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| KA79LXXA 3-Terminal 0.1A Negative Voltage Regulator Features * * * * * * Output current up to 100mA No external components Internal thermal over load protection Internal short circuit current limiting Output Voltage Offered in 5% Tolerance Output Voltage of -5V, -8V, -12V, -15V, -18V and -24V Description Boca Semiconductor Corp. BSC http://www.bocasemi.com These regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. TO-92 SOT-89 1 1 1.GND 2.Input 3.Output 8-SOP 1 1. Output 2.3.6.7. GND 4.5. NC 8. Input Internal Block Diagram Output Input http://www.bocasemi.com KA79LXXA Absolute Maximum Ratings Parameter Input Voltage (for Vo= -5V to -8V) (for Vo= -12V to -18V) (for Vo= -24V) Operating Temperature Range Storage Temperature Range Symbol VI TOPR TSTG Value -30 -35 -40 0 ~ +125 -65 ~ +150 Unit V C C Electrical Characteristics(KA79L05A) (VI = -10V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0C TJ +125C, unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO VO TJ = +25 C TJ =+25 C -7.0V VI -20V -8V VI -20V 1.0mA IO 100mA 1.0mA IO 40mA Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage with line with load VO IQ IQ IQ VN RR VD VI = -10V, 1.0mA IO 70mA TJ =+ 25 C TJ = +125 C -8V VI -20V 1.0mA IO 40mA TA = +25C,10Hzf100KHz f = 120Hz, -8VVI -18V TJ = +25C TJ = +25C Conditions Min. - 4.8 - 4.75 41 Typ. - 5.0 15 20 10 2.0 30 60 1.7 Max. - 5.2 150 100 60 30 - 5.25 - 5.25 5.5 6.0 1.5 0.1 Unit V mV mV mV mV V V mA mA mA V dB V Load Regulation (Note1) VO TJ =+25 C -7.0V VI -20V, 1.0mA IO 40mA - 4.75 Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 2 KA79LXXA Electrical Characteristics (KA79L08A) (VI = -14V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0C TJ +125C, unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO VO VO VO IQ with line with load IQ VN RR VD TJ = +25 C TJ =+25 C TJ =+25 C -10.3V VI -23V -12V VI -23V 1.0mA Io 100mA 1.0mA Io 40mA Conditions Min. - 7.7 - 7.6 - 7.6 39 Typ. - 8.0 50 55 1.7 Max. Unit - 8.3 175 125 80 40 - 8.4 - 8.4 6.0 5.5 1.5 0.1 V mV mV mV mV V mA mA mA V dB V Load Regulation (Note1) Output Voltage Quiescent Current Quiescent Current Change -10.3V VI -23V, 1.0mA Io 40mA VI = -14V, 1.0mA Io 70mA Tj =+ 25 C Tj = +125 C -11.7V VI -23V 1.0mA Io 40mA Tj = +25C,10Hz f 100KHz f = 120Hz, -11V VI -21V Tj = +25C Tj = +25C Output Noise Voltage Ripple Rejection Dropout Voltage Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 3 KA79LXXA Electrical Characteristics(KA79L12A) (VI = -19V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0C TJ +125C, unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO VO VO VO IQ with line with load IQ IQ VN RR VD TJ = +25 C TJ = +25 C TJ = +25 C -14.5V VI -27V -16VVI -27V 1.0mA IO 100mA 1.0mA IO 40mA Conditions Min. -11.4 37 Typ. 80 42 1.7 Max. 250 200 100 50 -12.6 -12.6 6.0 6.5 1.5 0.1 Unit V mV mV mV mV V V mA mA mA V dB V -11.5 -12.0 -12.5 Load Regulation (Note1) Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage -14.5V >VI > -27V, 1.0mA IO 40mA -11.4 VI = -19V, 1.0mA IO 70mA TJ = +25 C TJ = +125 C -16V VI -27V 1.0mA IO 40mA TA = +25C,10Hz f 100KHz f = 120Hz, -15V VI -25V TJ = +25C TJ = +25C Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 4 KA79LXXA Electrical Characteristics(KA79L15A) (VI = -23V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0C TJ +125C, unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO VO VO VO IQ IQ IQ VN RR VD TJ = +25 C TJ = +25 C TJ = +25 C -17.5V VI -30V -20V VI -30V 1.0mA IO 100mA 1.0mA IO 40mA Conditions Min. -14.25 -14.25 34 Typ. 90 39 1.7 Max. 300 250 150 75 -15.75 -15.75 6.0 6.5 1.5 0.1 Unit V mV mV mV mV V V mA mA mA V dB V -14.4 -15.0 -15.6 Load Regulation (Note1) Output Voltage Quiescent Current Quiescent Current with line Change with load Output Noise Voltage Ripple Rejection Dropout Voltage -17.5V VI -30V, 1.0mA IO 40mA VI = -23V, 1.0mA IO 70mA TJ = +25C TJ = +125C -20V VI -30V 1.0mA IO 40mA TA = +25C,10Hz f 100KHz f = 120Hz, -18.5V VI -28.5V TJ = +25C TJ = +25C Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 5 KA79LXXA Electrical Characteristics(KA79L18A) (VI = -27V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0C TJ +125C, unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO VO VO VO IQ with line with load IQ IQ VN RR VD TJ = +25 C TJ = +25 C TJ = +25 C -20.7V VI -33V -21V VI -33V 1.0mA IO 100mA 1.0mA IO 40mA Conditions Min. Typ. -17.1 33 150 48 1.7 Max. 325 275 170 85 -18.9 -18.9 6.5 6.0 1.5 0.1 Unit V mV mV mV mV V V mA mA mA V dB V -17.3 -18.0 -18.7 Load Regulation (Note1) Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage -20.7V > VI > -33V, 1.0mA IO 40mA -17.1 VI = -27V, 1.0mA IO 70mA TJ = +25C TJ = +125C -21V VI -33V 1.0mA IO 40mA TA =+25C,10Hz f 100KHz f = 120Hz, -23V VI -33V TJ = +25C TJ = +25C Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 6 KA79LXXA Electrical Characteristics(KA79L24A) (VI = -33V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0C TJ +125C, unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO VO VO VO IQ with line with load IQ IQ VN RR VD TJ = +25 C TJ = +25 C TJ = +25 C -27V VI -38V -28V VI -38V 1.0mA IO 100mA 1.0mA IO 40mA Conditions Min. -23 -22.8 -22.8 31 Typ. -24 200 47 1.7 Max. -25 350 300 200 100 -25.2 -25.2 6.5 6.0 1.5 0.1 Unit V mV mV mV mV V V mA mA mA V dB V Load Regulation (Note1) Output Voltage Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage -27V VI -38V, 1.0mA IO 40mA VI = -33V, 1.0mA IO 70mA TJ = +25C TJ = +125C -28V VI -38V 1.0mA IO 40mA TA = +25C,10Hz f 100KHz f = 120Hz, -29V VI -35V TJ = +25C TJ = +25C Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 7 KA79LXXA Typical Application Design Considerations The KA79LXXA Series of fixed voltage regulators are designed with Thermal Overload Protection that shuts down the circuit when subjected to an excessive power overload condition. Internal Short Circuit Protection that limits the maximum current the circuit will pass. In many low current applications, compensation capacitors are not required. However, it is recommended that the regulator input be bypassed with a capacitor if the regulator is connected to the power supply filter with long wire lengths, or if the output load capacitance is large. An input bypass capacitor should be selected to provide good high frequency characteristics to insure stable operation under all load conditions. A 0.33F or larger tantalum, mylar, or other capacitor having low internal impedance at high frequencies should be chosen. The bypass capacitor should be mounted with the shortest possible leads directly across the regulator's input terminals. Normally good construction techniques should be used to minimize ground loops and lead resistance drops since the regulator has no external sense lead. Bypassing the output is also recommended. I Figure 1. Positive And Negative Regulator Figure 2. Typical Application A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input ripple voltage. * C1 is required if regulator is located an appreciable distance from power supply filter. * CO improves stability and transient response. 8 KA79LXXA Mechanical Dimensions Package TO-92 4.58 -0.15 +0.25 14.47 0.40 0.46 0.10 4.58 0.20 1.27TYP [1.27 0.20] 3.60 0.20 1.27TYP [1.27 0.20] 0.38 -0.05 +0.10 3.86MAX 1.02 0.10 0.38 -0.05 +0.10 (R2.29) (0.25) 9 KA79LXXA Mechanical Dimensions(Continued) Package 8-SOP MIN 1.55 0.20 0.061 0.008 0.1~0.25 0.004~0.001 #1 #8 4.92 0.20 0.194 0.008 5.13 MAX 0.202 ( #4 #5 6.00 0.30 0.236 0.012 +0.10 0.15 -0.05 +0.004 0.006 -0.002 0.56 ) 0.022 1.80 MAX 0.071 MAX0.10 MAX0.004 3.95 0.20 0.156 0.008 5.72 0.225 0.50 0.20 0.020 0.008 10 0~ 8 1.27 0.050 0.41 0.10 0.016 0.004 KA79LXXA Mechanical Dimensions (Continued) Package SOT-89 4.50 0.20 1.65 0.10 C0.2 (0.50) 1.50 0.20 (0.40) 2.50 0.20 0.50 0.10 1.50 TYP 1.50 TYP 0.40 0.10 0.40 +0.10 -0.05 (1.10) 4.10 0.20 11 KA79LXXA Ordering Information Product Number KA79L05AZ KA79L08AZ KA79L12AZ KA79L15AZ KA79L18AZ KA79L24AZ KA79L05AD KA79L05AM 8-SOP SOT-89 TO-92 0 ~ + 125C Package Operating Temperature 12 http://www.bocasemi.com |
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