KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Features Description ■ Output Current up to 1A The KA78XXE/KA78XXAE series of three-terminal positive regulator are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. ■ Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V ■ Thermal Overload Protection ■ Short Circuit Protection ■ Output Transistor Safe Operating Area Protection Ordering Information Part Number Output Voltage Tolerance Package Operating Temperature KA7805E / KA7806E ±4% TO-220 0 to +125°C KA7808E / KA7809E KA7810E KA7812E / KA7815E KA7818E / KA7824E KA7805AE / KA7806AE ±2% KA7808AE / KA7809AE KA7810AE KA7812AE/KA7815AE KA7818AE/KA7824AE KA7805ER / KA7806ER ±4% D-PAK KA7808ER / KA7809ER KA7812ER ©2009 Fairchild Semiconductor Corporation KA78XXE/KA78XXAE Rev. 1.0.2 1 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulat Sep 2009 Input Series Pass Element 1 Current Generator Starting Circuit Output 3 SOA Protection Reference Voltage Error Amplifier Thermal Protection GND 2 Figure 1. Pin Assignment TO-220 D-PAK GND GND 1. Input 2. GND 3. Output 1 1 Figure 2. Absolute Maximum Ratings Symbol VI Parameter Input Voltage Value Unit VO = 5V to 18V 35 V VO = 24V 40 RθJC Thermal Resistance Junction-Cases (TO-220) 5 °C/W RθJA Thermal Resistance Junction-Air (TO-220) 65 °C/W TOPR Operating Temperature Range (KA78XXE/AE/ER) 0 to +125 °C TSTG Storage Temperature Range -65 to +150 °C 2 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Block Diagram Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 10V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7805E/ER Symbol VO Regline Regload IQ ∆I Q ∆VO/∆T VN RR VDrop Parameter Output Voltage Line Regulation(1) Load Conditions Typ. Max. TJ = +25°C 4.8 5.0 5.2 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 7V to 20V 4.75 5.0 5.25 VO = 7V to 25V – 4.0 100 VI = 8V to 12V – 1.6 50 IO = 5.0mA to1.5A – 9 100 IO = 250mA to 750mA – 4 50 TJ = +25°C Regulation(1) Min. TJ = +25°C Unit V mV mV Quiescent Current TJ = +25°C – 5.0 8.0 mA Quiescent Current Change IO = 5mA to 1.0A – 0.03 0.5 mA VI = 7V to 25V – 0.3 1.3 Output Voltage Drift IO = 5mA – -0.8 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 42 – µV/VO f = 120Hz, VO = 8V to 18V 62 73 – dB IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 15 – mΩ VI = 35V, TA = +25°C – 230 – mA TJ = +25°C – 2.2 – A (2) Ripple Rejection(2) Dropout Voltage Resistance(2) rO Output ISC Short Circuit Current IPK Current(2) Peak Notes: 1. Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used. 2. These parameters, although guaranteed, are not 100% tested in production. 3 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7805E/KA7805ER) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 11V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7806E/ER Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Output Voltage Line Regulation(3) Load Regulation(3) Conditions Min. Typ. Max. TJ = +25°C 5.75 6.0 6.25 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 8.0V to 21V 5.7 6.0 6.3 VI = 8V to 25V – 5 120 VI = 9V to 13V – 1.5 60 IO = 5mA to 1.5A – 9 120 IO = 250mA to 750mA – 3 60 TJ = +25°C TJ = +25°C Unit V mV mV Quiescent Current TJ = +25°C – 5.0 8.0 mA Quiescent Current Change IO = 5mA to 1A – – 0.5 mA VI = 8V to 25V – – 1.3 IO = 5mA – -0.8 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 45 – µV/Vo Output Voltage Drift(4) Output Noise Voltage (4) RR Ripple Rejection f = 120Hz VI = 9V to 19V 59 75 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 19 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(4) rO Output ISC Short Circuit Current IPK Current(4) Peak Notes: 3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 4. These parameters, although guaranteed, are not 100% tested in production. 4 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7806E/KA7806ER) (Continued) KA7808E/ER Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Min. Typ. Max. Unit TJ = +25°C 7.7 8.0 8.3 V 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 10.5V to 23V 7.6 8.0 8.4 VI = 10.5V to 25V – 5.0 160 VI = 11.5V to 17V – 2.0 80 IO = 5.0mA to 1.5A – 10 160 IO = 250mA to 750mA – 5.0 80 – 5.0 8.0 mA Current IO = 5mA to 1.0A – 0.05 0.5 mA VI = 10.5A to 25V – 0.5 1.0 IO = 5mA – -0.8 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 52 – µV/Vo Output Voltage Line Regulation(5) TJ = +25°C (5) TJ = +25°C Load Regulation Quiescent Current Quiescent Change Output Voltage Conditions TJ = +25°C Drift(6) Output Noise Voltage (6) mV mV RR Ripple Rejection f = 120Hz, VI = 11.5V to 21.5V 56 73 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 17 – mΩ VI = 35V, TA = +25°C – 230 – mA TJ = +25°C – 2.2 – A Resistance(6) rO Output ISC Short Circuit Current IPK Current(6) Peak Notes: 5. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 6. These parameters, although guaranteed, are not 100% tested in production. 5 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7808E/KA7808ER) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 14V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7809E/ER Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Output Voltage Line Regulation(7) (7) Load Regulation Conditions Min. Typ. Max. Unit TJ = +25°C 8.65 9 9.35 V 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 11.5V to 24V 8.6 9 9.4 VI = 11.5V to 25V – 6 180 VI = 12V to 17V – 2 90 IO = 5mA to 1.5A – 12 180 IO = 250mA to 750mA – 4 90 TJ = +25°C TJ = +25°C mV mV Quiescent Current TJ = +25°C – 5.0 8.0 mA Quiescent Current Change IO = 5mA to 1.0A – – 0.5 mA VI = 11.5V to 26V – – 1.3 IO = 5mA – -1 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 58 – µV/Vo Output Voltage Drift(8) Output Noise Voltage (8) RR Ripple Rejection f = 120Hz VI = 13V to 23V 56 71 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 17 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(8) rO Output ISC Short Circuit Current IPK Current(8) Peak Notes: 7. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 8. These parameters, although guaranteed, are not 100% tested in production. 6 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7809E/KA7809ER) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 15V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7810E Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Output Voltage Line Regulation(9) (9) Load Regulation Conditions Min. Typ. Max. Unit TJ = +25°C 9.6 10.0 10.4 V 5mA ≤ IO ≤ 1A, PO ≤ 15W VI = 12.5V to 25V 9.5 10.0 10.5 VI = 12.5V to 25V – 10.0 200 VI = 13V to 25V – 3.0 100 IO = 5mA to 1.5A – 12.0 200 IO = 250mA to 750mA – 4.0 400 TJ = +25°C TJ = +25°C mV mV Quiescent Current TJ = +25°C – 5.1 8.0 mA Quiescent Current Change IO = 5mA to 1A – – 0.5 mA VI = 12.5V to 29V – – 1.0 IO = 5mA – -1.0 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 58.0 – µV/Vo 56.0 71.0 – dB Output Voltage Drift(10) Output Noise Voltage (10) RR Ripple Rejection f = 120Hz VO = 13V to 23V VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V f = 1kHz – 17.0 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(10) rO Output ISC Short Circuit Current IPK Peak Current(10) Notes: 9. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 10. These parameters, although guaranteed, are not 100% tested in production. 7 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7810E) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 16V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7812E/ER Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Output Voltage Line Regulation(11) (11) Load Regulation Conditions Min. Typ. Max. Unit TJ = +25°C 11.5 12 12.5 V 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 14.5V to 27V 11.4 12 12.6 VI = 14.5V to 30V – 10 240 VI = 16V to 22V – 3.0 120 IO = 5mA to 1.5A – 11 240 IO = 250mA to 750mA – 5.0 120 TJ = +25°C TJ = +25°C mV mV Quiescent Current TJ = +25°C – 5.1 8.0 mA Quiescent Current Change IO = 5mA to 1.0A – 0.1 0.5 mA VI = 14.5V to 30V – 0.5 1.0 IO = 5mA – -1 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 76 – µV/Vo Output Voltage Drift(12) Output Noise Voltage (12) RR Ripple Rejection f = 120Hz VI = 15V to 25V 55 71 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 18 – mΩ VI = 35V, TA = +25°C – 230 – mA TJ = +25°C – 2.2 – A Resistance(12) rO Output ISC Short Circuit Current IPK Peak Current(12) Notes: 11. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 12. These parameters, although guaranteed, are not 100% tested in production. 8 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7812E/KA7812ER) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 19V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7815E Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Output Voltage Line Regulation(13) (13) Load Regulation Conditions Min. Typ. Max. TJ = +25°C 14.4 15 15.6 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 17.5V to 30V 14.25 15 15.75 VI = 17.5V to 30V – 11 300 VI = 20V to 26V – 3 150 IO = 5mA to 1.5A – 12 300 IO = 250mA to 750mA – 4 150 TJ = +25°C TJ = +25°C Unit V mV mV Quiescent Current TJ = +25°C – 5.2 8.0 mA Quiescent Current Change IO = 5mA to 1.0A – – 0.5 mA VI = 17.5V to 30V – – 1.0 IO = 5mA – -1 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 90 – µV/Vo Output Voltage Drift(14) Output Noise Voltage (14) RR Ripple Rejection f = 120Hz VI = 18.5V to 28.5V 54 70 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 19 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(14) rO Output ISC Short Circuit Current IPK Peak Current(14) Notes: 13. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 14. These parameters, although guaranteed, are not 100% tested in production. 9 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7815E) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 23V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7818E Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Output Voltage Line Regulation(15) (15) Load Regulation Conditions Min. Typ. Max. TJ = +25°C 17.3 18 18.7 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 21V to 33V 17.1 18 18.9 VI = 21V to 33V – 15 360 VI = 24V to 30V – 5 180 IO = 5mA to 1.5A – 15 360 IO = 250mA to 750mA – 5.0 180 TJ = +25°C TJ = +25°C Unit V mV mV Quiescent Current TJ = +25°C – 5.2 8.0 mA Quiescent Current Change IO = 5mA to 1.0A – – 0.5 mA VI = 21V to 33V – – 1 IO = 5mA – -1 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 110 – µV/Vo Output Voltage Drift(16) Output Noise Voltage (16) RR Ripple Rejection f = 120Hz VI = 22V to 32V 53 69 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 22 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(16) rO Output ISC Short Circuit Current IPK Peak Current(16) Notes: 15. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 16. These parameters, although guaranteed, are not 100% tested in production. 10 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7818E) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 27V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7824E Symbol VO Parameter Output Voltage Conditions TJ = +25°C Regload IQ ∆IQ ∆VO/∆T VN Line Regulation(17) (17) Load Regulation TJ = +25°C TJ = +25°C Typ. Max. 23 24 25 22.8 24 25.25 VI = 27V to 38V – 17 480 VI = 30V to 36V – 6 240 IO = 5mA to 1.5A – 15 480 IO = 250mA to 750mA – 5.0 240 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 27V to 38V Regline Min. Unit V mV mV Quiescent Current TJ = +25°C – 5.2 8.0 mA Quiescent Current Change IO = 5mA to 1.0A – 0.1 0.5 mA VI = 27V to 38V – 0.5 1 IO = 5mA – -1.5 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 60 – µV/Vo Output Voltage Drift(18) Output Noise Voltage (18) RR Ripple Rejection f = 120Hz VI = 28V to 38V 50 67 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 28 – mΩ VI = 35V, TA = +25°C – 230 – mA TJ = +25°C – 2.2 – A Resistance(18) rO Output ISC Short Circuit Current IPK Peak Current(18) Notes: 17. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 18. These parameters, although guaranteed, are not 100% tested in production. 11 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7824E) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 33V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 10V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7805AE Symbol Min. Typ. Max. Unit TJ = +25°C 4.9 5 5.1 V IO = 5mA to 1A, PO ≤ 15W VI = 7.5V to 20V 4.8 5 5.2 VI = 7.5V to 25V IO = 500mA – 5 50 VI = 8V to 12V – 3 50 TJ = +25°C VI = 7.3V to 20V – 5 50 VI = 8V to 12V – 1.5 25 TJ = +25°C IO = 5mA to 1.5A – 9 100 IO = 5mA to 1A – 9 100 IO = 250mA to 750mA – 4 50 Quiescent Current TJ = +25°C – 5.0 6.0 mA Quiescent Current Change IO = 5mA to 1A – – 0.5 mA VI = 8 V to 25V, IO = 500mA – – 0.8 VI = 7.5V to 20V, TJ = +25°C – – 0.8 Output Voltage Drift IO = 5mA – -0.8 – mV/°C VN Output Noise Voltage f = 10Hz to 100kHz TA = +25°C – 10 – µV/Vo RR Ripple Rejection(20) f = 120Hz, IO = 500mA VI = 8V to 18V – 68 – dB Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 17 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A VO Regline Regload IQ ∆IQ ∆V/∆T VDrop Parameter Output Voltage Line Regulation(19) (19) Load Regulation (20) Resistance(20) rO Output ISC Short Circuit Current IPK Peak Current(20) Conditions mV mV Notes: 19. 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. 20. These parameters, although guaranteed, are not 100% tested in production. 12 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7805AE) (Continued) Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 11V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7806AE Symbol VO Regline Parameter Min. Typ. Max. Unit TJ = +25°C 5.58 6 6.12 V IO = 5mA to 1A, PO ≤ 15W VI = 8.6V to 21V 5.76 6 6.24 VI = 8.6V to 25V, IO = 500mA – 5 60 VI = 9V to 13V – 3 60 VI = 8.3V to 21V – 5 60 VI = 9V to 13V – 1.5 30 TJ = +25°C, IO = 5mA to 1.5A – 9 100 IO = 5mA to 1A – 9 100 IO = 250mA to 750mA – 5.0 50 Quiescent Current TJ = +25°C – 4.3 6.0 mA Quiescent Current Change IO = 5mA to 1A – – 0.5 mA VI = 9V to 25V, IO = 500mA – – 0.8 VI = 8.5V to 21V, TJ = +25°C – – 0.8 Output Voltage Drift IO = 5mA – -0.8 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 10 – µV/Vo Output Voltage Line Regulation(21) Conditions TJ = +25°C Regload IQ ∆IQ ∆V/∆T VN (21) Load Regulation (22) (22) mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 9V to 19V – 65 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 17 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(22) rO Output ISC Short Circuit Current IPK Peak Current(22) Notes: 21. 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. 22. These parameters, although guaranteed, are not 100% tested in production. 13 KA78XXE/KA78XXAE Rev. 1.0. www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7806AE) (Continued) KA7808AE Symbol VO Regline Regload IQ ∆IQ ∆V/∆T VN Parameter Min. Typ. Max. Unit TJ = +25°C 7.84 8 8.16 V IO = 5mA to 1A, PO ≤ 15W VI = 10.6V to 23V 7.7 8 8.3 VI = 10.6V to 25V, IO = 500mA – 6 80 VI = 11V to 17V – 3 80 TJ = +25°C VI = 10.4V to 23V – 6 80 VI = 11V to 17V – 2 40 TJ = +25°C, IO = 5mA to 1.5A – 12 100 IO = 5mA to 1A – 12 100 IO = 250mA to 750mA – 5 50 Quiescent Current TJ = +25°C – 5.0 6.0 mA Quiescent Current Change IO = 5mA to 1A – – 0.5 mA VI = 11V to 25V, IO = 500mA – – 0.8 VI = 10.6V to 23V, TJ = +25°C – – 0.8 Output Voltage Drift IO = 5mA – -0.8 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 10 – µV/Vo Output Voltage Line Regulation(23) (23) Load Regulation (24) (24) Conditions mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 11.5V to 21.5V – 62 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V f = 1kHz – 18 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(24) rO Output ISC Short Circuit Current IPK Peak Current(24) Notes: 23. 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. 24. These parameters, although guaranteed, are not 100% tested in production. 14 KA78XXE/KA78XXAE Rev. 1.0. www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7808AE) (Continued) Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 14V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 15V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7809AE Symbol VO Regline Regload IQ ∆IQ ∆V/∆T VN Parameter Min. Typ. Max. Unit TJ = +25°C 8.82 9.0 9.18 V IO = 5mA to 1A, PO ≤ 15W VI = 11.2V to 24V 8.65 9.0 9.35 VI = 11.7V to 25V, IO = 500mA – 6 90 VI = 12.5V to 19V – 4 45 TJ = +25°C VI = 11.5V to 24V – 6 90 VI = 12.5V to 19V – 2 45 TJ = +25°C, IO = 5mA to 1.0A – 12 100 IO = 5mA to 1.0A – 12 100 IO = 250mA to 750mA – 5 50 Quiescent Current TJ = +25°C – 5.0 6.0 mA Quiescent Current Change VI = 11.7V to 25V, TJ = +25°C – – 0.8 mA VI = 12V to 25V, IO = 500mA – – 0.8 IO = 5mA to 1.0A – – 0.5 Output Voltage Drift IO = 5mA – -1.0 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 10 – µV/Vo Output Voltage Line Regulation(25) (25) Load Regulation (26) (26) Conditions mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 12V to 22V – 62 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V f = 1kHz – 17 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(26) rO Output ISC Short Circuit Current IPK Peak Current(26) Notes: 25. 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. 26. These parameters, although guaranteed, are not 100% tested in production. 15 KA78XXE/KA78XXAE Rev. 1.0. www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7809AE) (Continued) Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 16V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7810AE Symbol VO Regline Regload IQ ∆IQ ∆VO/∆T VN Parameter Min. Typ. Max. Unit TJ = +25°C 9.8 10.0 10.2 V IO = 5mA to 1A, PO ≤ 15W VI = 12.8V to 25V 9.6 10.0 10.4 VI = 12.8V to 26V, IO = 500mA – 8.0 100 VI = 13V to 20V – 4.0 50.0 TJ = +25°C VI = 12.5V to 25V – 8.0 100 VI = 13V to 20V – 3.0 50.0 TJ = +25°C, IO = 5mA to 1.5A – 12.0 100 IO = 5mA to 1mA – 12.0 100 IO = 250mA to 750mA – 5.0 50.0 Quiescent Current TJ = +25°C – 5.0 6.0 mA Quiescent Current Change IO = 5mA to 1A – – 0.5 mA VI = 12.8V to 25V, IO = 500mA – – 0.8 VI = 13V to 26V, TJ = +25°C – – 0.5 IO = 5mA – -1.0 – mV/°C f = 10Hz to 100kHz, TA = +25°C – 10.0 – µV/Vo Output Voltage Line Regulation(27) (27) Load Regulation Output Voltage Drift(28) Output Noise Voltage (28) Conditions mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 14V to 24V – 62.0 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V f = 1kHz – 17.0 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(28) rO Output ISC Short Circuit Current IPK Peak Current(28) Notes: 27. 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. 28. These parameters, although guaranteed, are not 100% tested in production. 16 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7810AE) (Continued) Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 19V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7812AE Symbol VO Regline Regload IQ ∆IQ ∆V/∆T VN Parameter Min. Typ. Max. Unit TJ = +25°C 11.75 12 12.25 V IO = 5mA to 1A, PO ≤ 15W VI = 14.8V to 27V 11.5 12 12.5 VI = 14.8V to 30V, IO = 500mA – 10 120 VI = 16V to 22V – 4 120 TJ = +25°C VI = 14.5V to 27V – 10 120 VI = 16V to 22V – 3 60 TJ = +25°C, IO = 5mA to 1.5A – 12 100 IO = 5mA to 1.0A – 12 100 IO = 250mA to 750mA – 5 50 Quiescent Current TJ = +25°C – 5.1 6.0 mA Quiescent Current Change VI = 15V to 30V, TJ = +25°C – – 0.8 mA VI = 14V to 27V, IO = 500mA – – 0.8 IO = 5mA to 1.0A – – 0.5 Output Voltage Drift IO = 5mA – -1.0 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 10 – µV/Vo Output Voltage Line Regulation(29) (29) Load Regulation (30) (30) Conditions mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 14V to 24V – 60 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V f = 1kHz – 18 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(30) rO Output ISC Short Circuit Current IPK Peak Current(30) Notes: 29. 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. 30. These parameters, although guaranteed, are not 100% tested in production. 17 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7812AE) (Continued) Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 23V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7815AE Symbol VO Regline Regload IQ ∆IQ ∆V/∆T VN Parameter Min. Typ. Max. Unit TJ = +25°C 14.7 15 15.3 V IO = 5mA to 1A, PO ≤ 15W VI = 17.7V to 30V 14.4 15 15.6 VI = 17.9V to 30V, IO = 500mA – 10 150 VI = 20V to 26V – 5 150 TJ = +25°C VI = 17.5V to 30V – 11 150 VI = 20V to 26V – 3 75 TJ = +25°C, IO = 5mA to 1.5A – 12 100 IO = 5mA to 1.0A – 12 100 IO = 250mA to 750mA – 5 50 Quiescent Current TJ = +25°C – 5.2 6.0 mA Quiescent Current Change VI = 17.5V to 30V, TJ = +25°C – – 0.8 mA VI = 17.5V to 30V, IO = 500mA – – 0.8 IO = 5mA to 1.0A – – 0.5 Output Voltage Drift IO = 5mA – -1.0 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 10 – µV/Vo Output Voltage Line Regulation(31) (31) Load Regulation (32) (32) Conditions mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 18.5V to 28.5V – 58 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V f = 1kHz – 19 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(32) rO Output ISC Short Circuit Current IPK Peak Current(32) Notes: 31. 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. 32. These parameters, although guaranteed, are not 100% tested in production. 18 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7815AE) (Continued) Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 27V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7818AE Symbol VO Regline Regload IQ ∆IQ ∆V/∆T VN Parameter Min. Typ. Max. Unit TJ = +25°C 17.64 18 18.36 V IO = 5mA to 1A, PO ≤ 15W VI = 21V to 33V 17.3 18 18.7 VI = 21V to 33V, IO = 500mA – 15 180 VI = 21V to 33V – 5 180 TJ = +25°C VI = 20.6V to 33V – 15 180 VI = 24V to 30V – 5 90 TJ = +25°C, IO = 5mA to 1.5A – 15 100 IO = 5mA to 1.0A – 15 100 IO = 250mA to 750mA – 7 50 Quiescent Current TJ = +25°C – 5.2 6.0 mA Quiescent Current Change VI = 21V to 33V, TJ = +25°C – – 0.8 mA VI = 21V to 33V, IO = 500mA – – 0.8 IO = 5mA to 1.0A – – 0.5 Output Voltage Drift IO = 5mA – -1.0 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 10 – µV/Vo Output Voltage Line Regulation(33) (33) Load Regulation (34) (34) Conditions mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 22V to 32V – 57 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V f = 1kHz – 19 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(34) rO Output ISC Short Circuit Current IPK Peak Current(34) Notes: 33. 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. 34. These parameters, although guaranteed, are not 100% tested in production. 19 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7818AE) (Continued) Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 33V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. KA7824AE Symbol VO Regline Regload IQ ∆IQ ∆V/∆T VN Parameter Min. Typ. Max. Unit 23.5 24 24.5 V IO = 5mA to 1A, PO ≤ 15W VI = 27.3V to 38V 23 24 25 VI = 27V to 38V, IO = 500mA – 18 240 VI = 21V to 33V – 6 240 TJ = +25°C VI = 26.7V to 38V – 18 240 VI = 30V to 36V – 6 120 TJ = +25°C, IO = 5mA to 1.5A – 15 100 IO = 5mA to 1.0A – 15 100 IO = 250mA to 750mA – 7 50 Quiescent Current TJ = +25°C – 5.2 6.0 mA Quiescent Current Change VI = 27.3V to 38V, TJ = +25°C – – 0.8 mA VI = 27.3V to 38V, IO = 500mA – – 0.8 IO = 5mA to 1.0A – – 0.5 Output Voltage Drift IO = 5mA – -1.5 – mV/°C Output Noise Voltage f = 10Hz to 100kHz, TA = 25°C – 10 – µV/Vo Output Voltage Conditions TJ = +25°C Line Regulation(35) (35) Load Regulation (36) (36) mV mV RR Ripple Rejection f = 120Hz, IO = 500mA VI = 28V to 38V – 54 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V f = 1kHz – 20 – mΩ VI = 35V, TA = +25°C – 250 – mA TJ = +25°C – 2.2 – A Resistance(36) rO Output ISC Short Circuit Current IPK Peak Current(36) Notes: 35. 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. 36. These parameters, although guaranteed, are not 100% tested in production. 20 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (KA7824AE) (Continued) 5.75 3 VI = 10V VO = 5V IO = 5mA TJ = 25°C ∆VO = 100mV 2.5 OUTPUT CURRENT (A) QUIESCENT CURRENT (mA) 6 5.5 5.25 5 4.75 2 1.5 1 .5 4.5 -50 -25 0 25 50 75 100 0 125 0 JUNCTION TEMPERATURE (°C) QUIESCENT CURRENT (mA) NORMALIZED OUTPUT VOLTAGE (V) 7 1.01 1 .99 -25 0 25 50 75 100 20 25 30 35 TJ = 25°C VO = 5V IO = 10mA 6.5 6 5.5 5 4.5 4 125 JUNCTION TEMPERATURE (°C) 5 10 15 20 25 30 35 INPUT VOLTAGE (V) Figure 5. Output Voltage Figure 6. Quiescent Current 21 KA78XXE/KA78XXAE Rev. 1.0.2 15 Figure 4. Peak Output Current VI – VO = 5V IO = 5mA .98 -50 10 INPUT-OUTPUT DIFFERENTIAL (V) Figure 3. Quiescent Current 1.02 5 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Typical Performance Characteristics 1 3 KA78XXE Output Input CO 2 CI 0.1µF 0.33µF Figure 7. DC Parameters 1 3 KA78XXE Input Output 2 270pF RL VO 2N6121 OR EQ 0.33µF 0V VO 30µS 100Ω Figure 8. Load Regulation 5.1Ω 1 KA78XXE Input 3 Output 0.33µF 2 RL 470µF 120Hz + Figure 9. Ripple Rejection 22 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Typical Applications KA78XXE 3 Output Input CI CO 2 KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator 1 0.1µF 0.33µF Figure 10. Fixed Output Regulator 1 KA78XXE 3 Output Input CI CO 2 0.33µF Vxx 0.1µF R1 IQ IO RL Vxx IO = + R1 IQ Figure 11. Constant Current Regulator Notes: 1. To specify an output voltage. substitute voltage value for "XX." A common ground is required between the input and the Output voltage. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input ripple voltage. 2. CI is required if regulator is located an appreciable distance from power Supply filter. 3. CO improves stability and transient response. 1 KA78XXE Output 3 Input CI CO 2 0.33µF 0.1µF Vxx R1 IQ R2 IRI ≥ 51Q VO = VXX(1 + R2 / R1) + IQR2 Figure 12. Circuit for Increasing Output Voltage 23 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com 1 Output 3 KA7805E 2 CI 0.33µF 6 CO - 2 KA741 + 3 4 0.1µF 10KΩ IRI ≥ 5 IQ VO = VXX(1 + R2 / R1) + IQR2 Figure 13. Adjustable Output Regulator (7 to 30V) Input VI IQ1 R1 1 3Ω Output 3 KA78XXE IO IREG Vo 2 0.1µF 0.33µF IO = IREG + BQ1 (IREG–VBEQ1/R1) Figure 14. High Current Voltage Regulator Q1 Input VI Q2 R1 1 KA78XXE 3 Vo Output 3Ω 0.33µF Q1 = TIP42 Q2 = TIP42 RSC = 2 0.1µF V BEQ2 I SC Figure 15. High Output Current with Short Circuit Protection 24 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Input KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator 1 3 KA78XXE VI VO 2 0.33µF 0.1µF 7 COMMON 6 COMMON 2 KA741 4 -VIN _ 4.7kΩ + 3 4.7kΩ -VO TIP42 Figure 16. Tracking Voltage Regulator 1 KA7815E 3 +20V +15V 0.33µF + 2 0.1µF 2.2µF 1µF + 1N4001 1 2 -20V 1N4001 KA7915E 3 -15V Figure 17. Split Power Supply ( ±15V-1A) 25 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com Input + 0.1µF 2 1 3 KA78XXE Figure 18. Negative Output Voltage Circuit D45H11 Input 1mH Output 470Ω 4.7Ω Z1 1 + 0.33uF 10uF KA78XXE 3 2 + 0.5Ω 2000µF Figure 19. Switching Regulator 26 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Output Dimensions in millimeters TO-220 4.50 ±0.20 2.80 ±0.10 (3.00) +0.10 1.30 –0.05 18.95MAX. (3.70) ø3.60 ±0.10 15.90 ±0.20 1.30 ±0.10 (8.70) (1.46) 9.20 ±0.20 (1.70) 9.90 ±0.20 1.52 ±0.10 10.08 ±0.30 (1.00) 13.08 ±0.20 ) (45° 1.27 ±0.10 0.80 ±0.10 2.54TYP [2.54 ±0.20] +0.10 0.50 –0.05 2.40 ±0.20 2.54TYP [2.54 ±0.20] 10.00 ±0.20 27 KA78XXE/KA78XXAE Rev. 1.0.1 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Mechanical Dimensions KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator Mechanical Dimensions (Continued) Dimensions in millimeters D-PAK MIN0.55 0.91 ±0.10 9.50 ±0.30 0.50 ±0.10 0.76 ±0.10 0.50 ±0.10 1.02 ±0.20 2.30TYP [2.30±0.20] (1.00) (3.05) (2XR0.25) (0.10) 2.70 ±0.20 6.10 ±0.20 9.50 ±0.30 6.60 ±0.20 (5.34) (5.04) (1.50) (0.90) 2.30 ±0.20 (0.70) 2.30TYP [2.30±0.20] (0.50) 2.30 ±0.10 0.89 ±0.10 MAX0.96 (4.34) 2.70 ±0.20 0.80 ±0.20 0.60 ±0.20 (0.50) 6.10 ±0.20 5.34 ±0.30 0.70 ±0.20 6.60 ±0.20 0.76 ±0.10 28 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx™ FAST® FASTr™ ActiveArray™ FPS™ Bottomless™ FRFET™ Build it Now™ GlobalOptoisolator™ CoolFET™ GTO™ CROSSVOLT™ HiSeC™ DOME™ I2C™ EcoSPARK™ i-Lo™ E2CMOS™ EnSigna™ ImpliedDisconnect™ FACT™ IntelliMAX™ FACT Quiet Series™ Across the board. Around the world.™ The Power Franchise® Programmable Active Droop™ ISOPLANAR™ LittleFET™ MICROCOUPLER™ MicroFET™ MicroPak™ MICROWIRE™ MSX™ MSXPro™ OCX™ OCXPro™ OPTOLOGIC® OPTOPLANAR™ PACMAN™ POP™ Power247™ PowerEdge™ PowerSaver™ PowerTrench® QFET® QS™ QT Optoelectronics™ Quiet Series™ RapidConfigure™ RapidConnect™ µSerDes™ ScalarPump™ SILENT SWITCHER® SMART START™ SPM™ Stealth™ SuperFET™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TCM™ TinyLogic® TINYOPTO™ TruTranslation™ UHC™ UniFET™ UltraFET® VCX™ Wire™ 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. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILDíS WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. LIFE SUPPORT POLICY FAIRCHILDíS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL 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, or (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 significant injury to the user. 2. A critical component is 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. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. Rev. I19 29 KA78XXE/KA78XXAE Rev. 1.0.2 www.fairchildsemi.com KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator TRADEMARKS