SG7900A/SG7900 SERIES SG7900A/SG7900 NEGATIVE FIXED VOLTAGE REGULATOR DESCRIPTION FEATURES The SG7900A/SG7900 series of negative regulators offer self-contained, fixed-voltage capability with up to 1.5A of load current. With a variety of output voltages and four package options this regulator series is an optimum complement to the SG7800A/SG7800, SG140 line of three terminal regulators. • • • • • • • • These units feature a unique band gap reference which allows the SG7900A series to be specified with an output voltage tolerance of ±1.5%. The SG7900A versions also offer much improved line regulation characteristics. All protective features of thermal shutdown, current limiting, and safe-area control have been designed into these units and since these regulators require only a single output capacitor (SG7900 series) or a capacitor and 5mA minimum load (SG120 series) for satisfactory performance, ease of application is assured. Although designed as fixed-voltage regulators, the output voltage can be increased through the use of a simple voltage divider. The low quiescent drain current of the device insures good regulation when this method is used, especially for the SG120 series. Output voltage set internally to ±1.5% on SG7900A Output current to 1.5A Excellent line and load regulation Foldback current limiting Thermal overload protection Voltages available: -5V, -12V, -15V Contact factory for other voltage options Available in surface mount package HIGH RELIABILITY FEATURES - SG7900A/SG7900 ♦ Available to MIL-STD - 883 ♦ MIL-M38510/11501BXA - JAN7905T ♦ MIL-M38510/11505BYA - JAN7905K ♦ MIL-M38510/11502BXA - JAN7912T ♦ MIL-M38510/11506BYA - JAN7912K ♦ MIL-M38510/11503BXA - JAN7915T ♦ MIL-M38510/11507BYA - JAN7915K ♦ LMI level "S" processing available These devices are available in hermetically sealed TO-257, TO-3, TO-39 and LCC package. SCHEMATIC DIAGRAM ** ** For normal operation the (VOS) Sense Pin must be externally connected to the load. LINFINITY 05/01 Rev 1.5 Copyright 1999 1 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 SG7900A/SG7900 SERIES NEGATIVE REGULATOR ABSOLUTE MAXIMUM RATINGS (Note 1) Device Output Voltage -5V -12V -15V Input Voltage -35V -35V -40V Operating Junction Temperature Hermetic (K, T, IG & L - Packages) ........................ Input Voltage Differential (Output shorted to ground) 35V 35V 35V Storage Temperature Range .......................... -65°C to 150°C Lead Temperature (Soldering, 10 Seconds) ................. 300°C 150°C Note 1. Values beyond which damage may occur. THERMAL DATA K Package: Thermal Resistance-Junction to Case, θJC ................. 3.0°C/W Thermal Resistance-Junction to Ambient, θJA ............... 35°C/W T Package: Thermal Resistance-Junction to Case, θJC .................. 15°C/W Thermal Resistance-Junction to Ambient, θJA ............ 120°C/W IG Package: Thermal Resistance-Junction to Case, θJC ................. 3.5°C/W Thermal Resistance-Junction to Ambient, θJA .............. 42°C/W L Package: Thermal Resistance-Junction to Case, θJC .................. 35°C/W Thermal Resistance-Junction to Ambient, θJA ............ 120°C/W RECOMMENDED OPERATING CONDITIONS Note A. Junction Temperature Calculation: TJ = TA + (PD x θJA). Note B. The above numbers for θJC are maximums for the limiting thermal resistance of the package in a standard mounting configuration. The θJA numbers are meant to be guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. (Note 2) Operating Junction Temperature Range: SG7900A/7900 ............................................. -55°C to 150°C Note 2. Range over which the device is functional. CHARACTERISTIC CURVES FIGURE 1. MAXIMUM AVERAGE POWER DISSIPATION FIGURE 2. QUIESCENT CURRENT VS. LOAD LINFINITY 05/01 Rev 1.5 Copyright 1999 FIGURE 3. TEMPERATURE COEFFICIENT 2 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 SG7900A/SG7900 SERIES CHARACTERISTIC CURVES NEGATIVE REGULATOR (continued) FIGURE 4. SHORTCIRCUIT CURRENT VS. VIN FIGURE 5. QUIESCENT CURRENT VS. VIN FIGURE 7. DROPOUT CHARACTERISTICS FIGURE 6. SHORT CIRCUIT CURRENT VS. VIN FIGURE 8. RIPPLE REJECTION VS. FREQUENCY APPLICATIONS FIGURE 10 - CIRCUIT FOR INCREASING OUTPUT VOLTAGE FIGURE 9 - FIXED OUTPUT REGULATOR NOTE: C3 optional for improved transient response and ripple rejec NOTE: 1. C1 is required only if regulator is separated from rectifier filter. 2. Both C1 and C2 should be low E.S.R. types such as solid tantalum. If aluminum electrolytics are used, at least 10 times values shown should be selected. 3. If large output capacities are used, the regulators must be protected from momentary input shorts. A high current diode VOUT = V (REGULATOR) R2 = LINFINITY 05/01 Rev 1.5 Copyright 1999 R 1 + R2 R1 3 V(REG) 15mA Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 SG7900A/SG7900 SERIES -5.0V NEGATIVE REGULATOR ELECTRICAL SPECIFICATIONS (Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7905A/SG7905 with -55°C ≤ TA ≤ 150°C, VIN = -10V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2µF, and COUT = 1.0µF. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) SG7905A/SG7905 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Total Output Voltage Tolerance Quiescent Current Quiescent Current Change Dropout Voltage Peak Output Current Short Circuit Current Ripple Rejection Output Noise Voltage (rms) Long Term Stability Thermal Shutdown Test Conditions TJ = 25°C VIN = -7.5V to -25V, TJ = 25°C VIN = -8V to -12V, TJ = 25°C Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C IO = 250mA to 750mA, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -8V to -20V Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W Over Temperature Range TJ = 25°C with Line: VIN = -8V to -25V with Load: IO = 5mA to 1.0A (Power Packages) IO = 5mA to 500mA (T) ∆VO = 100mV, TJ = 25°C Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA Power Pkgs: TJ = 25°C T - Pkg: TJ = 25°C Power Pkgs: VIN = -35V, TJ = 25°C T - Pkg: VIN = -35V, TJ = 25°C ∆VIN = 10V, f = 120Hz, TJ = 25°C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125°C IO = 5mA SG7905A SG7905 Min. Typ. Max. Min. Typ. Max. -4.92 -5.00 -5.08 -4.8 -5.0 -5.2 5 25 50 3 3 12 1 25 15 75 100 15 15 25 15 25 5 30 5 100 -4.85 -5.00 -5.15 -4.70 -5.00 -5.30 -4.85 -5.00 -5.15 -4.70 -5.00 -5.30 2.5 2.5 2.0 2.0 1.3 1.3 0.5 0.5 0.5 0.5 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 54 1.1 2.3 3.3 1.4 1.2 0.6 25 20 175 80 1.5 0.5 54 25 20 175 80 Units V mV mV mV mV mV V V mA mA mA mA mA V A A A A dB µV/V mV °C Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing. 2. This test is guaranteed but is not tested in production. LINFINITY 05/01 Rev 1.5 Copyright 1999 4 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 SG7900A/SG7900 SERIES -12V NEGATIVE REGULATOR ELECTRICAL SPECIFICATIONS (Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7912A/SG7912 with -55°C ≤ TA ≤ 150°C, VIN = -19V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2µF, and COUT = 1.0µF. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) SG7912A/SG7912 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Total Output Voltage Tolerance Quiescent Current Quiescent Current Change Dropout Voltage Peak Output Current Short Circuit Current Ripple Rejection Output Noise Voltage (rms) Long Term Stability Thermal Shutdown Test Conditions TJ = 25°C VIN = -14.5V to -30V, TJ = 25°C VIN = -16V to -22V, TJ = 25°C Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C IO = 250mA to 750mA, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -14.5V to -27V Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W Over Temperature Range TJ = 25°C with Line: VIN = -14.5V to -30V with Load: IO = 5mA to 1.0A (Power Packages) IO = 5mA to 500mA (T) ∆VO = 100mV, TJ = 25°C Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA Power Pkgs: TJ = 25°C T - Pkg: TJ = 25°C Power Pkgs: VIN = -35V, TJ = 25°C T - Pkg: VIN = -35V, TJ = 25°C ∆VIN = 10V, f = 120Hz, TJ = 25°C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125°C IO = 5mA SG7912A SG7912 Min. Typ. Max. Min. Typ. Max. -11.8 -12.0 -12.2 -11.5 -12.0 -12.5 4 60 10 120 30 3 3 60 12 20 90 120 40 4 10 60 10 10 40 240 -11.7 -12.0 -12.3 -11.4 -12.0 -12.6 -11.7 -12.0 -12.3 -11.4 -12.0 -12.6 4 4 3 3 1.0 1.0 0.5 0.5 0.5 0.5 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 1.1 2.3 3.3 1.4 0.2 0.6 25 60 175 80 1.5 0.5 54 54 25 60 175 80 Units V mV mV mV mV mV V V mA mA mA mA mA V A A A A dB µV/V mV °C Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing. 2. This test is guaranteed but is not tested in production. LINFINITY 05/01 Rev 1.5 Copyright 1999 5 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 SG7900A/SG7900 SERIES -15V NEGATIVE REGULATOR ELECTRICAL SPECIFICATIONS (Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7915A/SG7915 with -55°C ≤ TA ≤ 150°C, VIN = -23V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2µF, and COUT = 1.0µF. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) SG7915A/SG7915 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Total Output Voltage Tolerance Quiescent Current Quiescent Current Change Dropout Voltage Peak Output Current Short Circuit Current Ripple Rejection Output Noise Voltage (rms) Long Term Stability Thermal Shutdown Test Conditions TJ = 25°C VIN = -17.5V to -30V, TJ = 25°C VIN = -20V to -25V, TJ = 25°C Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C IO = 250mA to 750mA, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -18.5V to -30V Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W Over Temperature Range TJ = 25°C with Line: VIN = -18.5V to -30V with Load: IO = 5mA to 1.0A (Power Packages) IO = 5mA to 500mA (T) ∆VO = 100mV, TJ = 25°C Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA Power Pkgs: TJ = 25°C T - Pkg: TJ = 25°C Power Pkgs: VIN = -35V, TJ = 25°C T - Pkg: VIN = -35V, TJ = 25°C ∆VIN = 10V, f = 120Hz, TJ = 25°C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125°C IO = 5mA SG7915A SG7915 Min. Typ. Max. Min. Typ. Max. -14.8 -15.0 -15.2 -14.4 -15.0 -15.6 5 75 11 150 3 40 3 75 30 100 12 150 4 50 4 75 10 50 10 240 -14.6 -15.0 -15.4 -14.25 -15.00 -15.75 -14.6 -15.0 -15.4 -14.25 -15.00 -15.75 4 4 3 3 1.0 1.0 0.5 0.5 0.5 0.5 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 54 1.1 2.3 3.3 1.4 1.2 0.6 25 60 175 80 1.5 0.5 54 25 60 175 80 Units V mV mV mV mV mV V V mA mA mA mA mA V A A A A dB µV/V mV °C Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing. 2. This test is guaranteed but is not tested in production. LINFINITY 05/01 Rev 1.5 Copyright 1999 6 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 SG7900A/SG7900 SERIES NEGATIVE REGULATOR CONNECTION DIAGRAMS & ORDERING INFORMATION Package 3-TERMINAL TO-3 METAL CAN K-PACKAGE 3-PIN TO-39 METAL CAN T-PACKAGE 3-PIN HERMETIC TO-257 IG-PACKAGE (Isolated) 20-PIN CERAMIC LEADLESS CHIP CARRIER L- PACKAGE Note 1. 2. 3. 4. 5. 6. Part No. (See Notes Below) Ambient Temperature Range SG79XXAK/883B SG7905AK/DESC SG7912AK/DESC SG7915AK/DESC SG79XXAK SG79XXK/883B JAN7905K JAN7912K JAN7915K SG79XXK SG79XXK -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C 0°C to 125°C SG79XXAT/883B SG7905AT/DESC SG7912AT/DESC SG7915AT/DESC SG79XXAT SG79XXT/883B JAN7905T JAN7912T JAN7915T SG79XXT -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C SG79XXAIG/883B SG7905AIG/DESC SG7912AIG/DESC SG7915AIG/DESC SG79XXAIG SG79XXIG/883B SG79XXIG -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C SG79XXL/883B SG79XXL SG7905AL/DESC SG7912AL/DESC SG7915AL/DESC -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C -55°C to 125°C Connection Diagram GROUND 1 2 CASE IS VIN VOUT GROUND 1 VOUT 2 3 VIN CASE IS VIN VOUT VIN GROUND (See Notes 5 & 6) 1. N.C. 2. VIN 3. N.C. 4. VO 5. VO 6. N.C. 7. VO SENSE 8. N.C. 9. N.C. 10. N.C. 3 2 1 20 19 4 18 5 17 6 16 7 15 8 14 9 10 11 12 13 11. N.C. 12. N.C. 13. N.C. 14. N.C. 15. GND 16. N.C. 17. GND 18. N.C. 19. N.C. 20. VIN Contact factory for JAN and DESC product availability. All parts are viewed from the top. "XX" to be replaced by output voltage of specific fixed regulator. Some products will be available in hermetic flat pack (F). Consult factory for price and availability. Both inputs and outputs must be externally connected together at the device terminals. For normal operation, the VO SENSE pin must be externally connected to the load. LINFINITY 05/01 Rev 1.5 Copyright 1999 7 Microelectronics Inc. 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570