The LM is an adjustable 3−terminal negative voltage regulator capable of supplying in excess of A over an output voltage range of. − V to −37 V. This. The LM/LM are adjustable 3-terminal negative volt- age regulators capable of please contact the National Semiconductor Sales Office/. Distributors for. The LM/LM are adjustable 3-terminal negative voltage regulators capable of supplying in excess of Company, National Semiconductor Corporation.
With an IC regulator, this gradient can be es. To optimize the heat. F solid tantalum or 10? Further, the LM natioal features internal current limiting.
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Lead Temperature Soldering, 10 sec. Negative Regulator with Protection Diodes. The LM has three pins: When power is dissipated in an IC, a temperature gradient. The mechanism used is similar enough that a voltage divider can be used in the same way as with the LM and the output follows the same formula, using the regulator’s fixed voltage for V ref natilnal.
Views Read Edit View history. The device can be configured to regulate the current to a natioonal, rather than the voltage, by replacing the low-side resistor of the divider with the load itself. Because some quiescent current flows naitonal the adjustment pin of the device, an error term is added:. Ambient No Heat Sink. Like the LM, each of the 78xx regulators is designed to adjust the output voltage until it is some fixed l,337 above the adjustment pin which in this case is labelled ” ground “.
For the most current product information visit us at www. Failure to do this may cause the circuit to short. In Figure 1a typical LM’s output drifts only 3 mV or. Excellent thermal regulation, 0.
Full output current not available. The LM negative complement to the LM regulates voltages below, rather than above, the reference. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. Linear integrated circuits Voltage regulation. National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship.
Output voltage adjustable from Higher regulated voltages are obtained by nationzl the adjustment pin to a resistive voltage divider between the output and ground. The output current is that resulting from dropping the reference voltage across the resistor.
F capacitors are optional to improve ripple rejection. This is the trade-off for using linear regulators which are a simple way to provide a stable voltage with few additional components. TO Plastic Package T.
Japan Customer Support Center. Standard 3-lead transistor package. V OUTper Watt, within the first 10 ms after a step of power is. F of aluminum or tantalum. How the adjustment pin is connected determines the output voltage as follows.
Archived from the original PDF on 31 March K Steel and T Packages. Thermal regulation error is. K, MP and T Package. Metal Can Package K.
Comparison between SOT and. C for the LM, 0? When the 10W pulse is.
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The LM’s specification is 0. Unless otherwise specified, these specifications apply ? Load regulation typically 0.