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LM79L15ACTL Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM79L15ACTL Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 8 page LM320L/LM79LXXAC Series 3-Terminal Negative Regulators General Description The LM320L/LM79LXXAC dual marked series of 3-terminal negative voltage regulators features fixed output voltages of −5V, −12V, and −15V with output current capabilities in excess of 100mA. These devices were designed using the latest computer techniques for optimizing the packaged IC thermal/electrical performance. The LM79LXXAC series, even when combined with a minimum output compensation capacitor of 0.1µF, exhibits an excellent transient response, a maximum line regulation of 0.07% V O/V, and a maximum load regulation of 0.01% V O/mA. The LM320L/LM79LXXAC series also includes, as self- protection circuitry: safe operating area circuitry for output transistor power dissipation limiting, a temperature indepen- dent short circuit current limit for peak output current limiting, and a thermal shutdown circuit to prevent excessive junction temperature. Although designed primarily as fixed voltage regulators, these devices may be combined with simple external circuitry for boosted and/or adjustable voltages and currents. The LM79LXXAC series is available in the 3-lead TO-92 package, 8-lead SOIC package, and the 6-Bump micro SMD package. The LM320L series is available in the 3-lead TO-92 package. For output voltage other than −5V, −12V and −15V, the LM137L series provides an output voltage range from 1.2V to 47V. Features n Preset output voltage error is less than ±5% overload, line and temperature n Specified at an output current of 100mA n Easily compensated with a small 0.1µF output capacitor n Internal short-circuit, thermal and safe operating area protection n Easily adjustable to higher output voltages n Maximum line regulation less than 0.07% V OUT/V n Maximum load regulation less than 0.01% V OUT/mA n See AN-1112 for micro SMD considerations Typical Applications Fixed Output Regulator 00774801 *Required if the regulator is located far from the power supply filter. A 1µF aluminum electrolytic may be substituted. **Required for stability. A 1µF aluminum electrolytic may be substituted. Adjustable Output Regulator 00774803 −V0 = −5V − (5V/R1 + IQ) • R2, 5V/R1 > 3IQ Connection Diagrams 6-Bump micro SMD 00774820 Bump Side Down TO-92 Plastic Package (Z) 00774802 Bottom View March 2006 © 2006 National Semiconductor Corporation DS007748 www.national.com |
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