78 Series Regulators 1A Output 78 series Regulators 500mA Output 78 series Regulators BA78□□Series,BA78M□□Series No.12019ECT01 ●Description BA78□□, BA78M□□ series are three-terminal regulators available with several fixed output voltages. It supplies the stable fixes voltage from unstable direct input voltage. The useful output voltage lineup is 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V with 0.5A / 1A current ability. They have nearly same electric characteristics as competitor products and cover a wide range of application. ●Features 1) Built-in over-current protection circuit and thermal shutdown circuit 2) High ripple rejection 3) Available TO220CP-3, TO252-3 package to a wide range application 4) Compatible replacement to competitor products 5) Various voltage lineup (5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V) ●Applications Fixed voltage power supply for TV, Audio components, etc ●Line up ■1A BA78□□Series Part Number 5V 6V 7V 8V 9V 10V 12V 15V 18V 20V 24V Package BA78□□CP ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO220CP-3 BA78□□FP ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO252-3 ■0.5A BA78M□□Series Part Number 5V 6V 7V 8V 9V 10V 12V 15V 18V 20V 24V Package BA78M□□CP ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO220CP-3 BA78M□□FP ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO252-3 ●Output Voltage and Marking Part Number：BA78□□□□ (1A) Part Number：BA78M□□□□ (0.5A) a b a b Symbol assignment of output voltage Symbol assignment of output voltage □□ Output voltage(V) □□ Output voltage(V) □□ Output voltage(V) □□ Output voltage(V) 05 5.0V typ. 12 12V typ. 05 5.0V typ. 12 12V typ. 06 6.0V typ. 15 15V typ. 06 6.0V typ. 15 15V typ. a 07 7.0V typ. 18 18V typ. a 07 7.0V typ. 18 18V typ. 08 8.0V typ. 20 20V typ. 08 8.0V typ. 20 20V typ. 09 9.0V typ. 24 24V typ. 09 9.0V typ. 24 24V typ. 10 10.0V typ. 10 10.0V typ. Package Package CP：TO220CP-3 CP：TO220CP-3 b b FP：TO252-3 FP：TO252-3 www.rohm.com 1/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Absolute Maximum Rating (Ta=25℃) BA78□□CP/FP, BA78M□□CP/FP Parameter Symbol Limits Unit Power supply voltage Vin 35 V TO220CP-3 2 *1 Power Dissipation 1 Pd1 W TO252-3 1 *1 TO220CP-3 22 *2 Power Dissipation 2 Pd2 W TO252-3 10 *2 BA78□□ 1 *3 Output Current Io A BA78□□M 0.5 *3 Operating Temperature Range Topr -40～+85 ℃ Storage Temperature Range Tstg -55～+150 ℃ Operating Junction Temperature Range Tj -40～+150 ℃ *1 Derating in done 16mW/℃(TO220CP-3), 8mW/℃(TO252-3) for temperatures above Ta=25℃ *2 Derating in done 176mW/℃(TO220CP-3), 80mW/℃(TO252-3) for temperatures above Ta=25℃, Mounted on infinity Alminium heat sink. *3 Pd,ASO and Tjmax(150℃) should not be exceeded. ●Operating Conditions(Ta=25℃, Pd should not be exceeded) BA78□□CP/FP BA78M□□CP/FP Parameter Symbol Min. Max. Unit. Parameter Symbol Min. Max. Unit. BA7805 7.5 25 BA78M05 7.5 25 BA7806 8.5 21 BA78M06 8.5 21 BA7807 9.5 22 BA78M07 9.5 22 BA7808 10.5 23 BA78M08 10.5 23 BA7809 11.5 26 BA78M09 11.5 26 Input Input BA7810 Vin 12.5 25 V BA78M10 Vin 12.5 25 V Voltage Voltage BA7812 14.5 27 BA78M12 14.5 27 BA7815 17.5 30 BA78M15 17.5 30 BA7818 21 33 BA78M18 21 33 BA7820 23 33 BA78M20 23 33 BA7824 27 33 BA78M24 27 33 Output Current Io - 1 A Output Current Io - 0.5 A www.rohm.com 2/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Electrical Characteristics BA78M□□CP/FP (Ta=25℃,Vin=10V(05),11V(06),13V(07),14V(08),15V(09),16V(10),19V(12),23V(15),27V(18),29V(20),33V(24), Io＝350mA unless otherwise specified) Limit Parameter Symbol Type Unit Condition Min Typ Max 05 4.8 5.0 5.2 06 5.75 6.0 6.25 07 6.7 7.0 7.3 08 7.7 8.0 8.3 09 8.6 9.0 9.4 Output Voltage 1 Vo1 10 9.6 10.0 10.4 V Io=350mA 12 11.5 12.0 12.5 15 14.4 15.0 15.6 18 17.3 18.0 18.7 20 19.2 20.0 20.8 24 23.0 24.0 25.0 05 4.75 - 5.25 Vin=7.5～20V, Io=5mA～350mA 06 5.7 - 6.3 Vin=8.5～21V, Io=5mA～350mA 07 6.65 - 7.35 Vin=9.5～22V, Io=5mA～350mA 08 7.6 - 8.4 Vin=10.5～23V, Io=5mA～350mA 09 8.55 - 9.45 Vin=11.5～24V, Io=5mA～350mA Output Voltage 2 Vo2 10 9.5 - 10.5 V Vin=12.5～25V, Io=5mA～350mA 12 11.4 - 12.6 Vin=15～27V, Io=5mA～350mA 15 14.25 - 15.75 Vin=17.5～30V, Io=5mA～350mA 18 17.1 - 18.9 Vin=21～33V, Io=5mA～350mA 20 19.0 - 21.0 Vin=23～33V, Io=5mA～350mA 24 22.8 - 25.2 Vin=27～33V, Io=5mA～350mA 05 - 3 100 Vin=7～25V, Io=200mA 06 - 3 100 Vin=8～25V, Io=200mA 07 - 4 100 Vin=9～25V, Io=200mA 08 - 4 100 Vin=10.5～25V, Io=200mA 09 - 4 100 Vin=11.5～26V, Io=200mA Line Regulation 1 Reg.I1 10 - 5 100 mV Vin=12.5～28V, Io=200mA 12 - 5 100 Vin=14.5～30V, Io=200mA 15 - 6 100 Vin=17.5～30V, Io=200mA 18 - 7 100 Vin=21～33V, Io=200mA 20 - 8 100 Vin=23～33V, Io=200mA 24 - 10 100 Vin=27～33V, Io=200mA 05 - 1 50 Vin=8～12V, Io=200mA 06 - 1 50 Vin=9～25V, Io=200mA 07 - 1 50 Vin=10～25V, Io=200mA 08 - 1 50 Vin=11～25V, Io=200mA 09 - 2 50 Vin=12～25V, Io=200mA Line Regulation 2 Reg.I2 10 - 2 50 mV Vin=14～26V, Io=200mA 12 - 3 50 Vin=16～30V, Io=200mA 15 - 3 50 Vin=20～30V, Io=200mA 18 - 3 50 Vin=24～33V, Io=200mA 20 - 4 50 Vin=24～33V, Io=200mA 24 - 5 50 Vin=28～33V, Io=200mA 05 62 78 - 06 60 74 - 07 57 71 - 08 56 69 - 09 56 67 - Ripple Rejection R.R. 10 56 66 - dB ein=1Vrms, f=120Hz, Io=100mA 12 55 63 - 15 54 60 - 18 53 58 - 20 53 58 - 24 50 55 - 05 - -1.0 - Temperature 06/07/08/09/10/12 - -0.5 - Coefficient of Tcvo mV/℃ Io=5mA, Tj=0～125℃ 15/18 - -0.6 - Output Voltage 20/24 - -0.7 - Peak Output Current Io-p common - 875 - mA Tj=25℃ Dropout Voltage Vd common - 2.0 - V Io=500mA www.rohm.com 3/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Electrical Characteristics BA78M□□CP/FP (Ta=25℃,Vin=10V(05),11V(06),13V(07),14V(08),15V(09),16V(10),19V(12),23V(15),27V(18),29V(20),33V(24),Io＝350mA unless otherwise specified) Limit Parameter Symbol Type Unit Condition Min Typ Max 05 - 20 100 06 - 20 120 07 - 20 140 08 - 20 160 09 - 20 180 Load Regulation 1 Reg.L1 10 - 20 200 mV Io=5mA～500mA 12 - 20 240 15 - 20 300 18 - 20 360 20 - 20 400 24 - 20 480 05 - 10 50 06 - 10 60 07 - 10 70 08 - 10 80 09 - 10 90 Load Regulation 2 Reg.L2 10 - 10 100 mV Io=5mA～200mA 12 - 10 120 15 - 10 150 18 - 10 180 20 - 10 200 24 - 10 240 05 - 40 - 06 - 60 - 07 - 70 - 08 - 80 - 09 - 90 - Output Noise Vn 10 - 100 - µV f=10Hz～100kHz Voltage 12 - 110 - 15 - 130 - 18 - 140 - 20 - 150 - 24 - 170 - Bias Current Ib common - 4.5 6.0 mA Io=0mA Bias Current Change1 Ib1 common - - 0.5 mA Io=5mA～350mA 05 - - 0.8 Vin:8～25V, Io=200mA 06 - - 0.8 Vin:9～25V, Io=200mA 07 - - 0.8 Vin:10～25V, Io=200mA 08 - - 0.8 Vin:10.5～25V, Io=200mA 09 - - 0.8 Vin:12～25V, Io=200mA Bias Current Change 2 Ib2 10 - - 0.8 mA Vin:13～25V, Io=200mA 12 - - 0.8 Vin:14.5～30V, Io=200mA 15 - - 0.8 Vin:17.5～30V, Io=200mA 18 - - 0.8 Vin:21～33V, Io=200mA 20 - - 0.8 Vin:23～33V, Io=200mA 24 - - 0.8 Vin:27～33V, Io=200mA Short-Circuit 05/06/07/08 - 0.4 - Vin=25V Ios A Output Current 09/10/12/15/18/20/24 - 0.17 - Vin=30V 05 - 9 - 06 - 10 - 07 - 11 - 08 - 12 - 09 - 13 - Output Resistance Ro 10 - 14 - mΩ f=1kHz 12 - 16 - 15 - 19 - 18 - 22 - 20 - 25 - 24 - 37 - www.rohm.com 4/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Electrical Characteristics BA78□□CP/FP (Ta=25℃,Vin=10V(05),11V(06),13V(07),14V(08),15V(09),16V(10),19V(12),23V(15),27V(18),29V(20),33V(24),Io=500mA unless otherwise specified) Limit Parameter Symbol Type Unit Condition Min Typ Max 05 4.8 5.0 5.2 06 5.75 6.0 6.25 07 6.7 7.0 7.3 08 7.7 8.0 8.3 09 8.6 9.0 9.4 Output Voltage 1 Vo1 10 9.6 10.0 10.4 V Io=500mA 12 11.5 12.0 12.5 15 14.4 15.0 15.6 18 17.3 18.0 18.7 20 19.2 20.0 20.8 24 23.0 24.0 25.0 05 4.75 - 5.25 Vin=7.5～20V, Io=5mA～1A 06 5.7 - 6.3 Vin=8.5～21V, Io=5mA～1A 07 6.65 - 7.35 Vin=9.5～22V, Io=5mA～1A 08 7.6 - 8.4 Vin=10.5～23V, Io=5mA～1A 09 8.55 - 9.45 Vin=11.5～26V, Io=5mA～1A Output Voltage 2 Vo2 10 9.5 - 10.5 V Vin=12.5～25V, Io=5mA～1A 12 11.4 - 12.6 Vin=15～27V, Io=5mA～1A 15 14.25 - 15.75 Vin=17.5～30V, Io=5mA～1A 18 17.1 - 18.9 Vin=21～33V, Io=5mA～1A 20 19.0 - 21.0 Vin=23～33V, Io=5mA～1A 24 22.8 - 25.2 Vin=27～33V, Io=5mA～1A 05 - 3 100 Vin=7～25V, Io=500mA 06 - 4 120 Vin=8～25V, Io=500mA 07 - 5 140 Vin=9～25V, Io=500mA 08 - 5 160 Vin=10.5～25V, Io=500mA 09 - 6 180 Vin=11.5～26V, Io=500mA Line Regulation 1 Reg.I1 10 - 7 200 mV Vin=12.5～27V, Io=500mA 12 - 8 240 Vin=14.5～30V, Io=500mA 15 - 9 300 Vin=17.5～30V, Io=500mA 18 - 10 360 Vin=21～33V, Io=500mA 20 - 12 400 Vin=23～33V, Io=500mA 24 - 15 480 Vin=27～33V, Io=500mA 05 - 1 50 Vin=8～12V, Io=500mA 06 - 2 60 Vin=9～13V, Io=500mA 07 - 2 70 Vin=10～15V, Io=500mA 08 - 3 80 Vin=11～17V, Io=500mA 09 - 4 90 Vin=13～19V, Io=500mA Line Regulation 2 Reg.I2 10 - 4 100 mV Vin=14～20V, Io=500mA 12 - 5 120 Vin=16～22V, Io=500mA 15 - 5 150 Vin=20～26V, Io=500mA 18 - 5 180 Vin=24～30V, Io=500mA 20 - 7 200 Vin=26～32V, Io=500mA 24 - 10 240 Vin=30～33V, Io=500mA 05 62 78 - 06 59 73 - 07 57 69 - 08 56 65 - 09 56 64 - ein=1Vrms, f=120Hz, Ripple Rejection R.R. 10 55 64 - dB Io=100mA 12 55 63 - 15 54 62 - 18 53 61 - 20 53 60 - 24 50 58 - 05 - -1.0 - Temperature 06/07/08/09/10/12 - -0.5 - Coefficient of Tcvo mV/℃ Io=5mA, Tj=0～125℃ 15/18 - -0.6 - Output Voltage 20/24 - -0.7 - Peak Output Current Io-p common - 1.7 - A Tj=25℃ Dropout Voltage Vd common - 2.0 - V Io=1A www.rohm.com 5/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Electrical Characteristics BA78□□CP/FP (Ta=25℃,Vin=10V(05),11V(06),13V(07),14V(08),15V(09),16V(10),19V(12),23V(15),27V(18),29V(20),33V(24),Io=500mA unless otherwise specified) Limit Parameter Symbol Type Unit Condition Min Typ Max 05 - 15 100 06 - 16 120 07 - 17 140 08 - 19 160 09 - 20 180 Load Regulation 1 Reg.L1 10 - 21 200 mV Io=5mA～1A 12 - 23 200 15 - 27 300 18 - 30 360 20 - 32 400 24 - 37 480 05 - 5 50 06 - 6 60 07 - 6 70 08 - 7 80 09 - 8 90 Load Regulation 2 Reg.L2 10 - 8 90 mV Io=250mA～750mA 12 - 10 100 15 - 10 150 18 - 12 180 20 - 14 200 24 - 15 240 05 - 40 - 06 - 60 - 07 - 70 - 08 - 80 - 09 - 90 - Output Noise Vn 10 - 100 - µV f=10Hz～100kHz Voltage 12 - 110 - 15 - 125 - 18 - 140 - 20 - 150 - 24 - 180 - Bias Current Ib common - 4.5 8.0 mA Io=0mA Bias Current Change 1 Ib1 common - - 0.5 mA Io=5mA～1A 05 - - 0.8 Vin:8～25V, Io=500mA 06 - - 0.8 Vin:8.5～25V, Io=500mA 07 - - 0.8 Vin:9.5～25V, Io=500mA 08 - - 0.8 Vin:10.5～25V, Io=500mA 09 - - 0.8 Vin:11.5～26V, Io=500mA Bias Current Change 2 Ib2 10 - - 0.8 mA Vin:12.5～27V, Io=500mA 12 - - 0.8 Vin:14.5～30V, Io=500mA 15 - - 0.8 Vin:17.5～30V, Io=500mA 18 - - 0.8 Vin:21～33V, Io=500mA 20 - - 0.8 Vin:23～33V, Io=500mA 24 - - 0.8 Vin:27～33V, Io=500mA Short-Circuit 05/06/07/08 - 0.6 - Vin=25V Ios A Output Current 09/10/12/15/18/20/24 - 0.3 - Vin=30V 05 - 9 - 06 10 - 07 10 - 08 10 - 09 - 10 - Output Resistance Ro 10 - 11 - mΩ f=1kHz 12 - 12 - 15 - 14 - 18 - 17 - 20 - 19 - 24 - 27 - www.rohm.com 6/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●BA78M□□ Characteristics data(Ta=25℃, Vin=10V(05), 14V(08), 23V(15) unless otherwise specified) 20 20 20 Ta=25℃ Io=0mA Ta=25℃ Io=350mA TTaa==2255℃℃ IoIo==550000mmAA 15 15 15 BA78M15 BA78M15 BA78M15 Vo [V]10 Vo [V] 10 Vo [V]10 BA78M08 BA78M08 BA78M08 5 5 5 BA78M05 BA78M05 BA78M05 0 0 0 0 5 10 15 20 25 30 0 5 10 15 20 25 30 0 5 10 15 20 25 30 Vin [V] Vin [V] Vin [V] Fi g.1 Line Regulation (Io=0mA) Fig. 2 Line Regulation (Io=350mA) Fig. 3 Line Regulation(Io=500mA) 6 20 2.0 TTaa==2255℃℃ IIoo==00mmAA Ta=25℃ Ta=25℃ BBAA7788MM0055 5 BA78M15 15 1.5 BA78M15 4 BA78M05 BA78M08 BBAA7788MM0088 Ib [mA] 3 BBAA7788MM1155 Vo [V]10 BA78M08 Io-p [A]1.0 2 BA78M05 5 0.5 1 0 0 0.0 0 5 10 15 20 25 30 0.0 0.5 1.0 1.5 2.0 0 5 10 15 20 25 30 Vin [V] Io [A] Vin [V] FFiigg..44 VViInN -- IIbo Fig.5 Load Regulation Fig.6 Peak Output Current 2.0 1.0 100 Ta=25℃ Ta=25℃ BA78M05 0.8 80 1.5 BA78M05 BA78M08 BA78M05 BA78M15 BA78M08 0.6 60 Vd [V] 1.0 BA78M15 Ios [A] 0.4 R.R. [dB] 40 BA78M08 BA78M15 0.5 0.2 20 Ta=25℃ Io=100mA 0.0 0.0 00 0 0.1 0.2 0.3 0.4 0.5 0 5 10 15 20 25 30 1100 110000 11K00 0 1100K00 0 1100000K00 1010M0000 Io [A] Vin [V] Frequency［Hz］ Frequency [Hz] Fig.7 Dropout Voltage Fig.8 Short – Circuit Output Current Fig.9 Ripple Rejection Ratio 1.5 Io=5mA 6 Io=0mA 6 Ta=25℃ BA78M15 BA78M15 1.0 5 5 BA78M05 BA78M15 0.5 4 4 %] BAB7A87M8M080 8 BA78M08 ⊿Vo/Vo [ 0.0 BA78M15 Ib[mA] 3 BA78M05 Ib [mA] 3 BA78M05 -0.5 2 2 BA78M08 BA78M05 -1.0 1 1 -1.5 0 0 -40 -20 0 20 40 60 80 100 -40 -20 0 20 40 60 80 100 0 0.1 0.2 0.3 0.4 0.5 Ta [℃] Ta[℃] Io [A] Fig.10 Ta - Vo Fig.11 Ta - Ib Fig.12 Io - Ib www.rohm.com 7/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●BA78□□ Characteristics data (Ta=25℃, Vin=10V(05), 14V(08), 23V(15) unless otherwise specified) 20 20 20 Ta=25℃ Io=0mA Ta=25℃ Io=500mA Ta=25℃ Io=1A 15 15 15 BA7815 BA7815 BA7815 Vo [V]10 Vo [V] 10 Vo [V] 10 BA7808 BA7808 BA7808 5 5 5 BA7805 BA7805 BA7805 0 0 0 0 5 10 15 20 25 30 0 5 10 15 20 25 30 0 5 10 15 20 25 30 Vin [V] Vin [V] Vin [V] Fig.13 Line Regulation (Io=0mA) Fig.14 Line Regulation (Io=500mA) Fig15. Line Regulation (Io=1A) 6 20 2.0 Ta=25℃ Io=0mA Ta=25℃ Ta=25℃ 5 BA7805 BA7815 15 1.5 4 BA7805 Ib [mA] 3 BAB7A870881 5 Vo [V] 10 BA7808 Io-p [A] 1.0 BA7808 2 BA7805 BA7815 5 0.5 1 0 0 0.0 0 5 10 15 20 25 30 0.0 0.5 1.0 1.5 2.0 0 5 10 15 20 25 30 Vin [V] Io [A] Vin [V] F ig.16 Vin - Ib Fig.17 Load Regulation Fig.18 Peak Output Current 2.0 2 100 Ta=25℃ Ta=25℃ BA7805 BA7805 80 1.5 1.5 BA7808 BA7805 BA7815 Vd [V] 1.0 BBAA77880185 os [A] 1 R. [dB] 60 BA7808 BA7815 I R. 40 0.5 0.5 20 Ta=25℃ Io=100mA 0.0 0 00 0 0.2 0.4 0.6 0.8 1 0 5 10 15 20 25 30 1010 110000 110K0 0 1100K0 0 0 1100000K00 1 010M0000 Io [A] Vin [V] Frequency [Hz] Fig.19 Dropout Voltage Fig.20 Short – Circuit Output Current Fig.21 Ripple Rejection Ratio 1.5 6 6 Io=5mA IIoo==00mmAA BA7815 Ta=25℃ BA7815 1.0 5 5 BA7815 0.5 4 4 ΔVo/Vo [%] 0.0 BA7815 Ib [mA] 3 BABB7AA877088800 58 Ib [mA] 3 BA7805 BA7808 -0.5 2 2 BA7805 BA7808 BA7805 -1.0 1 1 -1.5 0 0 -40 -20 0 20 40 60 80 100 -40 -20 0 20 40 60 80 100 0 0.2 0.4 0.6 0.8 1 Ta [℃] Ta [℃] Io [A] Fig.22 Ta - Vo Fig.23 Ta - Ib Fig.24 Io - Ib www.rohm.com 8/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Internal Circuit Structural Diagram INPUT R4 R10 R8 R9 R13 D2 Q8 Q9 Q12 Q16 Q17 Q15 R21 R12 R5 R17 R11 Q10 OUTPUT Q6 Q13 Q5 R15 R20 R6 R2 C1 R16 R1 Q11 D1 Q18 Q7 Q4 R19 Q1 Q3 Q14 Q2 R14 R7 R22 R18 R3 D3 COMMON FIN 1 2 3 TO220CP-3 TO252-3 PIN No. Symbol Function PIN No. Symbol Function 1 INPUT Input terminal 1 INPUT Input terminal 2 COMMON Ground terminal 2 N.C. Non connection terminal 3 OUTPUT Output terminal 3 OUTPUT Output terminal FIN COMMON Ground terminal ●Protection Circuit 6 Vin=10V (1)Over-current protection circuit BA7805CP 5 When the maximum rating current or more is rushed, it controls the V] current ability and protects the IC from destruction. Vo [4 e : 3 ag ut volt2 p ut1 O 0 1 2 Output Current : IO[A] (2) Thermal shutdown circuit 6 When the chip temperature of IC exceeds the setting temperature, the IC goes OFF, and it controls the IC not to be destroyed by the heat generation. 5 V] It can be restored by being lowered the chip temperature of IC below the Vo [ 4 Vin=10V setting temperature. age : 3 BA7805CP ut Volt 2 p ut 1 O 0 25 50 75 100 125 150 175 200 Chip Junction temperature : Tj [℃] (3) Safety operation area control circuit It controls the output current in inverse proportion ratio to voltage difference 2 (WIti nphpreuontt- evocoutlsttpa tguhete) . d ICiff ebrye nccoen btreoclloinmge tsh eb igcugrerre, ntht ea IbCil iwtyi lal bcec odredsintrgo ytoe dt hine rvuoslhta cguer rleenvte. l. nt : I[A] O-P 1.5 TBjA=72850℃5 CP curre 1 ut p out m 0.5 mu xi Ma 0 10 20 30 40 Input-Output voltage difference: Vin-Vo [V] www.rohm.com 9/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Thermal design Refer to the following thermal derating curves (Fig. 25, 26), when using in the status of Ta=25℃ or more. The characteristic of IC is greatly related to the operating temperature. When it is used in over maximum junction temperature, the elements inside IC might become weaker and be destroyed. It is recommended to take into consideration thermal of IC. Note that the temperatures are in the allowed temperature limits and operated within Pd. It is necessary to operate it at junction temperature Tjmax or less to prevent IC from the thermal destruction. Please operate IC within permissible loss Pd because the junction temperature Tj might become considerably a high temperature even if ambient temperature Ta is normal temperature (25℃). Power consumption Pc(W) may be expressed by the equation shown below: Pc=(Vin-Vo)×Io+ Vin×Iｂ Vin : Input Voltage permissible loss Pd≧Pc Vo : Output Voltage Io : Output Current PdVinIb Io≦ Ib : Bias current VinVo Maximum Output current Io can be calculated in thermal design. MAX ・Calculation example Ex.1) Ta=85℃, Vin =7.5V, Vo=5.0V Using TO220CP-3 alone 1.047.54.5m θja=62.5℃/W→16mW/℃ Io≦ 7.55.0 Pd=1.04W at 85℃ Io≦400ｍA Be sure to use this IC within a power dissipation at the range of operating temperature. 25 12.5 (1) 22.0 (1) Mounted on infinity Alminium heat sinkθj-c=5.7(℃/W) (1) Mounted on infinity Alminium heat sinkθj-c=12.5 (℃/W) W] 20 (2) Using an IC aloneθj-a=62.5℃/W W] 10 (1) 10.0 (2) Using an IC aloneθj-a=125.0℃/W d[ d[ P P N: N: O 15 O 7.5 TI TI A A P P SI SI S 10 S 5 DI DI R R WE WE O 5 O 2.5 P P (2) 2.0 (2) 1.0 0 0 0 25 50 75 100 125 150 0 25 50 75 100 125 150 AMBIENT TEMPERATURE : Ta[℃] AMBIENT TEMPERATURE : Ta[℃] Fig.25 Thermal derating curve (TO220CP-3) Fig.26 Thermal derating curve (TO252-3) ●Terminal Setting and Cautions ・INPUT It is recommended that a capacitor (about 0.33uF) be inserted between INPUT and COMMON. The value of capacitor is designed suitable for the actual application. ・OUTPUT It is recommended that a capacitor (about 0.1uF) be inserted between OUTPUT and COMMON. A tantalum capacitor can also be used for this pin because insufficient capacitors may cause oscillation by a temperature change. ・COMMON Keep the no voltage drop between Ground level of set board and IC. When there is the voltage difference, setting voltage becomes inaccuracy and unstable. It is recommended to connect by wide, short pattern, and lower the inpedance. www.rohm.com 10/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Notes for use (1) Absolute Maximum Ratings While utmost care is taken to quality control of this product, any application that may exceed some of the absolute maximum ratings including the voltage applied and the operating temperature range may result in breakage. If broken, short-mode or open-mode may not be identified. So if it is expected to encounter with special mode that may exceed the absolute maximum ratings, it is requested to take necessary safety measures physically including insertion of fuses. (2) Ground voltage Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state. Furthermore, check to be sure no terminals are at a potential lower than the GND voltage including an actual electric transient. (3) Thermal design When you do the kind of use which exceeds Pd, It may be happened to deteriorating IC original quality such as decrease of electric current ability with chip temperature rise. Do not exceed the power dissipation (Pd) of the package specification rating under actual operation, and please design enough temperature margins. (4) Short-circuiting between terminals, and mismounting When mounting to pc board, care must be taken to avoid mistake in its orientation and alignment. Failure to do so may result in IC breakdown. Short-circuiting due to foreign matters entered between output terminals, or between output and power supply or GND may also cause breakdown. (5) Operation in Strong electromagnetic field Be noted that using the IC in the strong electromagnetic radiation can cause operation failures. (6) Inspection with the IC set to a pc board If a capacitor must be connected to the pin of lower impedance during inspection with the IC set to a pc board, the capacitor must be discharged after each process to avoid stress to the IC. For electrostatic protection, provide proper grounding to assembling processes with special care taken in handling and storage. When connecting to jigs in the inspection process, be sure to turn OFF the power supply before it is connected and removed. (7) Input to IC terminals This is a monolithic IC with P+ isolation between P-substrate and each element as illustrated below. This P-layer and the N-layer of each element form a P-N junction, and various parasitic element are formed. If a resistor is joined to a transistor terminal as shown in Fig 28. ○P-N junction works as a parasitic diode if the following relationship is satisfied; GND>Terminal A (at resistor side), or GND>Terminal B (at transistor side); and ○if GND>Terminal B (at NPN transistor side), a parasitic NPN transistor is activated by N-layer of other element adjacent to the above-mentioned parasitic diode. The structure of the IC inevitably forms parasitic elements, the activation of which may cause interference among circuits, and/or malfunctions contributing to breakdown. It is therefore requested to take care not to use the device in such manner that the voltage lower than GND (at P-substrate) may be applied to the input terminal, which may result in activation of parasitic elements. (8) Ground wiring pattern If small-signal GND and large-current GND are provided, It will be recommended to separate the large-current GND pattern from the small-signal GND pattern and establish a single ground at the reference point of the set PCB so that resistance to the wiring pattern and voltage fluctuations due to a large current will cause no fluctuations in voltages of the small-signal GND. Pay attention not to cause fluctuations in the GND wiring pattern of external parts as well. (9) Thermal shutdown circuit A temperature control circuit is built in the IC to prevent the damage due to overheat.Therefore, the output is turned off when the thermal circuit works and is turned on when the temperature goes down to the specified level. But, built-in the IC a temperature control circuit to protect itself, and avoid the design used the thermal protection. (10) Over current protection circuit The over-current protection circuits are built in at output, according to their respective current outputs and prevent the IC from being damaged when the load is short-circuited or over-current. But, these protection circuits are effective for preventing destruction by unexpected accident. When it’s in continuous protection circuit moving period don’t use please. And for ability, because this chip has minus characteristic, be careful for heat plan. (11) There is a possibility to damage an internal circuit or the element when Vin and the voltage of each terminal reverse in the application. For instance, Vin is short-circuited to GND etc. with the charge charged to an external capacitor. Please use the capacitor of the output terminal with 1000μF or less. Moreover, the Vin series is recommended to insert the diode of the by-pass the diode of the backflow prevention or between each terminal and Vin. Pin B Bypass diode Resistor Transistor (NPN) Backflow prevention diode Pin A Pin B B B C C E E VCC Parasitic element Output terminal N P+ N P P+ N N P+ N P P+ N Other adjaceGnNt De lements Pin A P substrate P substrate Parasitic element GND Parasitic element GND GND Parasitic element Fig.27 Bypass Diode Fig.28 Simplified structure of monorisic IC www.rohm.com 11/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

BA78□□Series,BA78M□□Series Technical Note ●Ordering part number B A 7 8 M 0 5 F P - E 2 Part No Part No Output Output Package Packaging and forming specification Current Voltage CP :TO220CP-3 E2: Embossed tape and reel None：1A 05 : 5V FP :TO252-3 (TO220CP-3, TO252-3) M ：0.5A ～ 24 : 24V TO220CP-3 <Tape and Reel information> φ3.2±0.1 10.0+-00..13 4.5±0.12.8+-00..21 Tape Embossed carrier tape Quantity 500pcs +0.415.2-0.2±12.00.2±8.00.2 Dofi rfeecetdion E(2Treheel odnir ethcteio lne fits h tahned 1 apnind oyfo pur opduull cot uist tahte t htaep leo woenr t hleeft rwighhet nh aynodu hold ) ±5.610.2±1.00.2 1 20.832(±00.5.185) 0.422±.805.1 1.3 2.46 2.54 1 2 3 1pin Direction of feed (Unit : mm) Reel ∗ Order quantity needs to be multiple of the minimum quantity. TO252-3 <Tape and Reel information> 6.5±0.2 Tape Embossed carrier tape ±1.50.2 5.F1I-+N00..12 C0.5 2.3±0.2 0.5±0.1 QDofiu rfeaecnettdiiotyn 2E(02T0h0ep dcisrection is the 1pin of product is at the lower left when you hold ) reel on the left hand and you pull out the tape on the right hand ±5.50.2 ±9.50.5 1 0.8 2 3 1.5 2.5 0.65 0.65 0.5±0.1 0.75 2.3±0.2 2.3±0.2 1.0±0.2 1pin Direction of feed (Unit : mm) Reel ∗ Order quantity needs to be multiple of the minimum quantity. www.rohm.com 12/12 2012.03 - Rev.C © 2012 ROHM Co., Ltd. All rights reserved.

DDaattaasshheeeett Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual ambient temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice - GE Rev.002 © 2014 ROHM Co., Ltd. All rights reserved.

DDaattaasshheeeett Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label QR code printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with ROHM representative in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable for infringement of any intellectual property rights or other damages arising from use of such information or data.: 2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the information contained in this document. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice - GE Rev.002 © 2014 ROHM Co., Ltd. All rights reserved.

DDaattaasshheeeett General Precaution 1. Before you use our Products, you are requested to carefully read this document and fully understand its contents. ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of a ny ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this document is current as of the issuing date and subj ect to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sale s representative. 3. The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate an d/or error-free. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or concerning such information. Notice – WE Rev.001 © 2014 ROHM Co., Ltd. All rights reserved.

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