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| www.fairchildsemi.com MC78MXX/LM78MXX 3-Terminal 0.5A Positive Voltage Regulator Features * * * * * Output Current up to 0.5A Output Voltages of 5, 6, 8, 12, 15, 18, 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area (SOA)Protection Description The MC78MXX/LM78MXX series of three-terminal positive regulators are available in the TO-220/D-PAK package with several fixed output voltages making it useful in a wide range of applications. TO-220 GND 1 D-PAK GND 1 1. Input 2. GND 3. Output Internal Block Digram INPUT 1 SERIES PASS ELEMENT OUTPUT 3 CURRENT GENERATOR SOA PROTECTION R1 STARTING CIRCUIT REFERENCE VOLTAGE ERROR AMPLIFIER R2 THERMAL PROTECTION GND 2 Rev. 1.0.5 (c)2002 Fairchild Semiconductor Corporation MC78MXX/LM78MXX Absolute Maximum Ratings Parameter Input Voltage (for VO = 5V to 18V) (for VO = 24V) Thermal Resistance Junction-Case (Note1) TO-220 (Tc = +25C) Thermal Resistance Junction-Air (Note1, 2) TO-220 (Ta = +25C) D-PAK (Ta = +25C) Operating Junction Temperature Range Storage Temperature Range Note: 1. Thermal resistance test board Size: 76.2mm * 114.3mm * 1.6mm(1S0P) JEDEC standard: JESD51-3, JESD51-7 2. Assume no ambient airflow Symbol VI VI RJC RJA TOPR TSTG Value 35 40 2.5 66 92 0 ~ +150 -65 ~ +150 Unit V V C/W C/W C C Electrical Characteristics (MC78M05/LM78M05) (Refer to the test circuits, 0 < TJ < +125C, IO=350mA, VI=10V, unless otherwise specified, CI = 0.33F, CO=0.1F) Parameter Output Voltage Symbol VO Conditions TJ = +25C IO = 5mA to 350mA VI = 7V to 20V IO = 200mA TJ =+25C VI = 7V to 25V VI = 8V to 25V Min. 4.8 4.75 Typ. 5 5 4.0 -0.5 40 80 2 300 700 Max. 5.2 5.25 100 50 100 50 6.0 0.5 0.8 mA V Unit Line Regulation (Note3) Load Regulation (Note3) Quiescent Current Quiescent Current Change VO VO IQ IQ V/T VN RR VD ISC IPK mV mV mA IO = 5mA to 0.5A, TJ =+25C IO = 5mA to 200mA, TJ =+25 C TJ =+25C IO = 5mA to 350mA IO = 200mA VI = 8V to 25V IO = 5mA TJ = 0 to +125C f = 10Hz to 100kHz f = 120Hz, IO = 300mA VI = 8V to 18V, TJ =+25 C TJ =+25C, IO = 500mA TJ =+25C, VI = 35V TJ =+25C Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current mV/C V/Vo dB V mA mA Note: 3. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used. 2 MC78MXX/LM78MXX Electrical Characteristics (MC78M06) (Continued) (Refer to the test circuits, 0 < TJ < +125C, IO=350mA, VI =11V, unless otherwise specified, CI=0.33F, CO=0.1F) Parameter Output Voltage Symbol VO Conditions TJ = +25C IO = 5mA to 350mA VI = 8V to 21V IO = 200mA TJ = +25C VI = 8V to 25V VI = 9V to 25V Min. 5.75 5.7 Typ. 6 6 4.0 -0.5 45 80 2 300 700 Max. 6.25 6.3 100 50 120 60 6.0 0.5 0.8 mA V Unit Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change VO VO IQ IQ V/T VN RR VD ISC IPK mV mV mA IO = 5mA to 0.5A, TJ = +25C IO = 5mA to 200mA, TJ = +25C TJ = +25C IO = 5mA to 350mA IO = 200mA VI = 9V to 25V IO = 5mA TJ = 0 to +125C f = 10Hz to 100kHz f = 120Hz, IO = 300mA VI = 9V to 19V, TJ =+25 C TJ =+25C, IO = 500mA TJ = +25C, VI= 35V TJ =+25C Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current mV/C V/Vo dB V mA mA Note: 1. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used. 3 MC78MXX/LM78MXX Electrical Characteristics (MC78M08) (Continued) (Refer to the test circuits, 0 < TJ < +125C, IO=350mA, VI=14V, unless otherwise specified, CI = 0.33F, CO=0.1F) Parameter Output Voltage Symbol TJ =+25C VO IO = 5mA to 350mA VI = 10.5V to 23V IO = 200mA TJ =+25C VI = 10.5V to 25V VI = 11V to 25V Conditions Min. 7.7 7.6 Typ. 8 8 4.0 -0.5 52 80 2 300 700 Max. 8.3 8.4 100 50 160 80 6.0 0.5 0.8 mA V Unit Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change VO VO IQ IQ mV mV mA IO = 5mA to 0.5A, TJ =+25C IO = 5mA to 200mA, TJ =+25C TJ = +25C IO = 5mA to 350mA IO = 200mA VI = 10.5V to 25V IO = 5mA TJ = 0 to +125C f = 10Hz to 100kHz f = 120Hz, IO = 300mA VI = 11.5V to 21.5V, TJ =+25 C TJ = +25C, IO = 500mA TJ = +25C, VI = 35V TJ = +25C Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current RR VN RR VD ISC IPK mV/C V/Vo dB V mA mA Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 4 MC78MXX/LM78MXX Electrical Characteristics (MC78M12) (Continued) (Refer to the test circuits, 0 < TJ < +125C, IO=350mA, VI=19V, unless otherwise specified, CI =0.33F, CO=0.1F) Parameter Output Voltage Symbol TJ = +25C VO IO = 5mA to 350mA VI = 14.5V to 27V IO = 200mA TJ = +25C VI = 14.5V to 30V VI = 16V to 30V Conditions Min. 11.5 11.4 Typ. 12 12 4.1 -0.5 75 80 2 300 700 Max. 12.5 12.6 100 50 240 120 6.0 0.5 0.8 mA V Unit Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change VO VO IQ IQ V/T VN RR VD ISC IPK mV mV mA IO = 5mA to 0.5A, TJ = +25C IO = 5mA to 200mA, TJ = +25C TJ =+25C IO = 5mA to 350mA IO = 200mA VI = 14.5V to 30V IO = 5mA TJ = 0 to +125C f = 10Hz to 100kHz f = 120Hz, IO = 300mA VI = 15V to 25V, TJ =+25 C TJ =+25C, IO = 500mA TJ = +25C, VI = 35V TJ = +25C Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current mV/C V/Vo dB V mA mA Note: 1. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used. 5 MC78MXX/LM78MXX Electrical Characteristics (MC78M15) (Continued) (Refer to the test circuits, 0 < TJ < +125C, IO=350mA, VI=23V, unless otherwise specified, CI =0.33F, CO=0.1F) Parameter Output Voltage Symbol VO Conditions TJ = +25C IO = 5mA to 350mA VI = 17.5V to 30V IO = 200mA TJ =+25C VI = 17.5V to 30V VI = 20V to 30V Min. 14.4 14.25 Typ. 15 15 4.1 -1 100 70 2 300 700 Max. 15.6 15.75 100 50 300 150 6.0 0.5 0.8 mA V Unit Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change VO VO IQ IQ V/T VN RR VD ISC IPK mV mV mA IO = 5mA to 0.5A, TJ =+25C IO = 5mA to 200mA, TJ =+25C TJ = +25C IO = 5mA to 350mA IO = 200mA VI = 17.5V to 30V IO = 5mA TJ = 0 to +125C f = 10Hz to 100kHz f = 120Hz, IO = 300mA VI = 18.5V to 28.5V, TJ =+25 C TJ =+25C, IO = 500mA TJ = +25C, VI = 35V TJ = +25C Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current mV/C V/Vo dB V mA mA Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 6 MC78MXX/LM78MXX Electrical Characteristics (MC78M18) (Continued) (Refer to the test circuits, 0 < TJ < +125C, IO=350mA, VI=26V, unless otherwise specified, CI =0.33F, CO=0.1F) Parameter Output Voltage Symbol TJ = +25C VO IO = 5mA to 350mA VI = 20.5V to 33V IO = 200mA TJ = +25C VI = 21V to 33V VI = 24V to 33V Conditions Min. Typ. 17.3 17.1 18 18 4.2 -1.1 100 70 2 300 700 Max. 18.7 18.9 100 50 360 180 6.0 0.5 0.8 mA mV/C V/Vo dB V mA mA V Unit Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current VO V IQ IQ V/T VN RR VD ISC IPK mV mV mA IO = 5mA to 0.5A, TJ = +25C IO = 5mA to 200mA, TJ = +25C TJ = +25C IO = 5mA to 350mA IO = 200mA VI = 21V to 33V IO = 5mATJ = 0 to 125C f = 10Hz to 100kHz f = 120Hz, IO= 300mA , VI = 22V to 32V TJ =+25 C TJ = +25C, IO = 500mA TJ = +25C, VI = 35V TJ = +25C Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 7 MC78MXX/LM78MXX Electrical Characteristics (MC78M24) (Continued) (Refer to the test circuits, 0 < TJ < +125C, IO=350mA, VI=33V, unless otherwise specified, CI =0.33F, CO=0.1F) Parameter Output Voltage Symbol VO Conditions TJ =+25C IO = 5mA to 350mA VI = 27V to 38V IO = 200mA VI = 27V to 38V TJ =+25C VI = 28V to 38V IO = 5mA to 0.5A, TJ =+25C IO = 5mA to 200mA, TJ =+25C TJ = +25C IO = 5mA to 350mA Quiescent Current Change IQ V/T VN RR VD ISC IPK IO = 200mA VI = 27V to 38V IO = 5mA TJ = 0 to +125C f = 10Hz to 100kHz f = 120Hz, IO = 300mA VI = 28V to 38V, TJ =+25 C TJ = +25C, IO = 500mA TJ = +25C, VI = 35V TJ = +25C Min. 23 22.8 Typ. 24 24 4.2 -1.2 170 70 2 300 700 Max. 25 25.2 100 50 480 240 6.0 0.5 0.8 mA V Unit Line Regulation (Note1) Load Regulation (Note1) Quiescent Current VO VO IQ mV mV mA Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Short Circuit Current Peak Current mV/C V/Vo dB V mA mA Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 8 MC78MXX/LM78MXX Typical Applications VI CI 1 MC78MXX LM78MXX 2 3 VO CO 0.1F 0.3F Figure 1. Fixed Output Regulator VI CI 1 MC78MXX LM78MXX 2 3 CO 0.1F 0.33F IO VXX IO Vxx IO = R1 +IO Figure 2. Constant Current Regulator Notes: 1. To specify an output voltage, substitute voltage value for "XX" 2. Although no output capacitor is needed for stability, it does improve transient response. 3. CI is required if regulator is located an appreciable distance from power Supply filter R1 VI CI 1 MC78MXX LM78MXX 2 3 VO VXX R1 CO 0.1F 0.33F IO IR1 5IO VO = VXX (1+R2/R1) +IOR2 R2 Figure 3. Circuit for Increasing Output Voltage 9 MC78MXX/LM78MXX VI CI 1 MC78M05 LM78M05 2 3 0.1F VO CO 7 2 3 10k 0.33F 6 LM741 4 Figure 4. Adjustable Output Regulator (7 to 30V) 13V < VI < 25V VI C1 1 MC78M05 LM78M05 2 3 R4 910 R5 9.1k VO VXX 0.33F 6 -7 < -VI < 17V 7 _2 LM741 + 3 R3 4 R1 10k C2 0.1F VO = Vxx R4 R1 Figure 5. 0.5 to 10V Regulator 10 MC78MXX/LM78MXX Mechanical Dimensions Package Dimensions in millimeters TO-220 9.90 0.20 1.30 0.10 2.80 0.10 (8.70) o3.60 0.10 (1.70) 4.50 0.20 1.30 -0.05 +0.10 9.20 0.20 (1.46) 13.08 0.20 (1.00) (3.00) 15.90 0.20 1.27 0.10 1.52 0.10 0.80 0.10 2.54TYP [2.54 0.20] 2.54TYP [2.54 0.20] 10.08 0.30 18.95MAX. (3.70) (45 ) 0.50 -0.05 +0.10 2.40 0.20 10.00 0.20 11 MC78MXX/LM78MXX Mechanical Dimensions (Continued) Package Dimensions in millimeters D-PAK 6.60 0.20 5.34 0.30 (0.50) (4.34) (0.50) 0.70 0.20 2.30 0.10 0.50 0.10 0.60 0.20 6.10 0.20 2.70 0.20 9.50 0.30 0.91 0.10 0.80 0.20 MAX0.96 2.30TYP [2.300.20] 0.76 0.10 2.30TYP [2.300.20] 0.89 0.10 0.50 0.10 1.02 0.20 2.30 0.20 (0.70) (0.90) (0.10) (3.05) 6.10 0.20 9.50 0.30 2.70 0.20 (2XR0.25) 0.76 0.10 12 (1.00) 6.60 0.20 (5.34) (5.04) (1.50) MIN0.55 MC78MXX/LM78MXX Ordering Information Product Number LM78M05CT Product Number MC78M05CT MC78M06CT MC78M08CT MC78M12CT MC78M15CT MC78M18CT MC78M24CT MC78M05CDT MC78M06CDT MC78M08CDT MC78M12CDT D-PAK 0 ~ +125C TO-220 Package TO-220 Package Operating Temperature 0 ~ +125C Operating Temperature 13 MC78MXX/LM78MXX DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 11/12/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. |
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