SG120 NEGATIVE FIXED VOLTAGE REGULATOR DESCRIPTION FEATURES The SG120 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/ 7800/120 line of three terminal regulators. • • • • • • 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 or a capacitor and 5mA minimum load 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. Utilizing an improved Bandgap reference design, problems have been eliminated that are normally associated with the zener diode references, such as drift in output voltage and large changes in the line and load regulation Output current to 1.5A Excellent line and load regulation Foldback current limiting Thermal overload protection Voltages available: -5V, -12V, -15V Voltages Not Recommended For New Designs: -5.2V, -8V, -18V, -20V • Contact factory for other voltage options HIGH RELIABILITY FEATURES - SG120 ♦ Available to MIL-STD - 883 ♦ Radiation data available ♦ LMI level "S" processing available These devices are available in TO-257 (hermetically sealed TO-220), both isolated and non-isolated), TO-3, TO-39 and TO-66 power packages. SCHEMATIC DIAGRAM 11/91 Rev 1.4 6/97 Copyright 1997 1 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570 SG120 NEGATIVE REGULATOR ABSOLUTE MAXIMUM RATINGS (Note 1) Device Output Voltage -5V -5.2V -8V -12V -15V -18V -20V Input Voltage -35V -35V -35V -35V -40V -40V -40V Operating Junction Temperature Hermetic (K, R, IG - Packages) ................................... 150°C Input Voltage Differential (Output shorted to ground) 35V 35V 35V 35V 35V 35V 35V Storage Temperature Range ........................... -65°C to 150°C Lead Temperature (Soldering, 10 Seconds) ................. 300°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 R Package: Thermal Resistance-Junction to Case, θJC ................. 5.0°C/W Thermal Resistance-Junction to Ambient, θJA .............. 40°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: SG120 ........................................................... -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 FIGURE 3. TEMPERATURE COEFFICIENT 11/91 Rev 1.4 6/97 Copyright 1997 2 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570 SG120 NEGATIVE REGULATOR CHARACTERISTIC CURVES (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 rejection. R + R2 V(REG) R2 = VOUT = V (REGULATOR) 1 R1 15mA 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 electrolitics 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 from output to input will suffice. 11/91 Rev 1.4 6/97 Copyright 1997 3 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570 SG120 -5.0V & -5.2V NEGATIVE REGULATOR ELECTRICAL CHARACTERISTICS (Note 1) SG120-05 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-05 with -55°C ≤ TA ≤ 150°C, and VIN = -10V, IO = 5mA, CIN = 2mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal to the ambient temperature.) 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 SG120-05 Min. Typ. Max. -4.9 -5.0 -5.1 10 25 50 75 30 50 Test Conditions TJ = 25°C VIN = -7V to -25V, TJ = 25°C Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -7.5V to -25V Power Pkgs: IO = 5mA to 1.5A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W VIN = -7V to -25V With Line: VIN = -7V to -25V, TJ = 25°C With Load: TJ = 25°C Power Pkgs: IO = 5mA to 1.5A T - Pkg: IO = 5mA to 500mA ∆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 -4.8 -4.8 -5.0 -5.0 Units V mV mV mV -5.2 -5.2 2 0.4 V V mA mA 0.4 0.4 mA mA 1.1 2.3 3.3 1.4 1.2 0.6 25 20 175 80 V A A A A dB µV/V mV °C 1.5 0.5 54 SG120-5.2 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-5.2 with -55°C ≤ TA ≤ 150°C, and VIN = -10V, IO = 5mA, CIN = 2mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal to the ambient temperature.) 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 SG120-5.2 Min. Typ. Max. -5.1 -5.2 -5.3 15 25 50 75 30 50 Test Conditions TJ = 25°C VIN = -7.2V to -25V, TJ = 25°C Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -7.7V to -25V Power Pkgs: IO = 5mA to 1.5A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W VIN = -7.2V to -25V With Line: VIN = -7.2V to -25V, TJ = 25°C With Load: TJ = 25°C Power Pkgs: IO = 5mA to 1.5A T - Pkg: IO = 5mA to 500mA ∆VO = 100mV, TJ = 25°C Power Pkgs: IO = 1.5A, 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 -5.0 -5.0 -5.2 -5.2 Units V mV mV mV -5.4 -5.4 2 0.4 V V mA mA 0.4 0.4 mA mA 1.1 2.3 3.3 1.4 1.2 0.6 25 20 175 80 V A A A A dB µV/V mV °C 1.5 0.5 54 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. 11/91 Rev 1.4 6/97 Copyright 1997 4 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570 SG120 -8V & -12V NEGATIVE REGULATOR ELECTRICAL CHARACTERISTICS (Note 1) SG120-08 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-08 with -55°C ≤ TA ≤ 150°C, and VIN = -14V, IO = 5mA, CIN = 1.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal to the ambient temperature.) 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 SG120-8 Min. Typ. Max. -7.8 -8.0 -8.2 10 25 20 80 10 25 Test Conditions TJ = 25°C VIN = -10.5V to -25V, TJ = 25°C Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -10.5V to -25V Power Pkgs: IO = 5mA to 1.5A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W VIN = -10.5V to -25V With Line: VIN = -10.5V to -25V, TJ = 25°C With Load: TJ = 25°C Power Pkgs: IO = 5mA to 1.5A T - Pkg: IO = 5mA to 500mA ∆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 -7.65 -8.00 -8.35 -7.65 -8.00 -8.35 2 0.4 Units V mV mV mV V V mA mA 0.4 0.4 mA mA 1.1 2.3 3.3 1.4 1.2 0.6 25 32 175 80 V A A A A dB µV/V mV °C 1.5 0.5 54 SG120-12 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-12 with -55°C ≤ TA ≤ 150°C, and VIN = -17V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal to the ambient temperature.) 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 SG120-12 Min. Typ. Max. -11.7 -12.0 -12.3 4 10 30 80 10 25 Test Conditions TJ = 25°C VIN = -14V to -32V, TJ = 25°C Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -14.5V to -32V Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W VIN = -14V to -32V With Line: VIN = -14V to -32V, TJ = 25°C With Load: TJ = 25°C Power Pkgs: IO = 5mA to 1.0A T - Pkg: IO = 5mA to 500mA ∆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 -11.5 -12.0 -12.5 -11.5 -12.0 -12.5 2 4 0.4 Units V mV mV mV V V mA mA 0.4 0.4 mA mA 1.1 2.3 3.3 1.4 1.2 0.6 25 48 175 80 V A A A A dB µV/V mV °C 1.5 0.5 56 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. 11/91 Rev 1.4 6/97 Copyright 1997 5 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570 SG120 -15V & -18V NEGATIVE REGULATOR ELECTRICAL CHARTACTERISTICS (Note 1) SG120-15 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-15 with -55°C ≤ TA ≤ 150°C, and VIN = -20V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal to the ambient temperature.) 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 SG120-15 Min. Typ. Max. -14.7 -15.0 -15.3 5 10 30 80 10 25 Test Conditions TJ = 25°C VIN = -17V to -35V, TJ = 25°C Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -17.5V to -35V Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W VIN = -17V to -35V With Line: VIN = -17V to -35V, TJ = 25°C With Load: TJ = 25°C Power Pkgs: IO = 5mA to 1.0A T - Pkg: IO = 5mA to 500mA ∆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 -14.5 -15.0 -15.5 -14.5 -15.0 -15.5 2 4 0.4 Units V mV mV mV V V mA mA 0.4 0.4 mA mA 1.1 2.3 3.3 1.4 1.2 0.6 25 60 175 80 V A A A A dB µV/V mV °C 1.5 0.5 56 SG120-18 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-18 with -55°C ≤ TA ≤ 150°C, and VIN = -27V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal to the ambient temperature.) 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 SG120-18 Min. Typ. Max. -17.6 -18.0 -18.4 5 10 30 80 10 25 Test Conditions TJ = 25°C VIN = -21V to -33V, TJ = 25°C Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -22V to -33V Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W VIN = -21V to -33V With Line: VIN = -21V to -33V, TJ = 25°C With Load: TJ = 25°C Power Pkgs: IO = 5mA to 1.0A T - Pkg: IO = 5mA to 500mA ∆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 -17.4 -18.0 -18.6 -17.4 -18.0 -18.6 2 4 0.4 1.1 1.5 0.5 56 25 72 175 Units V mV mV mV V V mA mA 0.4 0.4 mA mA 2.3 3.3 1.4 1.2 0.6 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. 11/91 Rev 1.4 6/97 Copyright 1997 6 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570 SG120 -20V NEGATIVE REGULATOR ELECTRICAL CHATRACTERISTICS (Note 1) SG120-20 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-20 with -55°C ≤ TA ≤ 150°C, and VIN = -29V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal to the ambient temperature.) 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 SG120-20 Units Min. Typ. Max. -19.5 -20.0 -20.5 V 5 10 mV 30 80 mV 10 25 mV Test Conditions TJ = 25°C VIN = -23V to -35V, TJ = 25°C Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C T - Pkg: IO = 5mA to 500mA, TJ = 25°C VIN = -24V to -35V Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W T - Pkg: IO = 5mA to 500mA, P ≤ 2W VIN = -23V to -35V With Line: VIN = -23V to -35V, TJ = 25°C With Load: TJ = 25°C Power Pkgs: IO = 5mA to 1.0A T - Pkg: IO = 5mA to 500mA ∆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 -19.3 -20.0 -20.7 -19.3 -20.0 -20.7 2 4 0.4 V V mA mA 0.4 0.4 mA mA 1.1 2.3 3.3 1.4 1.2 0.6 25 80 175 80 V A A A A dB µV/V mV °C 1.5 0.5 56 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. 11/91 Rev 1.4 6/97 Copyright 1997 7 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570 SG120 NEGATIVE REGULATOR CONNECTION DIAGRAMS & ORDERING INFORMATION Package 3-TERMINAL TO-3 METAL CAN K-PACKAGE Part No. SG120-XXK/883B SG120-XXK (See Notes Below) Ambient Temperature Range Connection Diagram -55°C to 125°C -55°C to 125°C GROUND 1 2 CASE IS VIN VOUT 3-TERMINAL TO-66 METAL CAN R-PACKAGE SG120-XXR/883B SG120-XXR -55°C to 125°C -55°C to 125°C GROUND 1 2 CASE IS VIN VOUT 3-PIN TO-39 METAL CAN T-PACKAGE SG120-XXT/883B SG120-XXT -55°C to 125°C -55°C to 125°C GROUND 1 VOUT 2 VIN 3 CASE IS VIN 3-PIN HERMETIC TO-257 IG-PACKAGE (Isolated) SG120-XXIG/883B SG120-XXIG -55°C to 125°C -55°C to 125°C 20-PIN CERAMIC (LCC) LEADLESS CHIP CARRIER L- PACKAGE SG120-XXL/883B SG120-XXL -55°C to 125°C -55°C to 125°C Note 1. 2. 3. 4. VOUT VIN GROUND (Note 4) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. N.C. VIN N.C. VOUT VOUT N.C. VOUT SENSE N.C. N.C. N.C. 3 2 1 20 19 4 18 5 17 6 16 7 15 8 14 9 10 11 12 13 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. N.C. N.C. N.C. N.C. GND N.C. GND N.C. N.C. 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 leadless chip carrier (LCC) and hermetic flat pack (F). Consult factory for price and availability 11/91 Rev 1.4 6/97 Copyright 1997 8 11861 L INF INITY Western Microelectronics Inc. ∞ Garden Grove, CA 92841 Avenue ∞ (714) 898-8121 FAX: (714) 893-2570