LM320L Datasheet | National Semiconductor

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 100m A. These devices were designed using the latest puter techniques for optimizing the packaged IC thermal/electrical performance. The LM79LXXAC series, even when bined with a minimum output pensation capacitor of 0.1µF, exhibits an excellent transient response, a maximum line regulation of 0.07% VO/V, and a maximum load regulation of 0.01% VO/m A. The LM320L/LM79LXXAC series also includes, as selfprotection circuitry: safe operating area circuitry for output transistor power dissipation limiting, a temperature independent 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 bined 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 100m A n Easily pensated 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% VOUT/V n Maximum load regulation less than 0.01% VOUT/m A n See AN-1112 for micro SMD considerations Typical Applications Fixed Output Regulator Adjustable Output Regulator - Required if the regulator is located far from the power supply filter. A 1µF aluminum electrolytic may be substituted. - - Required for stability. A...