GM7900 GM7924 GM7905 GM7906 GM7908 GM7915 GM7918 GM7912 GM7905-TA3 GM7905-TB3

PRELIMINARY NEGATIVE VOLTAGE REGULATORS Output current up to 1.5A 3-Terminal Regulators Internal Thermal Overload Protection

GM7900 GM7900 PRELIMINARY NEGATIVE VOLTAGE REGULATORS Output current up to 1.5A 3-Terminal Regulators Internal Thermal Overload Protection Output Voltages -5V, -6V, -8V, -12V, -15V, -18V and -24V Offer in TO-220, TO-252 and TO-263 Internal Short-Circuit Current Limiting Output Transistor Safe-Area Compesation Direct replacements for LM79xx Connection Diagrams (Top View) 3 OUTPUT 2 1 INPUT GND TO-263 (D2PAK) The GM7900 GM7900 series are classic regulators useful in a wide range of applications. For example, you can use them for local on-card regulation to eliminate the distribution problems associated with single point regulation. (Top View) 3 OUTPUT 2 1 INPUT GND TO-220 3-LEAD The wide range of output voltages voltages (-5V to -24V) make them useful in an endless list of applications. Although designed as fixed voltage regulators, you can add a few external components to make adjustable voltages and currents. (Top View) VOUT 3 2 Current limiting prevents the peak output current to a safe value. Safe-area protection for the output transistor limits internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit activates to prevent the regulator from overheating. These versatile workhorses are easy to use. VIN 1 GND TO-252 (D-PAK) Applications: The GM7900 GM7900 series is available in TO-220, TO-252 and TO-263 packages. Post-Regulator Switching DC/DC Converters Bias Supply for Analog Circuits Instrumentation and Audio Systems Logic Systems Others too numerous to mention Absolute Maximum Ratings: Rating Input Voltage Value GM7924 GM7924 -40 All others -35 Continuous Total Dissipation at 25°C free-air temperature 2 Continuous Total Dissipation at (or bellow) 25°C case temperature 15 Operating free-air, case, or virtual junctions Temperature Range Storage Temperature Range Revision 1, May 2002 1 V W 0 to +150 -65 to +150 Lead Temperature 1.6mm (1/16 inch) from case for 10 seconds Unit °C 260 www.gammamicro.com GM7900 GM7900 PRELIMINARY NEGATIVE VOLTAGE REGULATORS Recommended Operating Conditions PARAMETER MIN MAX GM7905 GM7905 -7.0 -25.0 GM7906 GM7906 -8.0 -25.0 GM7908 GM7908 -10.5 -25.0 -14.5 -30.0 GM7915 GM7915 -17.5 -30.0 GM7918 GM7918 -21.0 -33.0 GM7924 GM7924 Input Voltage SYMBOL -27.0 -38.0 VI GM7912 GM7912 UNIT V Ouput Current IO - 1.5 A Operating Virtual Junction Temperature TJ 0 125 °C TYPICAL APPLICATION 1 (-) VIN 2µF GM7900 GM7900 2 3 1µF (-) VOUT 0.1 µ F When using a negative voltage regulator, bypass capacitors are a must on both the input and output. Recommended values are 2µF on the input and 1µF on the output. It is considered a good practice to include a 0.1µF capacitor on the output to improve the transient response. These capacitors can be mylar, ceramic or tantalum, provided that they have good high frequency characteristics. Revision 1, May 2002 2 www.gammamicro.com GM7900 GM7900 PRELIMINARY NEGATIVE VOLTAGE REGULATORS GM7905 GM7905 ELECTRICAL CHARACTERISTICS at specified Junction Temperature VI=-10V, IO=500mA (unless otherwise noted) PARAMETER Input Regulation Ripple Rejection Output Regulation I O=5mA to 1A, VI =-7V to -20V, P#15W MIN TYP MAX 25°C Output Voltage* TEST CONDITIONS* -4.8 -5 -5.2 0°C to 125°C -4.75 -5 -5.25 12.5 50 4 15 VI =-7V to -25V 25°C VI =-8V to -12V VI =-8V to -12V, f=120Hz 0°C to 125°C I O=5mA to 1.5A I O=5mA Output Noise Voltage Dropout Voltage 60 V mV dB 15 100 5 25°C I O=250mA to 750mA Temperature Coefficient of Ouput Voltage 54 UNIT 50 mV 0°C to 125°C -0.4 mV/°C f = 10Hz to 100kHz 25°C 125 :V I O= 1A 25°C 1.1 V 25°C 1.5 2 0.15 0.5 0.08 0.5 Bias Current Bias Current change VI =-7V to -25V 0°C to 125°C I O=5mA to 1A Peak Output Current 25°C 2.1 mA mA A GM7906 GM7906 ELECTRICAL CHARACTERISTICS at specified Junction Temperature VI=-11V, IO=500mA (unless otherwise noted) PARAMETER Input Regulation Ripple Rejection Output Regulation I O=5mA to 1A, VI =-8V to -21V, P#15W VI =-8V to -25V VI =-9V to -19V, f=120Hz I O=5mA to 1.5A I O=5mA Dropout Voltage -5.75 -6 -6.25 0°C to 125°C -5.7 -6 -6.3 12.5 120 4 60 0°C to 125°C 54 60 UNIT V mV dB 15 120 5 60 mV 0°C to 125°C -0.4 mV/°C f = 10Hz to 100kHz 25°C 150 :V I O= 1A 25°C 1.1 V 25°C 1.5 2 0.15 1.3 0.08 0.5 Bias Current Bias Current change MAX 25°C I O=250mA to 750mA Output Noise Voltage TYP 25°C VI =-9V to -13V Temperature Coefficient of Ouput Voltage MIN 25°C Output Voltage* TEST CONDITIONS* VI =-8V to -25V 0°C to 125°C I O=5mA to 1A Peak Output Current 25°C 2.1 mA mA A *Pulse testing tehniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account. * The specification applies only for DC power dissipation permitted by absolute maximum ratings Revision 1, May 2002 3 www.gammamicro.com GM7900 GM7900 PRELIMINARY NEGATIVE VOLTAGE REGULATORS GM7908 GM7908 ELECTRICAL CHARACTERISTICS at specified Junction Temperature VI=-14V, IO=500mA (unless otherwise noted) PARAMETER Input Regulation Ripple Rejection Output Regulation I O=5mA to 1A, VI =-10.5V to -23V, P#15W MIN TYP MAX 25°C Output Voltage* TEST CONDITIONS* -7.7 -8 -8.3 0°C to 125°C -7.6 -8 -8.4 12.5 160 4 80 VI =-10.5V to -25V 25°C VI =-11V to -17V VI =-11.5V to -21.5V, f=120Hz 0°C to 125°C I O=5mA to 1.5A I O=5mA Output Noise Voltage Dropout Voltage 60 V mV dB 15 160 5 25°C I O=250mA to 750mA Temperature Coefficient of Ouput Voltage 54 UNIT 80 mV 0°C to 125°C -0.6 mV/°C f = 10Hz to 100kHz 25°C 200 :V I O= 1A 25°C 1.1 V 25°C 1.5 2 0.15 1.0 0.08 0.5 Bias Current Bias Current change VI =-10.5V to -25V 0°C to 125°C I O=5mA to 1A Peak Output Current 25°C 2.1 mA mA A GM7912 GM7912 ELECTRICAL CHARACTERISTICS at specified Junction Temperature VI=-19V, IO=500mA (unless otherwise noted) PARAMETER Input Regulation Ripple Rejection Output Regulation I O=5mA to 1A, VI =-14.5V to -27V, P#15W VI =-14.5V to -30V VI =-15V to -25V, f=120Hz I O=5mA to 1.5A I O=5mA Dropout Voltage -11.5 -12 -12.5 0°C to 125°C -11.4 -12 -12.6 5 80 3 30 0°C to 125°C 54 60 UNIT V mV dB 15 200 5 75 mV 0°C to 125°C -0.8 mV/°C f = 10Hz to 100kHz 25°C 300 :V I O= 1A 25°C 1.1 V 25°C 2 3 0.04 0.5 0.06 0.5 Bias Current Bias Current change MAX 25°C I O=250mA to 750mA Output Noise Voltage TYP 25°C VI =-16V to -22V Temperature Coefficient of Ouput Voltage MIN 25°C Output Voltage* TEST CONDITIONS* VI =-14.5V to -30V 0°C to 125°C I O=5mA to 1A Peak Output Current 25°C 2.1 mA mA A *Pulse testing tehniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account. * The specification applies only for DC power dissipation permitted by absolute maximum ratings Revision 1, May 2002 4 www.gammamicro.com GM7900 GM7900 PRELIMINARY NEGATIVE VOLTAGE REGULATORS GM7915 GM7915 ELECTRICAL CHARACTERISTICS at specified Junction Temperature VI=-23V, IO=500mA (unless otherwise noted) PARAMETER Input Regulation Ripple Rejection Output Regulation I O=5mA to 1A, VI =-17.5V to -30V, P#15W MIN TYP MAX 25°C Output Voltage* TEST CONDITIONS* -14.4 -15 -15.6 0°C to 125°C -14.25 -15 -15.75 5 100 3 50 VI =-17.5V to -30V 25°C VI =-20V to -26V VI =-18.5V to -28.5V, f=120Hz 0°C to 125°C I O=5mA to 1.5A I O=5mA Output Noise Voltage Dropout Voltage 60 V mV dB 15 200 5 25°C I O=250mA to 750mA Temperature Coefficient of Ouput Voltage 54 UNIT 75 mV 0°C to 125°C -1.0 mV/°C f = 10Hz to 100kHz 25°C 375 :V I O= 1A 25°C 1.1 V 25°C 2 Bias Current Bias Current change VI =-17.5V to -30V 0.04 Peak Output Current 25°C 0.5 0.06 0°C to 125°C I O=5mA to 1A 3 0.5 2.1 mA mA A GM7918 GM7918 ELECTRICAL CHARACTERISTICS at specified Junction Temperature VI=-27V, IO=500mA (unless otherwise noted) PARAMETER Input Regulation Ripple Rejection Output Regulation I O=5mA to 1A, VI =-21V to -33V, P#15W VI =-21V to -33V VI =-22V to -32V, f=120Hz I O=5mA to 1.5A I O=5mA Dropout Voltage -17.3 -18 -18.7 0°C to 125°C -17.1 -18 -18.9 5 360 3 180 0°C to 125°C 54 60 UNIT V mV dB 30 360 10 180 mV 0°C to 125°C -1.0 mV/°C f = 10Hz to 100kHz 25°C 450 :V I O= 1A 25°C 1.1 V 25°C 2 Bias Current Bias Current change MAX 25°C I O=250mA to 750mA Output Noise Voltage TYP 25°C VI =-24V to -30V Temperature Coefficient of Ouput Voltage MIN 25°C Output Voltage* TEST CONDITIONS* VI =-21V to -33V 0°C to 125°C I O=5mA to 1A Peak Output Current 25°C 3 0.04 1.0 0.06 0.5 2.1 mA mA A *Pulse testing tehniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account. * The specification applies only for DC power dissipation permitted by absolute maximum ratings Revision 1, May 2002 5 www.gammamicro.com GM7900 GM7900 PRELIMINARY NEGATIVE VOLTAGE REGULATORS GM7924 GM7924 ELECTRICAL CHARACTERISTICS at specified Junction Temperature VI=-33V, IO=500mA (unless otherwise noted) PARAMETER TEST CONDITIONS* I O=5mA to 1A, VI =-27V to -38V, P#15W VI =-27V to -38V Input Regulation VI =-28V to -38V, f=120Hz I O=5mA to 1.5A Output Regulation I O=250mA to 750mA Temperature Coefficient of Ouput Voltage I O=5mA Output Noise Voltage Dropout Voltage MAX -23 -24 -25 0°C to 125°C -22.8 -24 -25.2 5 480 3 240 25°C VI =-30V to -36V Ripple Rejection TYP 25°C Output Voltage* MIN 0°C to 125°C 54 V mV 60 dB 85 480 25 25°C UNIT 240 mV 0°C to 125°C -1 mV/°C f = 10Hz to 100kHz 25°C 600 :V I O= 1A 25°C 1.1 V 25°C 2 3 0.04 1.0 0.06 0.5 Bias Current VI =-27V to -38V Bias Current change 0°C to 125°C I O=5mA to 1A Peak Output Current 25°C 2.1 mA mA A *Pulse testing tehniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account. * The specification applies only for DC power dissipation permitted by absolute maximum ratings ORDERING INFORMATION OUTPUT VOLTAGE PACKAGE TO-252-3 GM7905-TA3 GM7905-TA3 GM7905-TB3 GM7905-TB3 GM7905-TC3 GM7905-TC3 6V GM7906-TA3 GM7906-TA3 GM7906-TB3 GM7906-TB3 GM7906-TC3 GM7906-TC3 8V GM7908-TA3 GM7908-TA3 GM7908-TB3 GM7908-TB3 GM7908-TC3 GM7908-TC3 12V GM7912-TA3 GM7912-TA3 GM7912-TB3 GM7912-TB3 GM7912-TC3 GM7912-TC3 15V GM7915-TA3 GM7915-TA3 GM7915-TB3 GM7915-TB3 GM7915-TC3 GM7915-TC3 18V GM7918-TA3 GM7918-TA3 GM7918-TB3 GM7918-TB3 GM7918-TC3 GM7918-TC3 24V Revision 1, May 2002 TO-220-3 5V GM7900 GM7900 TO-263-3 GM7924-TA3 GM7924-TA3 GM7924-TB3 GM7924-TB3 GM7924-TC3 GM7924-TC3 6 www.gammamicro.com GM7900 GM7900 PRELIMINARY NEGATIVE VOLTAGE REGULATORS SCHEMATIC BLOCK DIAGRAM INPUT Q15 Q11 R13 10k Q12 R10 1k D2 D1 6.3V Q13 Q14 Q16 R15 2k R14 230 R12 200 R16 0.3k OUTPUT R17 R1 30k Q6 Q1 VREF R9 4k R2 1.9k R7 17k Q2 C1 20pF Q10 R3 26 R18 2.6k Q7 Q4 Q8 Q5 Q3 R4 1.2k R5 12.1k R6 1k R8 4k Q9 GND Revision 1, May 2002 7 www.gammamicro.com PRELIMINARY GM7900 GM7900 NEGATIVE VOLTAGE REGULATORS Symbol A A1 B b b1 c c1 D E e e1 L L1 L2 L3 V Revision 1, May 2002 Dimensions In Millimeters Min Max 4.470 4.670 0.000 0.150 1.170 1.370 0.710 0.910 1.170 1.370 0.310 0.530 1.170 1.370 10.010 10.310 8.500 8.900 2.540TYP 540TYP 4.980 5.180 15.050 15.450 1.300 1.700 2.340 2.740 5.080 5.480 5.600REF 600REF 8 Dimensions In Inches Min Max 0.176 0.184 0.000 0.006 0.046 0.054 0.028 0.036 0.046 0.054 0.012 0.021 0.046 0.054 0.394 0.406 0.335 0.350 0.100TYP 100TYP 0.196 0.204 0.593 0.608 0.051 0.067 0.092 0.108 0.200 0.216 0.220REF 220REF www.gammamicro.com PRELIMINARY GM7900 GM7900 NEGATIVE VOLTAGE REGULATORS Symbol A A1 b b1 c c1 D E E1 e e1 F L L1 Revision 1, May 2002 Dimensions In Millimeters Min Max 4.470 4.670 2.520 2.820 0.710 0.910 1.170 1.370 0.310 0.530 1.170 1.370 10.010 10.310 8.500 8.900 12.060 12.460 2.540TYP 540TYP 4.980 5.180 2.590 2.890 13.400 13.800 3.560 3.960 3.790 3.890 9 Dimensions In Inches Min Max 0.176 0.184 0.099 0.111 0.028 0.036 0.046 0.054 0.012 0.021 0.046 0.054 0.394 0.406 0.335 0.350 0.475 0.491 0.100TYP 100TYP 0.196 0.204 0.102 0.114 0.528 0.543 0.140 0.156 0.149 0.153 www.gammamicro.com PRELIMINARY GM7900 GM7900 NEGATIVE VOLTAGE REGULATORS Symbol A A1 B b b1 c c1 D D1 E e e1 L1 L2 L3 L4 V Revision 1, May 2002 Dimensions In Millimeters Min Max 2.200 2.400 0.000 0.127 1.350 1.650 0.500 0.700 0.700 0.900 0.430 0.580 0.430 0.580 6.350 6.650 5.200 5.400 5.400 5.700 2.300TYP 300TYP 4.500 4.700 9.500 9.900 1.400 1.780 0.650 0.950 2.550 2.900 3.80REF 80REF 10 Dimensions In Inches Min Max 0.087 0.094 0.000 0.005 0.053 0.065 0.020 0.028 0.028 0.035 0.017 0.023 0.017 0.023 0.250 0.262 0.205 0.213 0.213 0.224 0.091TYP 091TYP 0.177 0.185 0.374 0.390 0.055 0.070 0.026 0.037 0.100 0.114 0.150REF 150REF www.gammamicro.com