LM323K STMicroelectronics, LM323K Datasheet

IC REGULATOR POS 3A 5V TO-3

LM323K

Manufacturer Part Number
LM323K
Description
IC REGULATOR POS 3A 5V TO-3
Manufacturer
STMicroelectronics
Datasheet

Specifications of LM323K

Regulator Topology
Positive Fixed
Voltage - Output
5V
Voltage - Input
7.5 ~ 20 V
Number Of Regulators
1
Current - Output
3A
Operating Temperature
0°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-204, TO-3
Polarity
Positive
Number Of Outputs
1
Output Type
Fixed
Output Voltage
5 V
Output Current
3 A
Line Regulation
25 mV
Load Regulation
100 mV
Input Voltage Max
20 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
0 C
Maximum Power Dissipation
30000 mW
Mounting Style
Through Hole
Voltage Regulator Type
Linear
Topology
Standard
Regulator Output Type
Fixed
Polarity Type
Positive
Input Voltage (min)
7.5V
Input Voltage (max)
20V
Package Type
TO-3
Power Dissipation
30W
Operating Temp Range
0C to 125C
Operating Temperature Classification
Commercial
Pin Count
2 +Tab
Mounting
Through Hole
Quiescent Current (max)
20mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-2976-5

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Features
Description
The LM323 are three-terminal positive voltage
regulators with a preset 5 V output and a load
driving capability of 3 A. New circuit design and
processing techniques are used to provide the
high output current without sacrificing the
regulation characteristics of lower current devices.
The 3 A regulator is virtually blowout proof.
Current limiting, power limiting and thermal shut-
down provide the same high level of reliability
obtained with these techniques in the LM209, 1 A
regulator. An overall worst case specification for
the combined effects of input voltage, load
current, ambient temperature, and power
dissipation ensure that the LM323 will perform
satisfactorily as a system element.
Table 1.
February 2008
Output current: 3 A
Internal current and thermal limiting
Typical output impedance: 0.01 W
Minimum input voltage: 7.5 V
Power dissipation: 30 W
Device summary
LM323T
TO-220
Order codes
Three-terminal 3 A adjustable voltage regulators
LM323K
TO-3
Rev 4
TO-3
Temperature range
0°C to 125°C
TO-220
LM323
www.st.com
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Related parts for LM323K

LM323K Summary of contents

Page 1

... LM323 will perform satisfactorily as a system element. Table 1. Device summary Order codes TO-220 LM323T February 2008 TO-3 Temperature range TO-3 LM323K Rev 4 LM323 TO-220 0°C to 125°C 1/15 www.st.com 15 ...

Page 2

Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

Diagram Figure 1. Schematic diagram 3/15 ...

Page 4

Pin configuration Figure 2. Pin connections (tot view) TO-220 4/15 TO-3 ...

Page 5

Maximum ratings Table 2. Absolute maximum ratings Symbol V Input voltage I I Output current O P Power dissipation D T Storage temperature range STG T Operating junction temperature range OP Note: Absolute maximum ratings are those values beyond ...

Page 6

Electrical characteristics Table 4. Electrical characteristics (T Symbol Parameter (2) V Output voltage rang O (2) V Output voltage range O (3) K Line regulation VI K Load regulation (Note Quiescent current IB V Output noise ...

Page 7

Typical characteristics Figure 3. Output noise voltage Figure 5. Peak available output current Figure 7. Ripple rejection Figure 4. Output impedance Figure 6. Short circuit current Figure 8. Dropout voltage 7/15 ...

Page 8

Figure 9. Line transient response Figure 11. Quiescent current 8/15 Figure 10. Output voltage Figure 12. Load transient response ...

Page 9

Typical application Figure 13. Basic 3 A regulator C = Required if regulator is distant from filter capacitors Regulator is stable with no load capacitor into resistive loads. L Figure 14. Trimming output ...

Page 10

Figure 15 regulator with complete overload protection * Selected for 20 mA current from unregulated negative supply. ** Solid tantalum LM101A, LM201A, LM301A. Figure 16. Adjustable regulator ...

Page 11

Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...

Page 12

Dim. Min. A 4.40 C 1. 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2 13.0 L5 2.65 L6 15.25 L7 6.2 L9 3.5 DIA. 3.75 12/15 TO-220 mechanical data ...

Page 13

TO-3 mechanical data mm. Dim. Min. Typ. A 11.85 B 0.96 1. 10 30.10 Max. Min. 1.10 0.037 1.70 8.7 20.0 26.2 4.09 0.152 39 ...

Page 14

Revision history Table 5. Document revision history Date Revision 04-Nov-2005 3 12-Feb-2008 4 14/15 Changes Updated curves, no content change. Added: Table 1 on page 1. ...

Page 15

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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