°C, 10 sec
DDPAK/TO-263 (S)
235°C, 30 sec
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.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
Human body model, 100 pF discharged through a 1.5 kΩ resistor.
The maximum power dissipation is a function of TJmax, θJA, and TA. The maximum allowable power dissipation at any ambient
temperature is PD = (TJmax − TA)/θJA. If this dissipation is exceeded, the die temperature will rise above 125°C, and the LM2990 will
eventually go into thermal shutdown at a TJ of approximately 160°C. For the LM2990, the junction-to-ambient thermal resistance, is
53°C/W, 73°C/W for the DDPAK/TO-263, and the junction-to-case thermal resistance is 3°C. If the DD[AK/TO-263 package is used, the
thermal resistance can be reduced by increasing the P.C. board copper area thermally connected to the package. Using 0.5 square
inches of copper area, θJA is 50°C/W; with 1 square inch of copper area, θJA is 37°C/W; and with 1.6 or more square inches of copper
area, θJA is 32°C/W.
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Operating Ratings (1)
−40°C to +125°C
Junction Temperature Range (TJ)
−26V
Maximum Input Voltage (Operational)
(1)
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.
Electrical Characteristics
VIN = −5V + VO(NOM) (1), IO = 1A, CO = 47 μF, unless otherwise specified. Boldface limits apply over the entire operating
temperature range, −40°C ≤ TJ ≤ 125°C, all other limits apply for TJ = 25°C.
Parameter
Output Voltage (VO)
Conditions
LM2990-5.0
Typ (2)
5 mA ≤ IO ≤ 1A
LM2990-5.2
Limit (3)
Limit (3)
Units
(Limit)
−4.90
−5.10
V (max)
−5.10
−5.30
mV (min)
−4.75
−4.94
V (max)
−5.25
−5.46
V (min)
40
mV (max)
−5
5 mA ≤ IO ≤ 1A
Typ (2)
−5.2
V
Line Regulation
IO = 5 mA,
VO(NOM) −1V > VIN > −26V
Load Regulation
50 mA ≤ IO ≤ 1A
1
40
1
40
mV (max)
Dropout Voltage
IO = 0.1A, ΔVO ≤ 100 mV
0.1
0.3
0.1
0.3
V (max)
IO = 1A, ΔVO ≤ 100 mV
0.6
1
0.6
1
V (max)
Quiescent Current (Iq)
4
40
4
IO ≤ 1A
1
5
1
5
mA (max)
IO = 1A, VIN = VO(NOM)
9
50
9
50
mA (max)
Short Circuit Current
RL = 1Ω (4)
1.8
1.5
1.8
1.5
A (min)
Maximum Output Current
See (4)
1.8
1.5
1.8
1.5
A (min)
Ripple Rejection
Vripple = 1 Vrms,
ƒripple = 1 kHz, IO = 5 mA
58
50
58
50
dB (min)
Output Noise Voltage
10 Hz–100 kHz, IO = 5 mA
250
750
250
750
μV (max)
Long Term Stability
1000 Hours
2000
(1)
(2)
(3)
(4)
2000
ppm
VO(NOM) is the nominal (typical) regulator output voltage, −5V, −5.2V, −12V or −15V.
Typicals are at TJ = 25°C and represent the most likely parametric norm.
Limits are specified and 100% production tested.
The short circuit current is less than the maximum output current with the −12V and −15V versions due to internal foldback current
limiting. The −5V and −5.2V versions, tested with a lower input voltage, does not reach the foldback current limit and therefore conducts
a higher short circuit current level. If the LM2990 output is pulled above ground, the maximum allowed current sunk back into the
LM2990 is 1.5A.
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Electrical Characteristics
VIN = −5V + VO(NOM) (1), IO = 1A, CO = 47 μF, unless otherwise specified. Boldface limits apply over the entire operating
temperature range, −40°C ≤ TJ ≤ 125°C, all other limits apply for TJ = 25°C.
Parameter
Output Voltage (VO)
Conditions
LM2990-12
Typ (2)
5 mA ≤ IO ≤ 1A
LM2990-15
Limit (3)
Units
(Limit)
−11.76
−14.70
V (max)
−12.24
−15.30
V (min)
−11.40
−14.25
V (max)
−12.60
−15.75
V (min)
60
mV (max)
Limit (3)
−12
5 mA ≤ IO ≤ 1A
Typ (2)
−15
V
Line Regulation
IO = 5 mA,
VO(NOM) −1V > VIN > −26V
Load Regulation
50 mA ≤ IO ≤ 1A
3
50
3
50
mV (max)
Dropout Voltage
IO = 0.1A, ΔVO ≤ 100 mV
0.1
0.3
0.1
0.3
V (max)
IO = 1A, ΔVO ≤ 100 mV
0.6
1
0.6
1
V (max)
Quiescent Current (Iq)
6
60
6
IO ≤ 1A
1
5
1
5
mA (max)
IO = 1A, VIN = VO(NOM)
9
50
9
50
mA (max)
Short Circuit Current
RL = 1Ω (4)
1.2
0.9
1.0
0.75
A (min)
Maximum Output Current
See (4)
1.8
1.4
1.8
1.4
A (min)
Ripple Rejection
Vripple = 1 Vrms,
ƒripple = 1 kHz, IO = 5 mA
52
42
52
42
dB (min)
Output Noise Voltage
10 Hz–100 kHz, IO = 5 mA
500
1500
600
1800
μV (max)
Long Term Stability
1000 Hours
2000
(1)
(2)
(3)
(4)
4
2000
ppm
VO(NOM) is the nominal (typical) regulator output voltage, −5V, −5.2V, −12V or −15V.
Typicals are at TJ = 25°C and represent the most likely parametric norm.
Limits are specified and 100% production tested.
The short circuit current is less than the maximum output current with the −12V and −15V versions due to internal foldback current
limiting. The −5V and −5.2V versions, tested with a lower input voltage, does not reach the foldback current limit and therefore conducts
a higher short circuit current level. If the LM2990 output is pulled above ground, the maximum allowed current sunk back into the
LM2990 is 1.5A.
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Definition of Terms
Dropout Voltage: The input-output voltage differential at which the circuit ceases to regulate against further
reduction in input voltage. Measured when the output voltage has dropped 100 mV from the nominal value
obtained at (VO + 5V) input, dropout voltage is dependent upon load current and junction temperature.
Input Voltage: The DC voltage applied to the input terminals with respect to ground.
Input-Output Differential: The voltage difference between the unregulated input voltage and the regulated
output voltage for which the regulator will operate.
Line Regulation: The change in output voltage for a change in the input voltage. The measurement is made
under conditions of low dissipation or by using pulse techniques such that the average chip temperature is
not significantly affected.
Load Regulation: The change in output voltage for a change in load current at constant chip temperature.
Long Term Stability: Output voltage stability under accellerated life-test conditions after 1000 hours with
maximum rated voltage and junction temperature.
Output Noise Voltage: The rms AC voltage at the output, with constant load and no input ripple, measured over
a specified frequency range.
Quiescent Current: That part of the positive input current that does not contribute to the positive load current.
The regulator ground lead current.
Ripple Rejection: The ratio of the peak-to-peak input ripple voltage to the peak-to-peak output ripple voltage.
Temperature Stability of VO: The percentage change in output voltage for a thermal variation from room
temperature to either temperature extreme.
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Typical Performance Characteristics
6
Dropout Voltage
Normalized Output Voltage
Figure 6.
Figure 7.
LM2990-5.0 and LM2990-5.2
Quiescent Current
LM2990-12
Quiescent Current
Figure 8.
Figure 9.
LM2990-15
Quiescent Current
LM2990-5 and LM2990-5.2
Low Voltage Behavior
Figure 10.
Figure 11.
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Typical Performance Characteristics (continued)
LM2990-5 and LM2990-5.2
Line Transient Response
LM2990-5 and LM2990-5.2
Load Transient Response
Figure 12.
Figure 13.
LM2990-12 and LM2990-15
Low Voltage Behavior
LM2990-12 and LM2990-15
Line Transient Response
Figure 14.
Figure 15.
LM2990-12 and LM2990-15
Load Transient Response
LM2990-5 and LM2990-5.2
Ripple Rejection
Figure 16.
Figure 17.
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Typical Performance Characteristics (continued)
LM2990-5 and LM2990-5.2
Output Impedance
Maximum Output Current
Figure 18.
Figure 19.
LM2990-12 and LM2990-15
Ripple Rejection
LM2990-12 and LM2990-15
Output Impedance
Figure 20.
Figure 21.
Maximum Output Current
Figure 22.
8
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Typical Performance Characteristics (continued)
(1)
Maximum Power
Dissipation (TO-220)
Maximum Power Dissipation
(TO-263) (1)
Figure 23.
Figure 24.
The maximum power dissipation is a function of TJmax, θJA, and TA. The maximum allowable power dissipation at any ambient
temperature is PD = (TJmax − TA)/θJA. If this dissipation is exceeded, the die temperature will rise above 125°C, and the LM2990 will
eventually go into thermal shutdown at a TJ of approximately 160°C. For the LM2990, the junction-to-ambient thermal resistance, is
53°C/W, 73°C/W for the DDPAK/TO-263, and the junction-to-case thermal resistance is 3°C. If the DD[AK/TO-263 package is used, the
thermal resistance can be reduced by increasing the P.C. board copper area thermally connected to the package. Using 0.5 square
inches of copper area, θJA is 50°C/W; with 1 square inch of copper area, θJA is 37°C/W; and with 1.6 or more square inches of copper
area, θJA is 32°C/W.
Typical Applications
Figure 25. Post Regulator for an Isolated Switching Power Supply
The LM2940 is a positive 1A low dropout regulator; refer to its datasheet for further information.
Figure 26. Fixed Current Sink
Figure 27. Adjustable Current Sink
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APPLICATION HINTS
EXTERNAL CAPACITORS
The LM2990 regulator requires an output capacitor to maintain stability. The capacitor must be at least 10 μF
aluminum electrolytic or 1 μF solid tantalum. The output capacitor's ESR must be less than 10Ω, or the zero
added to the regulator frequency response by the ESR could reduce the phase margin, creating oscillations
(refer to the graph on the right). An input capacitor, of at least 1 μF solid tantalum or 10 μF aluminum electrolytic,
is also needed if the regulator is situated more than 6″ from the input power supply filter.
FORCING THE OUTPUT POSITIVE
Due to an internal clamp circuit, the LM2990 can withstand positive voltages on its output. If the voltage source
pulling the output positive is DC, the current must be limited to 1.5A. A current over 1.5A fed back into the
LM2990 could damage the device. The LM2990 output can also withstand fast positive voltage transients up to
26V, without any current limiting of the source. However, if the transients have a duration of over 1 ms, the
output should be clamped with a Schottky diode to ground.
Figure 28. Output Capacitor ESR
10
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Equivalent Schematic
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REVISION HISTORY
Changes from Revision C (April 2013) to Revision D
•
12
Page
Changed layout of National Data Sheet to TI format .......................................................................................................... 11
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PACKAGE OPTION ADDENDUM
www.ti.com
1-Nov-2013
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
LM2990S-12
NRND
DDPAK/
TO-263
KTT
3
45
TBD
Call TI
Call TI
-40 to 125
LM2990S
-12 P+
LM2990S-12/NOPB
ACTIVE
DDPAK/
TO-263
KTT
3
45
Pb-Free (RoHS
Exempt)
CU SN
Level-3-245C-168 HR
-40 to 125
LM2990S
-12 P+
LM2990S-15
NRND
DDPAK/
TO-263
KTT
3
45
TBD
Call TI
Call TI
-40 to 125
LM2990S
-15 P+
LM2990S-15/NOPB
ACTIVE
DDPAK/
TO-263
KTT
3
45
Pb-Free (RoHS
Exempt)
CU SN
Level-3-245C-168 HR
-40 to 125
LM2990S
-15 P+
LM2990S-5.0
NRND
DDPAK/
TO-263
KTT
3
45
TBD
Call TI
Call TI
-40 to 125
LM2990S
-5.0 P+
LM2990S-5.0/NOPB
ACTIVE
DDPAK/
TO-263
KTT
3
45
Pb-Free (RoHS
Exempt)
CU SN
Level-3-245C-168 HR
-40 to 125
LM2990S
-5.0 P+
LM2990SX-12
NRND
DDPAK/
TO-263
KTT
3
500
TBD
Call TI
Call TI
-40 to 125
LM2990S
-12 P+
LM2990SX-12/NOPB
ACTIVE
DDPAK/
TO-263
KTT
3
500
Pb-Free (RoHS
Exempt)
CU SN
Level-3-245C-168 HR
-40 to 125
LM2990S
-12 P+
LM2990SX-15
NRND
DDPAK/
TO-263
KTT
3
500
TBD
Call TI
Call TI
-40 to 125
LM2990S
-15 P+
LM2990SX-15/NOPB
ACTIVE
DDPAK/
TO-263
KTT
3
500
Pb-Free (RoHS
Exempt)
CU SN
Level-3-245C-168 HR
-40 to 125
LM2990S
-15 P+
LM2990SX-5.0
NRND
DDPAK/
TO-263
KTT
3
500
TBD
Call TI
Call TI
-40 to 125
LM2990S
-5.0 P+
LM2990SX-5.0/NOPB
ACTIVE
DDPAK/
TO-263
KTT
3
500
Pb-Free (RoHS
Exempt)
CU SN
Level-3-245C-168 HR
-40 to 125
LM2990S
-5.0 P+
LM2990T-12
NRND
TO-220
NDE
3
45
TBD
Call TI
Call TI
-40 to 125
LM2990T
-12 P+
LM2990T-12/NOPB
ACTIVE
TO-220
NDE
3
45
Green (RoHS
& no Sb/Br)
CU SN
Level-1-NA-UNLIM
-40 to 125
LM2990T
-12 P+
LM2990T-15
NRND
TO-220
NDE
3
45
TBD
Call TI
Call TI
-40 to 125
LM2990T
-15 P+
LM2990T-15/NOPB
ACTIVE
TO-220
NDE
3
45
Green (RoHS
& no Sb/Br)
CU SN
Level-1-NA-UNLIM
-40 to 125
LM2990T
-15 P+
LM2990T-5.0
NRND
TO-220
NDE
3
45
TBD
Call TI
Call TI
-40 to 125
LM2990T
-5.0 P+
Addendum-Page 1
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PACKAGE OPTION ADDENDUM
www.ti.com
1-Nov-2013
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
LM2990T-5.0/NOPB
ACTIVE
TO-220
NDE
3
45
Pb-Free (RoHS
Exempt)
CU SN
Level-1-NA-UNLIM
-40 to 125
LM2990T
-5.0 P+
LM2990T-5.2
NRND
TO-220
NDE
3
45
TBD
Call TI
Call TI
-40 to 125
LM2990T
-5.2 P+
LM2990T-5.2/NOPB
ACTIVE
TO-220
NDE
3
45
Green (RoHS
& no Sb/Br)
CU SN
Level-1-NA-UNLIM
-40 to 125
LM2990T
-5.2 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.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device 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 Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
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.
Addendum-Page 2
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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 3
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Apr-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
LM2990SX-12
DDPAK/
TO-263
KTT
3
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
LM2990SX-12/NOPB
DDPAK/
TO-263
KTT
3
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
LM2990SX-15
DDPAK/
TO-263
KTT
3
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
LM2990SX-15/NOPB
DDPAK/
TO-263
KTT
3
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
LM2990SX-5.0
DDPAK/
TO-263
KTT
3
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
LM2990SX-5.0/NOPB
DDPAK/
TO-263
KTT
3
500
330.0
24.4
10.75
14.85
5.0
16.0
24.0
Q2
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Apr-2013
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
LM2990SX-12
DDPAK/TO-263
KTT
3
500
367.0
367.0
45.0
LM2990SX-12/NOPB
DDPAK/TO-263
KTT
3
500
367.0
367.0
45.0
LM2990SX-15
DDPAK/TO-263
KTT
3
500
367.0
367.0
45.0
LM2990SX-15/NOPB
DDPAK/TO-263
KTT
3
500
367.0
367.0
45.0
LM2990SX-5.0
DDPAK/TO-263
KTT
3
500
367.0
367.0
45.0
LM2990SX-5.0/NOPB
DDPAK/TO-263
KTT
3
500
367.0
367.0
45.0
Pack Materials-Page 2
MECHANICAL DATA
NDE0003B
www.ti.com
MECHANICAL DATA
KTT0003B
TS3B (Rev F)
BOTTOM SIDE OF PACKAGE
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