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| Bay Linear Linear Excellence 100mA Negative Voltage Regulator LM79LXX Description The Bay Linear LM79LXX is integrated linear negative regulator with three terminals. The LM79LXX offer several fixed output voltages making them useful in wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition they can be used with power pass elements to make high-current voltage regulators. Each of these regulators can deliver up to 100mA of output current. When used in replacement for a Zener diode-resistor combination, an effective improvement in output impedance can be obtained together with lower-bias current. The LM79LXX is available in the plastic TO-92 (Z) package. Features * * * * * * * * Output Current of 100mA Output Voltage Tolerance of 5% Internal thermal overload protection Internal Short-Circuit Limited No External Component Output Voltage- 5.0V, -12V, -15V, -18V, 24V Offer in plastic TO-92 Direct Replacement for MC79L00 Applications * * Post regulator for switching DC/DC converter Bias supply for analog circuits Packaging Information Ordering Information Device LM79l05 LM79L12 LM79L15 LM79L18 LM79L24 Operating Voltage 7 to 20 14.5 to 27 17.5 to 30 20.5 to 33 27 to 38 Temp. 0 to 125 C 0 to 125 C 0 to 125 C 0 to 125 C 0 to 125 C Package TO-92 TO-92 TO-92 TO-92 TO-92 TO-92 (N) 1 2 3 1. 2. 3. Common Input Output Bottom View Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com LM79LXX Absolute Maximum Rating Parameter Input Voltage Operating Free-Air, Case, Virtual Junction Temp. Storage Temperature Range Lead temperature 1.6 mm from case for sec. LM79L05 -30 0 to 150 -65 to 150 260 LM78L12...LM78L18 -35 0 to 150 -65 to 150 260 LM78L24 -40 0 to 150 -65 to 150 260 Unit V C Electrical Characteristics (LM79L05) (VI=10V, IO=40mA, 0C TJ125 C, CI = 0.33F, CO = 0.1F, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Load Regulation Ripple Rejection Output Noise Voltage Dropout Voltage Quiescent Current Quiescent Current Change Symbol VO VO VO RR VN VD IQ Conditions TJ = 25 C VI = -7V to -20V TJ = 25 C VI = -7V to -20V TJ = 25 C IO = 1mA to 100mA, 25 C IO = 1mA to 40mA, 25 C VI = -8V to -18V, f=120Hz F= 10Hz to 100Hz TJ = 25 C TJ = 25 C TJ = 25 C VI = -8V to -20V, TJ = 25 C IO = 1mA to 40mA, TJ = 25 C MIN -4.8 TYP -5.0 15 20 10 49 46 1.7 MAX -5.2 150 100 60 30 UNIT V mV mV dB V V mA mA 41 6mA 1.5 0.1 Electrical Characteristics (LM79L12) (VI=10V, IO=40mA, 0C TJ125 C, CI = 0.33F, CO = 0.1F, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Load Regulation Ripple Rejection Output Noise Voltage Dropout Voltage Quiescent Current Quiescent Current Change Symbol VO VO VO RR VN VD IQ Conditions TJ = 25 C VI =-14.5V to -27V TJ = 25 C VI =- 14.5V to -27V TJ = 25 C IO = 1mA to 100mA, 25 C IO = 1mA to 40mA, 25 C VI = -16V to -27V, f=120Hz F= 10Hz to 100Hz TJ = 25 C TJ = 25 C TJ = 25 C VI = -16V to -27V, TJ = 25 C IO = 1mA to 40mA, TJ = 25 C MIN -11.50 TYP -12 50 40 24 15 42 80 1.7 MAX -12.5 250 200 100 50 UNIT V mV mV dB V V mA mA 37 6.5mA 1.5 0.1 Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com LM79LXX Electrical Characteristics (LM79L15) (VI=10V, IO=40mA, 0C TJ125 C, CI = 0.33F, CO = 0.1F, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Load Regulation Ripple Rejection Output Noise Voltage Dropout Voltage Quiescent Current Quiescent Current Change Symbol VO VO VO RR VN VD IQ Conditions TJ = 25 C VI = -17.5V to -30V TJ = 25 C VI = -17.5V to -30V TJ = 25 C IO = 1mA to 100mA, 25 C IO = 1mA to 40mA, 25 C VI = -18.5V to -28.5V, f=120Hz F= 10Hz to 100Hz TJ = 25 C TJ = 25 C TJ = 25 C VI = -20V to -30V, TJ = 25 C IO = 1mA to 40mA, TJ = 25 C MIN -14.40 TYP -15 65 50 25 15 39 90 1.7 MAX -15.60 250 300 150 75 UNIT V mV mV dB V V mA mA 34 6.5 1.5 0.1 Electrical Characteristics (LM79L18) (VI=10V, IO=40mA, 0C TJ125 C, CI = 0.33F, CO = 0.1F, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Load Regulation Ripple Rejection Output Noise Voltage Dropout Voltage Quiescent Current Quiescent Current Change Symbol VO VO VO RR VN VD IQ Conditions TJ = 25 C VI = -20.5V to -33V TJ = 25 C VI = -20.5V to -33V TJ = 25 C IO = 1mA to 100mA, 25 C IO = 1mA to 40mA, 25 C VI = -23V to -33V, f=120Hz F= 10Hz to 100Hz TJ = 25 C TJ = 25 C TJ = 25 C VI = -21V to -33V, TJ = 25 C IO = 1mA to 40mA, TJ = 25 C MIN -17.30 TYP -18 70 60 27 19 48 150 1.7 4.7 MAX -18.7 325 375 170 85 UNIT V mV mV dB V V mA mA 33 6.5mA 1.5 0.1 Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com LM79LXX Electrical Characteristics (LM79L24) (VI=10V, IO=40mA, 0C TJ125 C, CI = 0.33F, CO = 0.1F, unless otherwise specified. (Note 1) Parameter Output Voltage Line Regulation Load Regulation Ripple Rejection Output Noise Voltage Dropout Voltage Quiescent Current Quiescent Current Change Symbol VO VO VO RR VN VD IQ Conditions TJ = 25 C VI = -27V to -38V TJ = 25 C VI = -27V to -38V TJ = 25 C IO = 1mA to 100mA, 25 C IO = 1mA to 40mA, 25 C VI =- 29V to -35V, f=120Hz F= 10Hz to 100Hz TJ = 25 C TJ = 25 C TJ = 25 C VI = -28V to -38V, TJ = 25 C IO = 1mA to 40mA, TJ = 25 C MIN -23 TYP -24 90 75 40 25 33 200 1.7 4 MAX -25 350 300 200 100 UNIT V mV mV dB V V mA mA 30 6.5 1.5 0.1 Advance Information- These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations, computer simulations and/ or initial prototype evaluation. Preliminary Information- These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges. The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit design or permit any industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any industrial property right resulting from the use of the contents shown in the data book. Typical parameters can and do vary in different applications. Customer's technical experts must validate all operating parameters including " Typical" for each customer application. LIFE SUPPORT AND NUCLEAR POLICY Bay Linear products are not authorized for and should not be used within life support systems which are intended for surgical implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without the specific written consent of Bay Linear President. Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com |
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