LM123/LM223 LM323 THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS .. .. . OUTPUT CURRENT : 3A INTERNAL CURRENT AND THERMAL LIMITING TYPICAL OUPUT IMPEDANCE : 0.01Ω MINIMUM INPUT VOLTAGE : 7.5V POWER DISSIPATION : 30W TO-3 DESCRIPTION The LM123, LM223, LM323 are three-terminal positive voltage regulators with a preset 5V output and a load driving capability of 3A. New circuit design and processing techniques are used to provide the high output current without sacrificing the regulation characteristics of lower current devices. The 3A regulator is virtually blowout proof. Current limiting, power limiting and thermal shutdown provide the same high level of reliability obtained with these techniques in the LM209, 1A regulator. An overall worst case specification for the combined effects of input voltage, load current, ambient temperature, and power dissipation ensure that the LM123, LM223, LM323 will perform satisfactorily as a system element. TO-220 ORDER CODES Part Number Temperature Range K Package LM123 -55 oC to 150 oC • LM223 -25 oC to 150 oC • LM323 0 oC to 125 oC • T • PIN CONNECTION TO-3 (bottom view) TO-220 (front view) 1 - Input 2 - Output 3 - GND 1 - Input 2 - Output March 1993 1/9 LM123-LM223-LM323 ABSOLUTE MAXIMUM RATING Symbol Parameter VI Input Voltage IO Output Current Ptot Power Dissipation Toper Operating Junction Temperature Range Unit 20 V Internally Limited Internally Limited LM123 -55 to 150 LM223 -25 to 150 LM323 Tstg Value o C o C 0 to 125 Storage Temperature Range -65 to 150 THERMAL CHARACTERISTICS Symbol Parameter Typ. Rthj-case Junction-case Thermal Resistance TO-3 Rthj-amb Junction-ambient Thermal Resistance 2 C/W 3 TO-3 35 TO-220 50 Case VI VO GND TO-3 1 2 Case TO-220 1 2 3 Unit o TO-220 SCHEMATIC DIAGRAM 2/9 Max. o C/W LM123-LM223-LM323 ELECTRICAL CHARACTERISICS o o LM123: -55 C < Tj < 150 C o LM223: -25 C < Tj < 150 o C LM323: 0 o C < Tj < 150 o C Symbol Parameter LM123/LM223 LM323 Unit Min. Typ. Max. Min. Typ. Max. VO Output Voltage Range (Note 2) Tamb = 25 oC, VI = 7.5 V, I O = 0 4.7 5 5.3 4.8 5 5.2 V VO Output Voltage Range (Note 2) Tmin ≤ Tj ≤ Tmax, P ≤ Pmax 7.5 V ≤ VI ≤ 15 V, 0 ≤ IO ≤ 3 A 4.6 5.4 4.75 5.25 V K VI Line Regulation (Note 3) Tj = 25 oC, 7.5 V ≤ VI ≤ 15V 5 25 5 25 mV KVO Load Regulation (Note 3) Tj = 25 oC, VI = 7.5 V, 0 ≤ IO ≤ 3 A 25 100 25 100 mV Quiescent Current 7.5 V ≤ VI ≤ 15 V, 0 ≤ IO ≤ 3 A 12 20 12 20 mA VNO Output Noise Voltage Tamb = 25 oC, 10 Hz ≤ f ≤ 100 KHz 40 IOS Short Circuit Current Limit (Tj = 25 oC) VI = 15 V VI = 7.5V IIB KVH Long Term Stability 3 4 µVrms 40 4.5 5 35 3 4 4.5 5 A A 35 mV Notes : 1. Although power dissipation is internally limited, specifications apply only for P ≤ 30W. 2. Selected devices with tightened tolerance output voltage available. 3. Load and line regulation are specified at constant junction temperature. Pulse testing is required with a pulse width ≤ 1ms and a duty cycle ≤ 5%. 3/9 LM123-LM223-LM323 4/9 LM123-LM223-LM323 TYPICAL APPLICATIONS BASIC 3A REGULATOR TRIMING OUTPUT TO 5V C1 = Required if regul ator is distant from f il ter capacitors. CL = Regulator is stable wit h no load capacitor int o resistive loads. 5/9 LM123-LM223-LM323 10A REGULATOR WITH COMPLETE OVERLOAD PROTECTION * Selected for 20mA current from unregulated negative supply. * * Solid tantalum. A = LM101A, LM201A, LM301A. ADJUSTABLE REGULATOR 0 – 10V/3A A1 = LM 101 A, LM 201 A, LM 301 A. C1 = 2µF optional - improves ripple rejection, noise and transient response. 6/9 LM123-LM223-LM323 TO-3 MECHANICAL DATA mm DIM. MIN. inch TYP. MAX. MIN. TYP. MAX. A 11.00 13.10 0.433 0.516 B 0.97 1.15 0.038 0.045 C 1.50 1.65 0.059 0.065 D 8.32 8.92 0.327 0.351 E 19.00 20.00 0.748 0.787 G 10.70 11.10 0.421 0.437 N 16.50 17.20 0.649 0.677 P 25.00 26.00 0.984 1.023 R 4.00 4.09 0.157 0.161 U 38.50 39.30 1.515 1.547 V 30.00 30.30 1.187 1.193 A P C O N B V E G U D R P003F 7/9 LM123-LM223-LM323 TO-220 MECHANICAL DATA mm DIM. MIN. inch MAX. MIN. A 4.40 TYP. 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 D1 TYP. MAX. 0.107 1.27 0.050 E 0.49 0.70 0.019 0.027 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G 4.95 5.15 0.194 0.203 G1 2.4 2.7 0.094 0.106 H2 10.0 10.40 0.393 L2 0.409 16.4 0.645 13.0 14.0 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.2 15.9 0.598 0.625 L7 6.2 6.6 0.244 0.260 L9 3.5 4.2 0.137 0.165 DIA. 3.75 3.85 0.147 0.151 D1 C D A E L4 H2 G G1 F1 L2 F2 F Dia. L5 L9 L7 L6 L4 P011C 8/9 LM123-LM223-LM323 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 9/9