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.

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F solid tantalum or 10? This is the trade-off for using linear regulators which are a simple way to provide a stable voltage with few additional components. If the adjustment pin is connected to ground the output pin delivers a regulated voltage of 1.

2x National Semiconductor IC LM337AT Lm337

By using this site, you agree to the Terms of Use and Privacy Policy. National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves.

F, D1 protects the LM in case the input. Adjustable Lab Voltage Regulator. 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 e.

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The thermal regulation of a. The LM relates in the same way to the fixed 79xx regulators. Figures 3, 4 show the information for the SOT package. Note that the load regulation error.

Adjustable Negative Voltage Regulator. V OUTper Watt, within the first 10 ms after a step of power is. F of aluminum or tantalum. Like the LM, each of the 78xx regulators is designed to adjust the output voltage until it is some fixed voltage above the adjustment pin which in this case is labelled ” ground “. The LM is an adjustable analogue to the popular 78xx fixed regulators.

In packages with a heat-dissipating lm3337 tab, such as TOthe tab is connected internally to the output pin which may make it necessary to electrically isolate the tab or the heat sink from other parts of the application circuit.

Distributors for availability and specifications. Comparison between SOT and.

Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage nayional between input and output. Full output current not available at high input-output voltages.

F solid tantalum is required only if regulator is more than 4″ from. This page was last edited on 6 Julyat Full output current not available.

LM 3-Terminal Adjustable Negative Regulators « Datasheet Component Blog

When power is dissipated in an IC, a temperature gradient. It was designed by Robert “Bob” Pease. High Stability V Regulator. Ambient No Heat Sink. From Wikipedia, the free encyclopedia. Failure to do this may cause the circuit to short. Internal thermal overload protection.


In Figure 2when the 10W pulse is applied for ms.

Excellent thermal regulation, 0. Substances” as defined in CSPS2. The circuit design has been opti. K, MP and T Package. However, the 78xx device’s quiescent current is substantially higher and less stable. In other projects Wikimedia Commons. National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship.

This performance is thus well inside the specification. Views Read Edit View history. Higher regulated voltages are obtained by connecting the adjustment pin to a resistive voltage divider between the output and ground. The LM is designed to compensate for these fluctuations internally, making such measures unnecessary.

Japan Customer Support Center. The output current is that resulting from dropping the reference voltage across the resistor. Archived from the original on 17 December Retrieved 31 March Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle.

Linear integrated circuits Voltage regulation.

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