positve fixed voltage regulator

SG140A/SG140 POSITIVE FIXED VOLTAGE REGULATOR DESCRIPTION The SG140A/140 series of positive regulators offer self contained, fixed-voltage capability with up to 1.5A of load current and input voltage up to 50V (SG140A series only). These units feature a unique on-chip trimming system to set the output voltages to within ±1.5% of nominal on the SG140A series and ±2.0% on the SG140 series. The SG140A versions also offer much improved line and load regulation characteristics. 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. 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 small output capacitor 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. Product is available in hermetically sealed TO-257 (isolated), TO-3, TO-66, and TO-39 power packages. FEATURES • Output voltage set internally to ±1.5% on SG140A • Input voltage reange to 50V max. on SG140A • Two volt input-output differential • Bandgap reference voltage • Excellent line and load regulation • Foldback current limiting • Thermal overload protection • Voltages available - 5V, 12V, 15V • Voltages Not Recommended For New Designs - 6V, 8V, 18V, 24V HIGH RELIABILITY FEATURES - SG140A/140 ♦ Available to MIL-STD - 883 ♦ Radiation data available ♦ LMI level "S" processing available SCHEMATIC DIAGRAM 2/90 Rev 1.4 6/97 Copyright  1997 1 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 LINFINITY Microelectronics Inc. SG140A/SG140 SERIES ABSOLUTE MAXIMUM RATINGS (Note 1) Device Output Voltage 5V 6V 8V 12V 15V 18V 24V Input Voltage 35V 35V 35V 35V 35V 35V 40V POSITIVE REGULATOR Input Voltage (transient) (Note 3) 50V 50V 50V 50V 50V 50V 50V Input Voltage Differential (Output shorted to ground) 35V 35V 35V 35V 35V 35V 35V Operating Junction Temperature Hermetic (K, R, IG - Packages) ................................... 150°C Note 1. Values beyond which damage may occur. Storage Temperature Range ............................ -65°C to 150°C Lead Temperature (Soldering, 10 Seconds) ................... 300°C 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 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. RECOMMENDED OPERATING CONDITIONS (Note 2) Operating Junction Temperature Range: SG140A/140 .................................................. -55°C to 150°C Note 2. Range over which the device is functional. CHARACTERISTIC CURVES Note 3. Operation at high input voltages is dependent upon load current. When load current is less than 5mA, output will rise out of regulation as inputoiutput differential icreases beyond 30V. Note also from Figure 1, that maximum load current is reduced at high voltages. The 50V input rating of the SG140A series refers to ability to withstnd high line or transient conditions without damage. Since the regulator's maximum current capability is reduced, the output may fall out of regulation at high input voltages under nominal loading. FIGURE 1. PEAK OUTPUT CURRENT VS. INPUT - OUTPUT DIFFERENTIAL 2/90 Rev 1.4 6/97 Copyright  1997 2 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 LINFINITY Microelectronics Inc. SG140A/SG140 SERIES CHARACTERISTIC CURVES (continued) POSITIVE REGULATOR FIGURE 2. MINIMUM INPUT - OUTPUT VOLTAGE VS. LOAD CURRENT FIGURE 3. RIPPLE REJECTION VS. FREQUENCY FIGURE 4. TEMPERATURE COEFFICIENT OF OUTPUT VOLTAGE APPLICATIONS FIGURE 5 - FIXED OUITPUT REGULATOR FIGURE 6 - CIRCUIT FOR INCREASING OUITPUT VOLTAGE FIGURE 7 - HIGH OUTPUT CIRRENT, SHORT CIRCUIT PROTECTED FIGURE 8 - ADJUTABLE OUITPUT REGULATOR, 7V to 30V 2/90 Rev 1.4 6/97 Copyright  1997 3 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 LINFINITY Microelectronics Inc. SG140A/SG140 SERIES ELECTRICAL CHARACTERISTICS (Note 1) SG140A - 5 5.0V POSITIVE REGULATOR (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140A-05 with -55°C ≤ TA ≤ 150°C, VIN = 10V, IO = 1.0A, CIN = 0. 33µF, COUT = 0.1µF and are applicable for the K, R, and IG - Power package - only. 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) Test Conditions IO = 5mA to 1.0A, TJ = 25°C VIN = 7.5V to 20V, IO = 500mA VIN = 7.5V to 20V, TJ = 25°C VIN = 7.5V to 20V VIN = 8V to 12V, TJ = 25°C IO = 5mA to 1.0A IO = 5mA to 1.5A, TJ = 25°C IO = 250mA to 750mA, TJ = 25°C VIN = 7.5V to 20V, IO = 5mA to 1.0A, P ≤ 15W Over Temperature Range TJ = 25°C With Line: VIN = 7.5V to 25V, IO = 500mA VIN = 7.5V to 20V, IO = 1A, TJ = 25°C With Load: IO = 5mA to 1.0A ∆VO = 100mV, IO = 1A, TJ = 25°C TJ = 25°C TJ = 25°C ∆VIN = 10V, f = 120Hz, TJ = 25°C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125°C IO = 5mA Load Regulation (Note 1) SG140A-5 Units Min. Typ. Max. 4.9 5.0 5.1 V 10 mV 3 10 mV 12 mV 4 mV 25 mV 10 25 mV 15 mV 4.8 5.0 5.2 6.5 6 0.8 0.8 0.5 2.5 V mA mA mA mA mA V A A dB µV/V mV °C 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 SG140 - 5 2 2.4 2.1 68 40 20 175 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140-05 with -55°C ≤ TA ≤ 150°C, and VIN = 10V, IO = 500mA, CIN = 0. 33µF, COUT = 0.1µF and are applicable for the K, R, and IG - Power package - only. 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) Test Conditions IO = 5mA to 1.0A, TJ = 25°C VIN = 8V to 20V VIN = 7V to 25V, TJ = 25°C VIN = 8V to 12V, IO = 1.0A VIN = 7.3V to 20V, IO = 1.0A, TJ = 25°C IO = 5mA to 1.0A IO = 5mA to 1.5A, TJ = 25°C IO = 250mA to 750mA, TJ = 25°C VIN = 8V to 20V, IO = 5mA to 1.0A, P ≤ 15W IO = 1.0A TJ = 25°C With Line: VIN = 8V to 25V VIN = 8V to 20V, IO = 1A, TJ = 25°C With Load: IO = 5mA to 1.0A ∆VO = 100mV, IO = 1A, TJ = 25°C TJ = 25°C TJ = 25°C ∆VIN = 10V, f = 120Hz, TJ = 25°C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125°C IO = 5mA Load Regulation (Note 1) SG140-5 Units Min. Typ. Max. V 4.8 5.0 5.2 mV 50 mV 50 mV 25 mV 50 50 mV mV 50 mV 25 4.75 5.00 5.25 7 6 0.8 0.8 0.5 2.5 V mA mA mA mA mA V A A dB µV/V mV °C 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 2 2.4 2.1 68 40 20 175 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. 2/90 Rev 1.4 6/97 Copyright  1997 4 11861 Western Avenue ∞ Garden Grove, CA 92841 (714) 898-8121 ∞FAX: (714) 893-2570 LINFINITY Microelectronics Inc. SG140A/SG140 SERIES ELECTRICAL CHARACTERISTICS (Note 1) SG140 - 6 6.0V & 8.0V POSITIVE REGULATOR (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140-06 with -55°C ≤ TA ≤ 150°C, and VIN = 11V, IO = 500mA, CIN = 0. 33µF, COUT = 0.1µF and are applicable for the K, R, and IG - Power package - only. 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) Test Conditions IO = 5mA to 1.0A, TJ = 25°C VIN = 9V to 21V VIN = 8V to 25V, TJ = 25°C VIN = 9V to 13V, IO= 1.0 A VIN = 8.3V to 21V, IO= 1.0 A, TJ = 25°C IO = 5mA to 1.0A IO = 5mA to 1.5A, TJ = 25°C IO = 250mA to 750mA, TJ = 25°C VIN = 9V to 21V, IO = 5mA to 1.0A, P ≤ 15W IO= 1.0 A TJ= 25°C With Line: VIN = 9V to 25V VIN = 9V to 21V, IO = 1A, TJ = 25°C With Load: IO = 5mA to 1.0A ∆VO = 100mV, IO = 1A, TJ = 25°C TJ = 25°C TJ = 25°C ∆VIN = 10V, f = 120Hz, TJ = 25°C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125°C IO = 5mA Load Regulation (Note 1) SG140 - 6 Units Min. Typ. Max. 5.75 6.00 6.25 V 60 mV 60 mV 30 mV 60 mV 60 mV 60 mV 30 mV 5.7 6.0 6.3 7 6 0.8 0.8 0.5 2.5 V mA mA mA mA mA V A A dB µV/V mV °C Total Output Voltage Tolerance Quiescent Current Quiescent Current Change Dropout Voltage Peak Output Current Short Circuit Current Rippl