www.fairchildsemi.com MC78MXX (LM78MXX) (KA78MXX) 3-Terminal 0.5A Positive Voltage Regulators Description * * * * * * The MC78MXX (LM78MXX) (KA78MXX) series of threeterminal 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. Output Current up to 0.5A Output Voltages of 5, 6, 8, 10, 12, 15, 18, 20, 24V Thermal Overload Protection Short Circuit Protection Output Transistor SOA Protection Industrial and commercial temperature range TO-220 D-PAK 1. Input 2. GND 3. Output Rev. 1.0.0 (c)2000 Fairchild Semiconductor Corporation Fixed Voltage Regulator (Positive) Features MC78MXX (LM78MXX) (KA78MXX) Fixed Voltage Regulator (Positive) Internal Block Diagram 2 MC78MXX (LM78MXX) (KA78MXX) Absolute Maximum Ratings (Ta=+25C, Unless otherwise specified) Parameter Symbol Value Unit VI VI 35 40 V V Thermal Resistance Junction-Cases RJC 5 C/W Thermal Resistance Junction-Air RJA 65 C/W Operating Temperature Range KA78MXXI/RI KA78MXX/R TOPR -40~ + 125 0~ + 125 C C Storage Temperature Range TSTG -65~ + 150 C Input Voltage (for VO = 5V to 18V) (for VO = 24V) (Refer to the test circuits, T MIN TJ +125C, IO=350mA, VI=10V, unless otherwise specified, CI = 0.33mF, CO=0.1mF) Parameter Output Voltage Line Regulation Load Regulation Symbol VO VO VO Quiescent Current IQ Quiescent Current Change IQ Output Voltage Drift V/T Min. Typ. Max. Units TJ=+25C Conditions 4.8 5 5.2 V IO = 5 to 350mA VI= 7 to 20V 4.75 5 5.25 VI= 7 to 25V - - 100 VI = 8 to 25V - - 50 IO = 200mA TJ =+25C mV IO = 5mA to 0.5A, T J =+25C - - 100 IO = 5mA to 200mA, T J =+25 C - - 50 mV TJ=+25C - 4.0 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 8 to 25V - - 0.8 IO = 5mA TJ = 0 to +125C - - 0.5 - mV/C - 40 - mV/VO Output Noise Voltage VN f = 10Hz to 100KHz Ripple Rejection RR f = 120Hz, IO = 300mA VI = 8 to 18V 62 - - dB Dropout Voltage VD TJ =+25C, IO = 500mA - 2 - V Short Circuit Current ISC TJ=+25C, VI= 35V - 300 - mA Peak Current IPK TJ =+25C - 700 - mA NOTE: 1. TMIN<TJ<TMAX KA78MXX/Rl: T MIN= -40C, TMAX = +125C KA78MXX/R: T MIN= 0C, TMAX = +125C 2. 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 Fixed Voltage Regulator (Positive) KA78M05/I/R/RI Electrical Characteristics MC78MXX (LM78MXX) (KA78MXX) KA78M06/I/R/RI Electrical Characteristics (Refer to the test circuits, T MIN TJ +125C, IO=350mA, VI =11V, unless otherwise specified, CI = 0.33mF, CO=0.1mF)( Parameter Output Voltage Fixed Voltage Regulator (Positive) Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Voltage Drift Symbol VO VO VO IQ IQ V/T Conditions Min. Typ. Max. Units TJ=+25C 5.75 6 6.25 V IO = 5 to 350mA VI= 8 to 21V 5.7 6 6.3 VI= 8 to 25V - - 100 VI = 9 to 25V - - 50 IO = 5mA to 0.5A, TJ =+25C - - 120 IO = 5mA to 200mA, TJ =+25C - - 60 T J=+25C - 4.0 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 9 to 25V - - 0.8 IO = 5mA T J = 0 to +125C - - 0.5 - mV/C - 45 - mV/VO IO = 200mA T J =+25C mV mV Output Noise Voltage VN f = 10Hz to 100KHz Ripple Rejection RR f = 120Hz, I O = 300mA VI = 9 to 19V 59 - - dB Dropout Voltage VD T J =+25C, IO = 500mA - 2 - V Short Circuit Current ISC T J= +25C, VI= 35V - 300 - mA Peak Current IPK T J =+25C - 700 - mA NOTE: 1. TMIN: KA78MXX/RI: T MIN = -40C KA78MXX/R: T MIN = 0C 2. 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) (KA78MXX) KA78M08/I/R/RI ELECTRICAL CHARACTERISTICS (Refer to the test circuits, T MIN TJ +125C, IO=350mA, V I=14V, unless otherwise specified, CI =0.33mF, CO=0.1mF) Parameter Output Voltage Line Regulation Quiescent Current Quiescent Current Change VO VO VO IQ IQ Conditions Min. Typ. Max. Units TJ=+25 C 7.7 8 8.3 V IO = 5 to 350mA VI= 10.5 to 23V 7.6 8 8.4 VI= 10.5 to 25V - - 100 VI = 11 to 25V - - 50 IO = 5mA to 0.5A, TJ =+25C - - 160 IO = 5mA to 200mA, TJ =+25C - - 80 TJ=+25C - 4.0 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 10.5 to 25V - - 0.8 IO = 200mA TJ =+25C mV mV Output Voltage Drift RR IO = 5mA TJ = 0 to +125C - - 0.5 - mV/C Output Noise Voltage VN f = 10Hz to 100KHz - 52 - mV/VO Ripple Rejection RR f = 120Hz, IO = 300mA VI = 9 to 19V 56 - - dB Dropout Voltage VD TJ =+25C,IO = 500mA - 2 - V Short Circuit Current ISC TJ =+25C, VI= 35V - 300 - mA Peak Current IPK TJ =+25C - 700 - mA NOTE: 1. TMIN: KA78MXX/RI: T MIN = -40C KA78MXX/R: T MIN = 0C 2. 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 Fixed Voltage Regulator (Positive) Load Regulation Symbol MC78MXX (LM78MXX) (KA78MXX) KA78M10/I/R/RI Electrical Characteristics (Refer to the test circuits, T MIN TJ +125C, IO=350mA, VI=17V, unless otherwise specified, CI = 0.33mF, CO=0.1mF) Parameter Output Voltage Fixed Voltage Regulator (Positive) Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Voltage Drift Symbol VO VO VO IQ IQ V/T Conditions Min. Typ. Max. Units TJ= +25C 9.6 10 10.4 V IO = 5 to 350mA VI= 12.5 to 25V 9.5 10 10.5 VI= 12.5 to 25V - - 100 VI = 13 to 25V - - 50 IO = 5mA to 0.5A, TJ =+25C - - 200 IO = 5mA to 200mA, TJ =+25C - - 100 TJ=+25C - 4.1 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 12.5 to 25V - - 0.8 IO = 5mA TJ = 0 to +125C - - 0.5 - mV/C - 65 - mV/VO IO = 200mA TJ =+25C mV mV Output Noise Voltage VN f = 10Hz to 100KHz Ripple Rejection RR f = 120Hz, IO = 300mA VI = 13 to 23V 55 - - dB Dropout Voltage VD TJ =+25C, IO = 500mA - 2 - V Short Circuit Current ISC TJ= +25C, VI= 35V - 300 - mA Peak Current IPK TJ =+25C - 700 - mA NOTE: 1. TMIN: KA78MXX/RI: T MIN = -40C KA78MXX/R: T MIN = 0C 2. 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) (KA78MXX) KA78M12/I/R/RI Electrical Characteristics (Refer to the test circuits, T MIN TJ 125C, IO=350mA, VI =19V, unless otherwise specified, CI =0.33mF, CO =0.1mF) Parameter Output Voltage Symbol VO VO Load Regulation VO Quiescent Current Quiescent Current Change Output Voltage Drift IQ IQ V/T Min. Typ. Max. Units T J=+25C 11.5 12 12.5 V IO = 5 to 350mA VI= 14.5 to 27V 11.5 12 12.6 VI= 14.5 to 30V - - 100 VI = 16 to 30V - - 50 IO = 5mA to 0.5A, TJ =+25C - - 240 IO = 5mA to 200mA, TJ =+25C - - 120 T J=+25C - 4.1 IO = 5mA to 350mA - IO = 200mA VI = 14.5 to 30V - - 0.8 IO = 5mA T J = 0 to +125C - - 0.5 - mV/C - 75 - mV/VO - dB IO = 200mA T J =+25C mV mV 6 mA 0.5 mA Output Noise Voltage VN f = 10Hz to 100KHz Ripple Rejection RR f = 120Hz, IO = 300mA VI = 15 to 25V 55 Dropout Voltage VD T J =+25C, IO = 500mA - 2 - V Short Circuit Current ISC T J= +25C, VI= 35V - 300 - mA Peak Current IPK T J = +25C - 700 - mA NOTE: 1. TMIN: KA78MXX/RI: T MIN = -40C KA78MXX/R: T MIN = 0C 2. 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 Fixed Voltage Regulator (Positive) Line Regulation Conditions MC78MXX (LM78MXX) (KA78MXX) KA78M15/I/R/RI ELECTRICAL CHARACTERISTICS (Refer to the test circuits, T MIN TJ +125C, IO=350mA, VI =23V, unless otherwise specified, CI = 0.33mF, CO=0.1mF) Parameter Output Voltage Fixed Voltage Regulator (Positive) Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Voltage Drift Symbol VO VO VO IQ IQ V/T Conditions Min. Typ. Max. Units TJ=+25C 14.4 15 15.6 V IO = 5 to 350mA VI= 17.5 to 30V 14.25 15 15.75 VI= 17.5 to 30V - - 100 VI = 20 to 30V - - 50 IO = 5mA to 0.5A, T J =+25C - - 300 IO = 5mA to 200mA, TJ =+25C - - 150 TJ=+25C - 4.1 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 17.5 to 30V - - 0.8 IO = 5mA TJ = 0 to +125C - -1 - mV/C - 100 - mV/VO IO = 200mA TJ =+25C mV mV Output Noise Voltage VN f = 10Hz to 100KHz Ripple Rejection RR f = 120Hz, IO = 300mA VI = 18.5 to 28.5V 54 Dropout Voltage VD TJ =+25C, IO = 500mA - 2 - V Short Circuit Current ISC TJ= +25C, VI= 35V - 300 - mA Peak Current IPK TJ = + 25C - 700 - mA dB NOTE: 1. TMIN: KA78MXX/RI: T MIN = -40C KA78MXX/R: T MIN = 0C 2. Load and line regulation are specified at constant, junction temperature. Change in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. 8 MC78MXX (LM78MXX) (KA78MXX) KA78M18/I/R/RI Electrical Characteristics (Refer to the test circuits, T MIN TJ +125C, IO=350mA, VI =26V, unless otherwise specified, CI = 0.33mF, CO=0.1mF) Parameter Output Voltage Line Regulation Quiescent Current Quiescent Current Change Output Voltage Drift VO VO V IQ IQ V/T Conditions Min. Typ. Max. Units TJ=+25C 17.3 18 18.7 V IO = 5 to 350mA VI= 20.5 to 33V 17.1 18 18.9 IO = 200mA VI= 21 to 33V - - 100 mV TJ =+25C VI = 24 to 33V - - 50 IO = 5mA to 0.5A, TJ =+25C - - 360 IO = 5mA to 200mA, TJ =+25C - - 180 TJ =+25C - 4.2 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 21 to 33V - - 0.8 IO =5mA TJ =0 to 125C - -1.1 - mV/C 100 - V/VO - dB mV Output Noise Voltage VN f=10Hz to 100KHz Ripple Rejection RR f=120Hz, IO=300mA Dropout Voltage VD TJ =+25C, IO=500mA - 2 - V Short Circuit Current ISC TJ =+25C, VI=35V - 300 - mA Peak Current IPK TJ =+25C - 700 - mA 53 NOTE: 1. TMIN: KA78MXX/R: T MIN = -40C KA78MXX/R: T MIN = 0C 2. 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. 9 Fixed Voltage Regulator (Positive) Load Regulation Symbol MC78MXX (LM78MXX) (KA78MXX) KA78M20/I/R/RI Electrical Characteristics (Refer to the test circuits, T MIN TJ +125C, IO=350mA, V I =29V, unless otherwise specified, CI = 0.33mF, CO=0.1mF) Parameter Output Voltage Symbol VO Conditions TJ= +25C IO = 5 to 350mA VI= 23 to 35V Fixed Voltage Regulator (Positive) Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Voltage Drift VO VO IQ IQ V/T Min. Typ. Max. Units 19.2 20 20.8 V 19 20 21 IO = 200mA VI= 23 to 35V TJ =+25C VI = 24 to 35V - - 100 mV - - 50 IO = 5mA to 0.5A, TJ =+25C - - 400 IO = 5mA to 200mA, TJ =+25C - - 200 TJ=+25C - 4.2 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 23 to 35V - - 0.8 IO = 5mA TJ = 0 to +125C - -1.1 - mV/C - 110 - mV/VO mV Output Noise Voltage VN f = 10Hz to 100KHz Ripple Rejection RR f = 120Hz, IO = 300mA VI = 24 to 34V 53 - - dB Dropout Voltage VD TJ =+25C, IO = 500mA - 2 - V Short Circuit Current ISC TJ = +25C, VI= 35V - 300 - mA Peak Current IPK TJ = +25C - 700 - mA NOTE: 1. TMIN: KA78MXX/RI: T MIN = -40C KA78MXX/R: T MIN = 0C 2. 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. 10 MC78MXX (LM78MXX) (KA78MXX) KA78M24/I/R/RI Electrical Characteristics (Refer to the test circuits, T MIN TJ +125C, IO=350mA, VI=33V, unless otherwise specified, CI = 0.33mF, CO=0.1mF) Parameter Output Voltage Symbol VO Conditions TJ=+25C IO = 5 to 350mA VI= 27 to 38V Line Regulation Quiescent Current Quiescent Current Change Output Voltage Drift VO IQ IQ V/T Typ. Max. Units 23 24 25 V 22.8 24 25.2 IO = 200mA VI= 27 to 38V TJ =+25C VI = 28 to 38V - - 100 mV - - 50 IO = 5mA to 0.5A, TJ =+25C - - 480 IO = 5mA to 200mA, TJ =+25C - - 240 TJ=+25C - 4.2 6 mA IO = 5mA to 350mA - - 0.5 mA IO = 200mA VI = 27 to 38V - - 0.8 IO = 5mA TJ = 0 to +125C - - 1.2 - mV/C - 170 - mV/VO mV Output Noise Voltage VN f = 10Hz to 100KHz Ripple Rejection RR f = 120Hz, IO = 300mA VI = 28 to 38V 50 - - dB Dropout Voltage VD TJ =+25C, IO = 500mA - 2 - V Short Circuit Current ISC TJ= +25 C, VI= 35V - 300 - mA Peak Current IPK TJ =+25C - 700 - mA NOTE: 1. TMIN: KA78MXX/RI: T MIN = -40C KA78MXX/R: T MIN = 0C 2. 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. 11 Fixed Voltage Regulator (Positive) Load Regulation VO Min. MC78MXX (LM78MXX) (KA78MXX) Typical Applications Fixed Voltage Regulator (Positive) Figure 1. Fixed Output Regulator 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. Required if regulator is located an appreciable distance from power Supply filter Figure 3. Circuit for Increasing Output Voltage 12 MC78MXX (LM78MXX) (KA78MXX) Fixed Voltage Regulator (Positive) Figure 4. Adjustable Output Regulator (7 to 30V) Figure 5. 0.5 to 10V Regulator 13 MC78MXX (LM78MXX) (KA78MXX) Ordering Information Device Package MC78MXXCT (LM78XXCT) (KA78MXX) TO-220 KA78MXXI MC78MXXCDT (KA78MXXR) Fixed Voltage Regulator (Positive) KA78MXXRI 14 Operating Temperature 0 ~ + 125C -40 ~ +125C D-PAK 0 ~ + 125C -40 ~ + 125C MC78MXX (LM78MXX) (KA78MXX) Package Dimensions Fixed Voltage Regulator (Positive) 15 MC78MXX (LM78MXX) (KA78MXX) Fixed Voltage Regulator (Positive) Package Dimensions (Continued) 16 MC78MXX (LM78MXX) (KA78MXX) Fixed Voltage Regulator (Positive) 17 Fixed Voltage Regulator (Positive) MC78MXX (LM78MXX) (KA78MXX) 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. 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. www.fairchildsemi.com 1/3/00 0.0m 001 Stock#DSxxxxxxxx 1999 Fairchild Semiconductor Corporation