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KA78XXE / KA78XXAE 3-Terminal 1 A Positive Voltage Regulator Features Description • • • • • The KA78XXE / KA78XXAE series of three-terminal positive regulators is available in the TO-220 / D-PAK package 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. If adequate heat sinking is provided, they can deliver over 1 A output current.
Product Number Output Voltage Tolerance(1) Package Operating Temperature Parking Method KA7805ETU KA7806ETU KA7808ETU KA7809ETU KA7810ETU TO-220 (Dual Gauge) Rail KA7812ETU KA7815ETU KA7818ETU ±4% -40°C to +125°C KA7824ETU KA7805ERTF KA7805ERTM D-PAK(2) KA7808ERTM Tape and Reel KA7809ERTM KA7812ERTM KA7805AETU KA7809AETU KA7810AETU KA7812AETU ±2% TO-220 (Dual Gauge) 0°C to +125°C Rail KA7815AETU KA7824AETU Notes: 1. Above output voltage tolerance is available at 25°C. 2.
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI =10 V, CI= 0.33 μF, CO=0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. 4.80 5.00 5.20 4.75 5.00 5.25 VI = 7 V to 25 V 4.0 100.0 VI = 8 V to 12 V 1.6 50.0 IO = 5.0 mA to 1.5 A 9 100 IO = 250 mA to 750 mA 4 50 5 8 IO = 5 mA to 1.0 A 0.03 0.50 VI = 7 V to 25 V 0.30 1.30 -0.8 mV/°C 42 μV TJ = +25°C VO Output Voltage 5.0 mA IO 1.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 11 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. 5.75 6.00 6.25 5.70 6.00 6.30 VI = 8 V to 25 V 5.0 120.0 VI = 9 V to 13 V 1.5 60.0 IO = 5 mA to 1.5 A 9 120 IO = 250 mA to 750 mA 3 60 5 8 TJ = +25°C VO Output Voltage 1.0 A, PO 5.0 mA IO VI = 8.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 14 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions TJ = +25°C VO Output Voltage 5.0 mA IO 1.0 A, PO VI = 10.5 V to 23 V Regline Line Regulation(7) TJ = +25°C Regload Load Regulation(7) TJ = +25°C IQ Quiescent Current TJ = +25°C ΔIQ Quiescent Current Change ΔVO/ΔT VN 15 W, Min. Typ. Max. 7.7 8.0 8.3 7.6 8.0 8.4 Unit V VI = 10.5 V to 25 V 5 160 VI = 11.5 V to 17 V 2 80 IO = 5.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 15 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 8.65 9.00 9.35 Output Voltage 5.0 mA ≤ IO ≤ 1.0 A, PO ≤ 15 W, VI = 11.5 V to 24 V 8.60 9.00 9.40 Regline Line Regulation(9) TJ = +25°C Regload Load Regulation(9) TJ = +25°C IQ Quiescent Current TJ = +25°C ΔIQ Quiescent Current Change IO = 5 mA to 1.0 A 0.5 VI = 11.5 V to 26 V 1.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 16 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 9.6 10.0 10.4 Output Voltage 5.0 mA ≤ IO ≤ 1.0 A, PO ≤ 15 W, VI = 12.5 V to 25 V 9.5 10.0 10.5 Regline Line Regulation(11) TJ = +25°C Regload Load Regulation(11) TJ = +25°C IQ Quiescent Current TJ = +25°C ΔIQ Quiescent Current Change IO = 5 mA to 1.0 A 0.5 VI = 12.5 V to 29 V 1.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 19 V, CI = 0.33 μF, CO= 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 11.5 12.0 12.5 Output Voltage 5.0 mA ≤ IO ≤ 1.0 A, PO ≤ 15 W, VI = 14.5 V to 27 V 11.4 12.0 12.6 Regline Line Regulation(13) TJ = +25°C VI = 14.5 V to 30 V 10 240 VI = 16 V to 22 V 3 120 Regload Load Regulation(13) TJ = +25°C IO = 5 mA to 1.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 23 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. TJ = +25°C 14.40 15.00 15.60 Output Voltage 5.0 mA ≤ IO ≤ 1.0 A, PO ≤ 15 W, VI = 17.5 V to 30 V 14.25 15.00 15.75 Regline Line Regulation(15) TJ = +25°C VI = 17.5 V to 30 V 11 300 VI = 20 V to 26 V 3 150 Regload Load Regulation(15) TJ = +25°C IO = 5 mA to 1.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 27 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. TJ =+25°C 17.3 18.0 18.7 Output Voltage 5.0 mA ≤ IO ≤ 1.0 A, PO ≤ 15 W, VI = 21 V to 33 V 17.1 18.0 18.9 Regline Line Regulation(17) TJ = +25°C Regload Load Regulation(17) TJ = +25°C IQ Quiescent Current TJ =+25°C ΔIQ Quiescent Current Change IO = 5 mA to 1.0 A 0.5 VI = 21 V to 33 V 1.
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 33 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. TJ = +25°C 23.00 24.00 25.00 Output Voltage 5.0 mA ≤ IO ≤ 1.0 A, PO ≤ 15 W, VI = 27 V to 38 V 22.80 24.00 25.
Refer to the test circuit, 0°C < TJ < +125°C, Io = 1 A, VI = 10 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Output Voltage Line Regulation (21) Conditions Min. Typ. Max. TJ =+25°C 4.9 5.0 5.1 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 7.5 V to 20 V 4.8 5.0 5.2 VI = 7.5 V to 25 V, IO = 500 mA 5.0 50.0 VI = 8 V to 12 V 3.0 50.0 VI= 7.3 V to 20 V 5.0 50.0 VI= 8 V to 12 V TJ = +25°C Regload IQ Load Regulation (21) Quiescent Current 1.5 25.
Refer to the test circuit, 0°C < TJ < +125 °C, IO = 1 A, VI = 15 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Output Voltage Line Regulation (23) Conditions Min. Typ. Max. TJ = +25°C 8.82 9.00 9.18 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 11.2 V to 24 V 8.65 9.00 9.35 VI = 11.7 V to 25 V, IO = 500 mA 6 90 VI = 12.5 V to 19 V 4 45 6 90 TJ = +25°C Regload IQ Load Regulation(23) Quiescent Current VI = 11.
Refer to the test circuit, 0°C < TJ < +125 °C, IO = 1 A, VI = 16 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Output Voltage Line Regulation (25) Conditions Min. Typ. Max. TJ =+25°C 9.8 10.0 10.2 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 12.8 V to 25 V 9.6 10.0 10.4 VI = 12.8 V to 26 V, IO = 500 mA 8 100 VI = 13 V to 20 V 4 50 8 100 TJ = +25°C Regload IQ Load Regulation(25) Quiescent Current VI = 12.
Refer to the test circuit, 0°C < TJ < +125°C, IO = 1 A, VI = 19 V, CI= 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Output Voltage Line Regulation(27) Conditions Min. Typ. Max. TJ = +25°C 11.75 12.00 12.25 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 14.8 V to 27 V 11.50 12.00 12.50 VI = 14.8 V to 30 V, IO = 500 mA 10 120 VI= 16 V to 22 V 4 120 10 120 TJ = +25°C Regload Load Regulation(27) VI= 14.5 V to 27 V 3 60 TJ = +25°C, IO = 5 mA to 1.
Refer to the test circuit, 0°C < TJ < +125°C, IO = 1 A, VI = 23 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Output Voltage Line Regulation (29) Conditions Min. Typ. Max. TJ = +25°C 14.7 15.0 15.3 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 17.7 V to 30 V 14.4 15.0 15.6 VI = 17.9 V to 30 V, IO = 500 mA 10 150 VI = 20 V to 26 V 5 150 11 150 TJ = +25°C Regload Load Regulation(29) VI = 17.5 V to 30 V 3 75 TJ = +25°C, IO = 5 mA to 1.
Refer to the test circuit, 0°C < TJ < +125°C, IO =1 A, VI = 33 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Output Voltage Line Regulation (31) Conditions Min. Typ. Max. TJ = +25°C 23.5 24.0 24.5 IO = 5 mA to 1 A, PO ≤15 W, VI = 27.3 V to 38 V 23.0 24.0 25.0 VI = 27 V to 38 V, IO = 500 mA 18 240 VI = 21 V to 33 V 6 240 18 240 TJ = +25°C Regload Load Regulation(31) VI = 26.7 V to 38 V 6 120 TJ = +25°C, IO = 5 mA to 1.
5.75 3 VI = 10V VO = 5V IO = 5mA 5.5 5.25 5 4.75 2 1.5 1 .5 4.5 -50 -25 0 25 50 75 100 0 125 JUNCTION TEMPERATURE (°C) QUIESCENT CURRENT (mA) NORMALIZED OUTPUT VOLTAGE (V) 7 1.01 1 0.99 -25 0 25 50 75 100 10 15 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 4. Output Voltage © 2006 Fairchild Semiconductor Corporation KA78XXE / KA78XXAE Rev. 1.9 5 Figure 3.
1 KA78XXE 3 Output Input CO 2 CI 0.33 μF 0.1 μF Figure 6. DC Parameters 1 KA78XXE 3 Input Output 270 pF RL 2 VO 2N6121 OR EQ 0.33 μF OV 30 μS VO 100 Ω Figure 7. Load Regulation 5.1 Ω 1 KA78XXE Input 3 Output 0.33 μF 2 RL 470 μF 120 Hz + Figure 8. Ripple Rejection © 2006 Fairchild Semiconductor Corporation KA78XXE / KA78XXAE Rev. 1.9 www.fairchildsemi.
1 KA78XXE 3 Output Input CO 2 CI 0.33μF 0.1μF Figure 9. Fixed Output Regulator 1 3 KA78XXE Output Input CI CO 2 0.33 μF 0.1 μF Vxx R1 IQ IO RL Vxx IO = + R1 IQ Figure 10. Constant Current Regulator Notes: 33. 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 2.0 V above the output voltage even during the low point on the input ripple voltage. 34.
Input 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 12. Adjustable Output Regulator (7 V to 30 V) Input VI IQ1 R1 1 3Ω Output 3 KA78XXE Vo Io IREG 2 0.33 μF 0.1 μF IO = IREG + BQ1 (IREG-VBEQ1/R1) Figure 13. High-Current Voltage Regulator Q1 Input VI Q2 R1 1 3Ω KA78XXE 3 Vo Output 0.33 μF Q1 = TIP42 Q2 = TIP42 RSC = 2 0.1 μF VBEQ2 ISC Figure 14.
KA78XXE / KA78XXAE — 3-Terminal 1 A Positive Voltage Regulator Typical Applications (Continued) 1 3 KA78XXE VO VI 2 0.33 μF 0.1 μF 7 COMMON 6 _ COMMON 2 KA741 + 4 -VIN 4.7 kΩ 3 4.7 kΩ -VO TIP42 Figure 15. Tracking Voltage Regulator 1 KA7815E 3 +20 V +15 V 2 0.1 μF 0.33 μ F + 2.2 μF 1 μF + 1N4001 1 -20 V 2 1N4001 KA7915E 3 -15 V Figure 16. Split-Power Supply (±15 V - 1 A) © 2006 Fairchild Semiconductor Corporation KA78XXE / KA78XXAE Rev. 1.9 www.fairchildsemi.
Output Input + 0.1 μF 2 1 KA78XXE Figure 17. Negative Output Voltage Circuit D45H11 Input 1mH Output 470 Ω 4.7 Ω Z1 1 + KA78XXE 0.33 μF 10 μF 0.5 Ω 3 2 + 2000 μF Figure 18. Switching Regulator © 2006 Fairchild Semiconductor Corporation KA78XXE / KA78XXAE Rev. 1.9 www.fairchildsemi.
KA78XXE / KA78XXAE — 3-Terminal 1 A Positive Voltage Regulator Physical Dimensions Figure 19. TO-220, MOLDED, 3-LEAD, NON-JEDEC, VARIATION AB (DUAL GUAGE) © 2006 Fairchild Semiconductor Corporation KA78XXE / KA78XXAE Rev. 1.9 www.fairchildsemi.
KA78XXE / KA78XXAE — 3-Terminal 1 A Positive Voltage Regulator Physical Dimensions (Continued) ) $ 0,1 ) 0,1 ) & 0,1 0$; 0,1 /$1' 3$77(51 5(&200(1'$7,21 ) % ) ) 0,1 ) 6(( '(7$,/ $ % ) *$*( 3/$1( ) 127(6 81/(66 27+(5:,6( 63(&,),(' $ 127 &203/,
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