LM123

L M123/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 LM123 LM223 LM323 Temperature Range -55 oC to 150 oC -25 oC to 150 oC 0 oC to 125 oC Package K • • • • 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 VI IO Ptot Toper Input Voltage Output Current Power Dissipation Operating Junction Temperature Range LM123 LM223 LM323 Tstg Storage Temperature Range Parameter Value 20 Internally Limited Internally Limited -55 to 150 -25 to 150 0 to 125 -65 to 150 o o Unit V C C THERMAL CHARACTERISTICS Symbol Parameter TO-3 TO-220 Rthj-amb Junction-ambient Thermal Resistance TO-3 TO-220 Typ. 2 3 35 50 o Max. Unit o Rthj-case Junction-case Thermal Resistance C/W C/W S CHEMATIC DIAGRAM Case TO-3 TO-220 VI 1 1 VO 2 2 GND Case 3 2/9 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 VO VO Parameter Output Voltage Range (Note 2) Tamb = 25 oC, VI = 7.5 V, I O = 0 Output Voltage Range (Note 2) Tmin ≤ Tj ≤ Tmax, P ≤ Pmax 7.5 V ≤ VI ≤ 15 V, 0 ≤ IO ≤ 3 A Line Regulation (Note 3) Tj = 25 oC, 7.5 V ≤ VI ≤ 15V Load Regulation (Note 3) Tj = 25 oC, VI = 7.5 V, 0 ≤ IO ≤ 3 A Quiescent Current 7.5 V ≤ VI ≤ 15 V, 0 ≤ IO ≤ 3 A Output Noise Voltage Tamb = 25 oC, 10 Hz ≤ f ≤ 100 KHz Short Circuit Current Limit (Tj = 25 oC) VI = 15 V VI = 7.5V Long Term Stability LM123/LM223 Min. 4.7 4.6 Typ. 5 Max. 5.3 5.4 Min. 4.8 4.75 LM323 Typ. 5 Max. 5.2 5.25 V V Unit K VI KVO IIB VNO IOS 5 25 12 40 25 100 20 5 25 12 40 25 100 20 mV mV mA µ Vrms 3 4 4.5 5 35 3 4 4.5 5 35 A A mV KVH 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 L M123-LM223-LM323 4/9 LM123-LM223-LM323 T YPICAL 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 = 2µ F optional - improves ripple rejection, noise and transient response. 6/9 LM123-LM223-LM323 TO-3 MECHANICAL DATA mm MIN. A B C D E G N P R U V 11.00 0.97 1.50 8.32 19.00 10.70 16.50 25.00 4.00 38.50 30.00 TYP. MAX. 13.10 1.15 1.65 8.92 20.00 11.10 17.20 26.00 4.09 39.30 30.30 MIN. 0.433 0.038 0.059 0.327 0.748 0.421 0.649 0.984 0.157 1.515 1.187 inch TYP. MAX. 0.516 0.045 0.065 0.351 0.787 0.437 0.677 1.023 0.161 1.547 1.193 DIM. P G A D C U V O N R B P003F 7/9 E LM123-LM223-LM323 TO-220 MECHANICAL DATA DIM. MIN. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.2 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.9 6.6 4.2 3.85 0.511 0.104 0.598 0.244 0.137 0.147 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.625 0.260 0.165 0.151 mm TYP. MAX. 4.60 1.32 2.72 MIN. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch TYP. MAX. 0.181 0.051 0.107 A C D1 L2 F1 D G1 E Dia. F2 F L5 L7 L6 L9 L4 G 8/9 H2 P011C 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