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| LM123/LM223 LM323 THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS s s s s s OUTPUT CURRENT: 3A INTERNAL CURRENT AND THERMAL LIMITING TYPICAL OUTPUT IMPEDANCE: 0.01 MINIMUM INPUT VOLTAGE: 7.5V POWER DISSIPATION: 30W 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 shut-down 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 SCHEMATIC DIAGRAM TO-220 TO-3 dissipation ensure that the LM123, LM223, LM323 will perform satisfactorily as a system element. February 2003 1/10 LM123-LM223-LM323 ABSOLUTE MAXIMUM RATINGS Symbol VI IO Ptot Tstg Toper Input Voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature Range LM123 LM223 LM323 Parameter Value 20 Internally Limited Internally Limited -65 to 150 -55 to 150 -25 to 125 0 to 125 C C Unit V Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. THERMAL DATA Symbol Rthj-case Rthj-amb Parameter Thermal Resistance Junction-case Max Thermal Resistance Junction-ambient Max TO-220 3 50 TO-3 2 35 Unit C/W C/W CONNECTION DIAGRAM (top view) TO-220 TO-3 ORDERING CODES TYPE LM123 LM223 LM323 TO-220 LM123K LM223K LM323K TO-3 TEMPERATURE RANGE -55C to 150C -25C to 150C 0C to 125C LM323T 2/10 LM123-LM223-LM323 ELECTRICAL CHARACTERISTICS OF LM123/LM223 (TJ = -55 to 150C for LM123, TJ = -25 to 150C for LM223 unless otherwise specified). Symbol VO VO KVI KVO IIB VNO IOS KVH Parameter Output Voltage Range (Note 2) Output Voltage Range (Note 2) Line Regulation (Note 3) Load Regulation (Note 3) Quiescent Current Output Noise Voltage Short Circuit Current Limit Long Term Stability Ta = 25C, Test Conditions VI = 7.5 V, IO = 0 Min. 4.7 4.6 5 25 12 40 3 4 4.5 5 35 mV Typ. 5 Max. 5.3 5.4 25 100 20 Unit V V mV mV mA Vrms A TJ = Tmin to Tmax VI = 7.5 to 15 V VI = 7.5 to 15 V P Pmax IO = 0 to 3 A TJ = 25C IO = 0 to 3 A VI = 7.5 V TJ = 25C VI = 7.5 to 15 V IO = 0 to 3 A Ta = 25C VI = 15 V VI = 7.5 V f = 10 Hz to 100 KHz TJ = 25C TJ = 25C 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 duty cycle 5%. ELECTRICAL CHARACTERISTICS OF LM323 (TJ = 0 to 150C, unless otherwise specified). Symbol VO VO KVI KVO IIB VNO IOS KVH Parameter Output Voltage Range (Note 2) Output Voltage Range (Note 2) Line Regulation (Note 3) Load Regulation (Note 3) Quiescent Current Output Noise Voltage Short Circuit Current Limit Long Term Stability Ta = 25C, Test Conditions VI = 7.5 V, IO = 0 Min. 4.8 4.75 5 25 12 40 3 4 4.5 5 35 mV Typ. 5 Max. 5.2 5.25 25 100 20 Unit V V mV mV mA Vrms A TJ = Tmin to Tmax VI = 7.5 to 15 V VI = 7.5 to 15 V P Pmax IO = 0 to 3 A TJ = 25C TJ = 25C IO = 0 to 3 A IO = 0 to 3 A VI = 7.5 V VI = 7.5 to 15 V Ta = 25C VI = 15 V VI = 7.5 V f = 10 Hz to 100 KHz TJ = 25C TJ = 25C 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 duty cycle 5%. 3/10 LM123-LM223-LM323 Figure 1 : Output Noise Voltage Figure 4 : Short Circuit Current Figure 2 : Output Impedance Figure 5 : Ripple Rejection Figure 3 : Peak Available Output Current Figure 6 : Dropout Voltage 4/10 LM123-LM223-LM323 Figure 7 : Line Transient Response Figure 9 : Quiescent Current Figure 8 : Output Voltage Figure 10 : Load Transient Response TYPICAL APPLICATION BASIC 3A REGULATOR C1 = Required if regulator is distant from filter capacitors. CL = Regulator is stable with no load capacitor into resistive loads. 5/10 LM123-LM223-LM323 TRIMING OUTPUT TO 5V 10A REGULATOR WITH COMPLETE OVERLOAD PROTECTION * Selected for 20 mA current from unregulated negative supply. ** Solid tantalum. A = LM101A, LM201A, LM301A. 6/10 LM123-LM223-LM323 ADJUSTABLE REGULATOR 0 - 10V/3A A1 = LM101A, LM201A, LM301A. CI = 2F optional - improves ripple rejection, noise and transient response. 7/10 LM123-LM223-LM323 TO-3 MECHANICAL DATA DIM. A B C D E G N P R U V 30.10 3.88 10.9 16.9 26.2 4.09 39.5 1.185 0.152 0.96 mm. MIN. TYP 11.85 1.05 1.10 1.70 8.7 20.0 0.429 0.665 1.031 0.161 1.555 0.037 MAX. MIN. inch TYP. 0.466 0.041 0.043 0.066 0.342 0.787 MAX. P G A D C U V O N R P003C/C 8/10 B E LM123-LM223-LM323 TO-220 MECHANICAL DATA DIM. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 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 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 mm. MIN. 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 0.620 0.260 0.154 0.151 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 P011C 9/10 LM123-LM223-LM323 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2003 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. (c) http://www.st.com 10/10 |
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