1A Standard Negative Voltage Regulator LM79XX 1A Standard Negative Voltage Regulator General Description • The LM79XX series is three terminal standard negative voltage regulator designed for a wide range of applications that required supply current up to 1A. • The LM79XX series is available in 11 fixed output voltage: -5V, -6V, -7V, -8V, -9V, -12V, -15V, -18V, -20V and -24V. D-PAK (TO-252) • The LM79XX series provides internal current limiting, thermal shut-down and safe-area protection which make it essentially indestructible. • The LM79XX series is available in TO-252, TO-220F packages. . Features • • • • TO-220F Output current up to 1A Overload shutdown protection Short circuit limiting RoHS compliant Applications • • • • Linear Regulator CMOS TTL IC Power Supply TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com Tel: Fax: (800)-TAITRON (800)-824-8766 (800)-TAITFAX (800)-824-8329 (661)-257-6060 (661)-257-6415 Rev. A/JH Page 1 of 19 1A Standard Negative Voltage Regulator LM79XX Ordering Information LM79 □□ □ - 93 - □□ Circuit Type Io=1A Packing Code TU: Tube, RoHS UG: Tube, Halogen Free Typical Output Voltage 05: -5V; 06: -6V; 07: -7V; 08: -8V; 09: -9V; 10: -10V 12: -12V; 15: -15V; 18: -18V; 20: -20V; 24: -24V Factory Location Code Outline F: TO-220F D: D-PAK (TO-252) Pin Configuration 1: GND 2: INPUT 3: OUTPUT D-PAK(TO-252) 1: GND 2: INPUT 3: OUTPUT TO-220F Rev. A/JH www.taitroncomponents.com Page 2 of 19 1A Standard Negative Voltage Regulator LM79XX Equivalent Circuit Absolute Maximum Ratings (Ta=25 °C) Symbol VIN IOUT Description Input Voltage LM7905~LM7915 -35 LM7918~LM7924 -40 Output Current PD1 Power Dissipation-1 (No Heat-sink) PD2 Power Dissipation-2 (Infinite Heat-sink) Tj Ratings 1.0 D-PAK 1.3 TO-220F 2.0 D-PAK 12.0 TO-220F 20.8 Unit V A W W Operating Junction Temperature -30 ~ +150 °C TOPR Operating Temperature -30 ~ +75 °C TSTG Storage Temperature -55 ~ +150 °C Rev. A/JH www.taitroncomponents.com Page 3 of 19 1A Standard Negative Voltage Regulator LM79XX Electrical Characteristics LM7905 (Unless otherwise specified, VIN=-10V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -5.2 -5.0 -4.8 V -12V≤VIN≤-8V Tj=25°C - 5 50 mV -25V≤VIN≤-7V Tj=25°C - 10 100 mV 5mA≤IOUT≤1.5A Tj=25°C - 10 100 mV 0.25A≤IOUT≤0.75A Tj=25°C - 3 50 mV C-1 C-1 Output Voltage C-1 -20V≤VIN≤-7V 5mA≤IOUT≤1A -5.25 -5.0 -4.75 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -25V≤VIN≤-8V - 0.1 1.3 5mA≤IOUT≤1A - 0.05 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz Ta=25°C - 100 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.4 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 4 of 19 1A Standard Negative Voltage Regulator LM79XX LM7906 (Unless otherwise specified, VIN=-11V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -6.25 -6.0 -5.75 V -13V≤VIN≤-9V Tj=25°C - 5 60 mV -25V≤VIN≤-8V Tj=25°C - 10 120 mV 5mA≤IOUT≤1.5A Tj=25°C - 10 120 mV 0.25A≤IOUT≤0.75A Tj=25°C - 3 60 mV C-1 C-1 Output Voltage C-1 -21V≤VIN≤-9V 5mA≤IOUT≤1A -6.3 -6.0 -5.7 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -25V≤VIN≤-9V - - 1.3 5mA≤IOUT≤1A - - 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 130 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.5 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 5 of 19 1A Standard Negative Voltage Regulator LM79XX LM7907 (Unless otherwise specified, VIN=-12V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -7.28 -7.0 -6.72 V -15V≤VIN≤-10V Tj=25°C - 10 70 mV -25V≤VIN≤-9V Tj=25°C - 45 140 mV 5mA≤IOUT≤1.5A Tj=25°C - 20 140 mV 0.25A≤IOUT≤0.75A Tj=25°C - 7 70 mV C-1 C-1 Output Voltage C-1 -22V≤VIN≤-9V 5mA≤IOUT≤1A -7.35 - -6.65 V IQ Quiescent Current C-1 Tj=25°C - 4.3 8.0 mA ∆IQ Quiescent Current Change C-1 -25V≤VIN≤-9V - - 1.0 5mA≤IOUT≤1A - - 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 49 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 60 67 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.9 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 6 of 19 1A Standard Negative Voltage Regulator LM79XX LM7908 (Unless otherwise specified, VIN=-14V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -8.3 -8.0 -7.7 V -17V≤VIN≤-11V Tj=25°C - 5 80 mV -25V≤VIN≤-10.5V Tj=25°C - 10 100 mV 5mA≤IOUT≤1.5A Tj=25°C - 12 160 mV 0.25A≤IOUT≤0.75A Tj=25°C - 4 80 mV C-1 C-1 Output Voltage C-1 -23V≤VIN≤-11.5V 5mA≤IOUT≤1A -8.4 -8.0 -7.6 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -25V≤VIN≤-11.5V - 0.1 1.0 5mA≤IOUT≤1A - 0.05 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 175 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.6 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 7 of 19 1A Standard Negative Voltage Regulator LM79XX LM7909 (Unless otherwise specified, VIN=-15V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -9.3 -9.0 -8.7 V -19V≤VIN≤-13V Tj=25°C - 5 90 mV -26V≤VIN≤-11.5V Tj=25°C - 10 100 mV 5mA≤IOUT≤1.5A Tj=25°C - 10 150 mV 0.25A≤IOUT≤0.75A Tj=25°C - 5 120 mV C-1 C-1 Output Voltage C-1 -24V≤VIN≤-11.5V 5mA≤IOUT≤1A -9.4 -9.0 -8.6 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -26.5V≤VIN≤-13V - 0.1 1.0 5mA≤IOUT≤1A - 0.05 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 180 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.7 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 8 of 19 1A Standard Negative Voltage Regulator LM79XX LM7910 (Unless otherwise specified, VIN=-16V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -10.4 -10.0 -9.6 V -20V≤VIN≤-14V Tj=25°C - 5 100 mV -27V≤VIN≤-12.5V Tj=25°C - 10 110 mV 5mA≤IOUT≤1.5A Tj=25°C - 10 180 mV 0.25A≤IOUT≤0.75A Tj=25°C - 6 120 mV C-1 C-1 Output Voltage C-1 -25V≤VIN≤-12.5V 5mA≤IOUT≤1A -10.5 -10 -9.5 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -27.5V≤VIN≤-14V - 0.1 1.0 5mA≤IOUT≤1A - 0.05 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 190 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.7 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 9 of 19 1A Standard Negative Voltage Regulator LM79XX LM7912 (Unless otherwise specified, VIN=-18V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -12.5 -12 -11.5 V -22V≤VIN≤-16V Tj=25°C - 6 120 mV -30V≤VIN≤-14.5V Tj=25°C - 12 240 mV 5mA≤IOUT≤1.5A Tj=25°C - 12 240 mV 0.25A≤IOUT≤0.75A Tj=25°C - 4 120 mV C-1 C-1 Output Voltage C-1 -27V≤VIN≤-15.5V 5mA≤IOUT≤1A -12.6 -12 -11.4 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -30V≤VIN≤-15V - 0.1 1.0 5mA≤IOUT≤1A - 0.05 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 200 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.8 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 10 of 19 1A Standard Negative Voltage Regulator LM79XX LM7915 (Unless otherwise specified, VIN=-23V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -15.6 -15 -14.4 V -26V≤VIN≤-20V Tj=25°C - 6 150 mV -30V≤VIN≤-17.5V Tj=25°C - 12 300 mV 5mA≤IOUT≤1.5A Tj=25°C - 12 300 mV 0.25A≤IOUT≤0.75A Tj=25°C - 4 150 mV C-1 C-1 Output Voltage C-1 -30V≤VIN≤-18V 5mA≤IOUT≤1A -15.75 -15 -14.25 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -30V≤VIN≤-17.5V - 0.1 1.0 5mA≤IOUT≤1A - 0.05 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 250 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -0.9 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 11 of 19 1A Standard Negative Voltage Regulator LM79XX LM7918 (Unless otherwise specified, VIN=-27V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -18.7 -18 -17.3 V -30V≤VIN≤-24V Tj=25°C - 8 180 mV -33V≤VIN≤-21V Tj=25°C - 15 360 mV 5mA≤IOUT≤1.5A Tj=25°C - 15 360 mV 0.25A≤IOUT≤0.75A Tj=25°C - 5 180 mV C-1 C-1 Output Voltage C-1 -33V≤VIN≤-22.5V 5mA≤IOUT≤1A -18.85 -18 -17.15 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -33V≤VIN≤-22V - - 1.0 5mA≤IOUT≤1A - - 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 300 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -1.0 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 12 of 19 1A Standard Negative Voltage Regulator LM79XX LM7920 (Unless otherwise specified, VIN=-30V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -20.8 -20 -19.2 V -32V≤VIN≤-26V Tj=25°C - 10 180 mV -35V≤VIN≤-24V Tj=25°C - 18 360 mV 5mA≤IOUT≤1.5A Tj=25°C - 18 360 mV 0.25A≤IOUT≤0.75A Tj=25°C - 10 180 mV C-1 C-1 Output Voltage C-1 -35V≤VIN≤-24V 5mA≤IOUT≤1A -21 -20 -19 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -36.5V≤VIN≤-25V - - 1.0 5mA≤IOUT≤1A - - 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 350 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -1.0 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 13 of 19 1A Standard Negative Voltage Regulator LM79XX LM7924 (Unless otherwise specified, VIN=-33V, IOUT=0.5A, 0°C≤Tj≤125°C, CIN=2.2µF, COUT=1µF) Symbol VOUT ∆VLINE ∆VLOAD Description Output Voltage Line Regulation Load Regulation Test Circuit Test Conditions Min. Typ. Max. Unit C-1 Tj=25°C -25 -24 -23 V -36V≤VIN≤-30V Tj=25°C - 8 240 mV -38V≤VIN≤-27V Tj=25°C - 15 480 mV 5mA≤IOUT≤1.5A Tj=25°C - 15 480 mV 0.25A≤IOUT≤0.75A Tj=25°C - 5 240 mV C-1 C-1 Output Voltage C-1 -38V≤VIN≤-27V 5mA≤IOUT≤1A -25.2 -24 -22.5 V IQ Quiescent Current C-1 Tj=25°C - 3 6 mA ∆IQ Quiescent Current Change C-1 -38V≤VIN≤-27V - - 1.0 5mA≤IOUT≤1A - - 0.5 eN Output Noise Voltage C-2 10Hz≤f≤100KHz, Ta=25°C - 400 - µVrms RR Ripple Rejection Ratio C-3 IOUT=20mA, f=120Hz 54 60 - dB ISC Short-Circuit Current Limit C-1 Tj=25°C - 1.9 - A ∆VO/∆T Average Temperature Coefficient of VOUT C-1 IOUT=5mA - -1.0 - mV/℃ Dropout Voltage C-1 IOUT=1A Tj=25°C - 2.0 - V VOUT VD mA Rev. A/JH www.taitroncomponents.com Page 14 of 19 1A Standard Negative Voltage Regulator LM79XX Typical Test Circuit C-1 Standard Test Circuit Note: 1. To specify an output voltage, substitute voltage value for “XX”; 2. Required for stability. For value given, capacitor must be solid tantalum. If aluminum electrolytic is used, at least 10 times value shown should be selected. CI is required if regulator is located an appreciate distance from power supply filter. 3. To improve transient response. If large capacitors are used, a high current diode from input to output is needed. C-2 Output Noise Voltage Test Circuit Rev. A/JH www.taitroncomponents.com Page 15 of 19 1A Standard Negative Voltage Regulator LM79XX C-3 Ripple Rejection Ratio Test Circuit Typical Characteristics Curves Fig.2- VD vs. Tj Short Current Isc(A) Dropout Voltage VD (V) Fig.1- ISC vs. VIN Input Voltage VIN (V) Junction Temperature Tj (°C) Rev. A/JH www.taitroncomponents.com Page 16 of 19 1A Standard Negative Voltage Regulator LM79XX Fig.4- PD vs. Ta (TO-220F) Power Dissipation PD (W) Power Dissipation PD (W) Fig.3- PD vs. Ta (D-PAK) Ambient Temperature Ta (°C) Ambient Temperature Ta (°C) Dimensions in mm(inches) D-PAK (TO-252) Rev. A/JH www.taitroncomponents.com Page 17 of 19 1A Standard Negative Voltage Regulator LM79XX TO-220F Rev. A/JH www.taitroncomponents.com Page 18 of 19 1A Standard Negative Voltage Regulator LM79XX How to contact us: US HEADQUARTERS 28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162 Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415 Email: [email protected] Http://www.taitroncomponents.com TAITRON COMPONENTS MEXICO, S.A .DE C.V. BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P. 42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190 TAITRON COMPONETS INCORPORATED E REPRESENTAÇÕES DO BRASIL LTDA RUA DOMINGOS DE MORAIS, 2777, 2.ANDAR, SALA 24 SAÚDE - SÃO PAULO-SP 04035-001 BRAZIL Tel: +55-11-5574-7949 Fax: +55-11-5572-0052 TAITRON COMPONETS INCORPORATED, SHANGHAI REPRESENTATIVE OFFICE METROBANK PLAZA, 1160 WEST YAN’ AN ROAD, SUITE 1503, SHANGHAI, 200052, CHINA Tel: +86-21-5424-9942 Fax: +86-21-5424-9931 Rev. A/JH www.taitroncomponents.com Page 19 of 19