TA7805,057,06,07,08,09,10,12,15,18,20,24F TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA7805F,TA78057F,TA7806F,TA7807F,TA7808F,TA7809F, TA7810F,TA7812F,TA7815F,TA7818F,TA7820F,TA7824F Three Terminal Positive Voltage Regulators 5 V, 5.7 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, 15 V, 18 V, 20 V, 24 V Features l Suitable for CMOS, TTL, the other digital IC's power supply. l Internal thermal overload protection. l Internal short circuit current limiting. l Maximum output current of 1 A. l Packaged in POWER MOLD. Pin Assignment Marking side 1 3 2 IN COMMON OUT (CASE) Weight HSIP3-P-2.30B: 0.36 g (Typ.) HSOP3-P-2.30A: 0.36 g (Typ.) 1 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F Equivalent Circuit Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit TA7805F TA78057F TA7806F TA7807F 35 TA7808F Input voltage TA7809F TA7810F VIN V TA7812F TA7815F TA7818F 40 TA7820F TA7824F Power dissipation (Ta = 25°C) (Tc = 25°C) PD 1 10 W Operating temperature Topr −30~85 °C Storage temperature Tstg −55~150 °C Junction temperature Tj 150 °C Rth (j-c) 12.5 Rth (j-a) 125 Thermal resistance 2 °C/W 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F TA7805F Electrical Characteristics (Unless otherwise specified, VIN = 10 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 4.8 5.0 5.2 V Reg·line 1 Tj = 25°C 7.0 V ≤ VIN ≤ 25 V ― 3 100 8.0 V ≤ VIN ≤ 12 V ― 1 50 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 15 100 250 mA ≤ IOUT ≤ 750 mA ― 5 50 Output voltage VOUT 1 Tj = 25°C 4.75 ― 5.25 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.2 8.0 mA Quiescent current change ∆IB 1 7.0 V ≤ VIN ≤ 25 V, IOUT = 5 mA, Tj = 25°C ― ― 1.3 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 50 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 10 V ≤ VIN ≤ 18 V IOUT = 50 mA, Tj = 25°C 57 73 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 1.6 ― A TCVO 1 IOUT = 5 mA ― −0.6 ― mV/°C Quiescent current Average temperature coefficient of output voltage 7.0 V ≤ VIN ≤ 20 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV TA78057F Electrical Characteristics (Unless otherwise specified, VIN = 10.7 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 5.47 5.7 5.93 V Reg·line 1 Tj = 25°C 7.7 V ≤ VIN ≤ 25 V ― 4 110 8.7 V ≤ VIN ≤ 12.7 V ― 2 55 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 15 110 250 mA ≤ IOUT ≤ 750 mA ― 5 55 Output voltage VOUT 1 Tj = 25°C 5.42 ― 5.98 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.3 8.0 mA Quiescent current change ∆IB 1 7.7 V ≤ VIN ≤ 25 V, IOUT = 5 mA, Tj = 25°C ― ― 1.3 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 55 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 8.8 V ≤ VIN ≤ 18.8 V, IOUT = 50 mA, Tj = 25°C 56 72 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 1.5 ― A TCVO 1 IOUT = 5 mA ― −0.7 ― mV/°C Quiescent current Average temperature coefficient of output voltage 3 7.7 V ≤ VIN ≤ 20.7 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F TA7806F Electrical Characteristics (Unless otherwise specified, VIN = 11 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 5.75 6.0 6.25 V Reg·line 1 Tj = 25°C 8.0 V ≤ VIN ≤ 25 V ― 4 120 9 V ≤ VIN ≤ 13 V ― 2 60 Load regulation Reg·load 1 Tj = 25°C Output voltage VOUT 1 Tj = 25°C IB 1 Quiescent current change ∆IB Output noise voltage mV 5 mA ≤ IOUT ≤ 1.4 A ― 15 120 250 mA ≤ IOUT ≤ 750 mA ― 5 60 8 V ≤ VIN ≤ 21 V 5.0 mA ≤ IOUT ≤ 1.0 A 5.7 ― 6.3 V Tj = 25°C, IOUT = 5 mA ― 4.3 8.0 mA 1 8.0 V ≤ VIN ≤ 25 V, IOUT = 5 mA, Tj = 25°C ― ― 1.3 mA VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 55 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 11 V ≤ VIN ≤ 19 V IOUT = 50 mA, Tj = 25°C 56 72 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 1.5 ― A TCVO 1 IOUT = 5 mA ― −0.7 ― mV/°C Quiescent current Average temperature coefficient of output voltage mV TA7807F Electrical Characteristics (Unless otherwise specified, VIN = 12 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 6.72 7.0 7.28 V Reg·line 1 Tj = 25°C 9 V ≤ VIN ≤ 25 V ― 5 140 10 V ≤ VIN ≤ 14 V ― 2 70 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 15 140 250 mA ≤ IOUT ≤ 750 mA ― 5 70 Output voltage VOUT 1 Tj = 25°C 6.65 ― 7.35 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.3 8.0 mA Quiescent current change ∆IB 1 9 V ≤ VIN ≤ 25 V, IOUT = 5 mA, Tj = 25°C ― ― 1.3 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 60 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 12 V ≤ VIN ≤ 20 V IOUT = 50 mA, Tj = 25°C 54 70 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 1.3 ― A TCVO 1 IOUT = 5 mA ― −0.8 ― mV/°C Quiescent current Average temperature coefficient of output voltage 4 9 V ≤ VIN ≤ 22 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F TA7808F Electrical Characteristics (Unless otherwise specified, VIN = 14 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 7.7 8.0 8.3 V Reg·line 1 Tj = 25°C 10.5 V ≤ VIN ≤ 25 V ― 6 160 11 V ≤ VIN ≤ 17 V ― 2 80 Load regulation Reg·load 1 Tj = 25°C Output voltage VOUT 1 Tj = 25°C IB 1 Quiescent current change ∆IB Output noise voltage mV 5 mA ≤ IOUT ≤ 1.4 A ― 12 160 250 mA ≤ IOUT ≤ 750 mA ― 4 80 10.5 V ≤ VIN ≤ 23 V 5.0 mA ≤ IOUT ≤ 1.0 A 7.6 ― 8.4 V Tj = 25°C, IOUT = 5 mA ― 4.3 8.0 mA 1 10.5 V ≤ VIN ≤ 25 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 70 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 14 V ≤ VIN ≤ 21.5 V IOUT = 50 mA, Tj = 25°C 53 69 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 1.1 ― A TCVO 1 IOUT = 5 mA ― −1.0 ― mV/°C Quiescent current Average temperature coefficient of output voltage mV TA7809F Electrical Characteristics (Unless otherwise specified, VIN = 15 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 8.64 9.0 9.36 V Reg·line 1 Tj = 25°C 11.5 V ≤ VIN ≤ 26 V ― 7.0 180 13 V ≤ VIN ≤ 19 V ― 2.5 90 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 12 180 250 mA ≤ IOUT ≤ 750 mA ― 4 90 Output voltage VOUT 1 Tj = 25°C 8.55 ― 9.45 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.3 8.0 mA Quiescent current change ∆IB 1 11.5 V ≤ VIN ≤ 26 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 75 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 15 V ≤ VIN ≤ 22.5 V IOUT = 50 mA, Tj = 25°C 51 67 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 1.0 ― A TCVO 1 IOUT = 5 mA ― −1.1 ― mV/°C Quiescent current Average temperature coefficient of output voltage 5 11.5 V ≤ VIN ≤ 24 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F TA7810F Electrical Characteristics (Unless otherwise specified, VIN = 16 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 9.6 10.0 10.4 V Reg·line 1 Tj = 25°C 12.5 V ≤ VIN ≤ 27 V ― 8 200 14 V ≤ VIN ≤ 20 V ― 2.5 100 Load regulation Reg·load 1 Tj = 25°C Output voltage VOUT 1 Tj = 25°C IB 1 Quiescent current change ∆IB Output noise voltage mV 5 mA ≤ IOUT ≤ 1.4 A ― 12 200 250 mA ≤ IOUT ≤ 750 mA ― 4 100 12.5 V ≤ VIN ≤ 25 V 5.0 mA ≤ IOUT ≤ 1.0 A 9.5 ― 10.5 V Tj = 25°C, IOUT = 5 mA ― 4.3 8.0 mA 1 12.5 V ≤ VIN ≤ 27 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 80 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 16 V ≤ VIN ≤ 23.5 V IOUT = 50 mA, Tj = 25°C 50 66 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 0.9 ― A TCVO 1 IOUT = 5 mA ― −1.3 ― mV/°C Quiescent current Average temperature coefficient of output voltage mV TA7812F Electrical Characteristics (Unless otherwise specified, VIN = 19 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 11.5 12.0 12.5 V Reg·line 1 Tj = 25°C 14.5 V ≤ VIN ≤ 30 V ― 10 240 16 V ≤ VIN ≤ 22 V ― 3 120 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 12 240 250 mA ≤ IOUT ≤ 750 mA ― 4 120 Output voltage VOUT 1 Tj = 25°C 11.4 ― 12.6 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.3 8.0 mA Quiescent current change ∆IB 1 14.5 V ≤ VIN ≤ 30 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 90 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 19 V ≤ VIN ≤ 25 V IOUT = 50 mA, Tj = 25°C 50 66 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 0.7 ― A TCVO 1 IOUT = 5 mA ― −1.6 ― mV/°C Quiescent current Average temperature coefficient of output voltage 6 14.5 V ≤ VIN ≤ 27 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F TA7815F Electrical Characteristics (Unless otherwise specified, VIN = 23 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 14.4 15.0 15.6 V Reg·line 1 Tj = 25°C 17.5 V ≤ VIN ≤ 30 V ― 11 300 20 V ≤ VIN ≤ 26 V ― 3 150 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 12 300 250 mA ≤ IOUT ≤ 750 mA ― 4 150 Output voltage VOUT 1 Tj = 25°C 14.25 ― 15.75 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.4 8.0 mA Quiescent current change ∆IB 1 17.5 V ≤ VIN ≤ 30 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 110 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 23 V ≤ VIN ≤ 28.5 V IOUT = 50 mA, Tj = 25°C 49 65 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 0.5 ― A TCVO 1 IOUT = 5 mA ― −2.0 ― mV/°C Quiescent current Average temperature coefficient of output voltage 17.5 V ≤ VIN ≤ 30 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV TA7818F Electrical Characteristics (Unless otherwise specified, VIN = 27 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 17.3 18.0 18.7 V Reg·line 1 Tj = 25°C 21 V ≤ VIN ≤ 33 V ― 13 360 24 V ≤ VIN ≤ 30 V ― 4 180 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 12 360 250 mA ≤ IOUT ≤ 750 mA ― 4 180 Output voltage VOUT 1 Tj = 25°C 17.1 ― 18.9 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.5 8.0 mA Quiescent current change ∆IB 1 21 V ≤ VIN ≤ 33 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 125 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 27 V ≤ VIN ≤ 32 V IOUT = 50 mA, Tj = 25°C 47 63 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 0.4 ― A TCVO 1 IOUT = 5 mA ― −2.5 ― mV/°C Quiescent current Average temperature coefficient of output voltage 7 21 V ≤ VIN ≤ 33 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F TA7820F Electrical Characteristics (Unless otherwise specified, VIN = 29 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 19.2 20.0 20.8 V Reg·line 1 Tj = 25°C 23 V ≤ VIN ≤ 35 V ― 15 400 26 V ≤ VIN ≤ 32 V ― 5 200 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 12 400 250 mA ≤ IOUT ≤ 750 mA ― 4 200 Output voltage VOUT 1 Tj = 25°C 19.0 ― 21.0 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.6 8.0 mA Quiescent current change ∆IB 1 23 V ≤ VIN ≤ 35 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 135 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 29 V ≤ VIN ≤ 34 V IOUT = 50 mA, Tj = 25°C 45 61 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 0.4 ― A TCVO 1 IOUT = 5 mA ― −3.0 ― mV/°C Quiescent current Average temperature coefficient of output voltage 23 V ≤ VIN ≤ 35 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV TA7824F Electrical Characteristics (Unless otherwise specified, VIN = 33 V, IOUT = 500 mA, 0°C ≤ Tj ≤ 125°C) Symbol Test Circuit Output voltage VOUT Line regulation Characteristics Test Condition Min Typ. Max Unit 1 Tj = 25°C, IOUT = 100 mA 23.0 24.0 25.0 V Reg·line 1 Tj = 25°C 27 V ≤ VIN ≤ 38 V ― 18 480 30 V ≤ VIN ≤ 36 V ― 6 240 Load regulation Reg·load 1 Tj = 25°C 5 mA ≤ IOUT ≤ 1.4 A ― 12 480 250 mA ≤ IOUT ≤ 750 mA ― 4 240 Output voltage VOUT 1 Tj = 25°C 22.8 ― 25.2 V IB 1 Tj = 25°C, IOUT = 5 mA ― 4.6 8.0 mA Quiescent current change ∆IB 1 27 V ≤ VIN ≤ 38 V, IOUT = 5 mA, Tj = 25°C ― ― 1.0 mA Output noise voltage VNO 2 Ta = 25°C, 10 Hz ≤ f ≤ 100 kHz IOUT = 50 mA ― 150 ― µVrms Ripple rejection R.R. 3 f = 120 Hz, 33 V ≤ VIN ≤ 38 V IOUT = 50 mA, Tj = 25°C 45 61 ― dB Dropout voltage VD 1 IOUT = 1.0 A, Tj = 25°C ― 2.0 ― V Short circuit current limit ISC 1 Tj = 25°C ― 0.3 ― A TCVO 1 IOUT = 5 mA ― −3.5 ― mV/°C Quiescent current Average temperature coefficient of output voltage 8 27 V ≤ VIN ≤ 38 V 5.0 mA ≤ IOUT ≤ 1.0 A mV mV 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F Test Circuit 1/Standard Application Circuit Test Circuit 2 VNO Test Circuit 3 R.R. 9 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F 10 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F 11 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F 12 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F Precautions on Application (1) In regard to GND, be careful not to apply a negative voltage to the input/output terminal. Further, special care is necessary in case of a voltage boost application. (2) When a surge voltage exceeding maximum rating is applied to the input terminal or when a voltage in excess of the input terminal voltage is applied to the output terminal, the circuit may be destroyed. Specially, in the latter case, great care is necessary. Further, if the input terminal shorts to GND in a state of normal operation, the output terminal voltage becomes higher than the input voltage (GND potential), and the electric charge of a chemical capacitor connected to the output terminal flows into the input side, which may cause the destruction of circuit. In these cases, take such steps as a zener diode and a general silicon diode are connected to the circuit, as shown in the following figure. (3) When the input voltage is too high, the power dissipation of three terminal regulator increases because of series regulator, so that the junction temperature rises. In such a case, it is recommended to reduce the power dissipation by inserting the power limiting resistor RSD in the input terminal, and to reduce the junction temperature as a result. The power dissipation PD of IC is expressed in the following equation. If VIN' is reduced below the lowest voltage necessary for the IC, the parasitic oscillation will be caused according to circumstances. In determing the resistance value of RSD, design with margin should be made by making reference to the following equation. (4) Connect the input terminal and GND, and the output terminal and GND, by capacitor respectively. The capacitances should be determined experimentally because they depend on PCB patterns. In particular, adequate investigation should be made so that there is no problem even at time of high or low temperature. 13 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F (5) The molded plastic portion of this unit, measuring 5.5 mm (L) by 6.8 mm (W) by 2.5 mm (T), is more comapact compared to its equivalents TO-220. The GND fin extends directly out of the main body, and can be soldered directly to the ceramic circuit board, to significantly increase the power dissipation. For obtaining high reliability on the heat sink design of the regulator IC, it is generally required to derate more than 20% of maximum junction temperature (Tj max). Further, full consideration should be given to the installation of IC to the heat sink. Application Circuits (1) Voltage boost regulator (a) Voltage boost by use of zener diode (b) Voltage boost by use of resistor (c) Adjustable output regulator 14 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F (2) Current boost regulator 15 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F Package Dimensions 16 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F Package Dimensions 17 2001-06-08 TA7805,057,06,07,08,09,10,12,15,18,20,24F RESTRICTIONS ON PRODUCT USE 000707EBA · TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc.. · The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer’s own risk. · The products described in this document are subject to the foreign exchange and foreign trade laws. · The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. · The information contained herein is subject to change without notice. 18 2001-06-08