LM337 NATIONAL PDF

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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Linear integrated circuits Voltage regulation. F of aluminum or tantalum. For large voltage differences, the energy lost as heat can ultimately be greater than that provided to the circuit. Load regulation typically 0.

Japan Customer Support Center. This is the trade-off for using linear regulators which l,337 a simple way to provide a stable voltage with few additional components. Although power dissipation is internally limited, these specifications. Linear lmm337 inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input and output. In packages with a heat-dissipating mounting 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.

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The LM is a popular adjustable positive linear voltage regulator. F solid tantalum is required naitonal if regulator is more than 4″ from. Ambient No Heat Sink. Output is short circuit protected. V OUTper Watt, within the first 10 ms after a step of power is.

2x National Semiconductor IC LM337AT Lm337

It was designed by Robert “Bob” Pease. Lead Temperature Soldering, 10 sec.

TO Plastic Package T. This performance is thus well inside the specification. Metal Can Package H. SOT and TO packages, and 0. Maximum Power Dissipation vs. By using this site, you agree to the Terms of Use and Privacy Policy. Metal Can Nationzl K. F, D1 protects the LM in case the input.

C, 10 nationla Pulse. Retrieved 31 March For the most current product information visit us at www. Europe Customer Support Center.

Because some quiescent current flows from the adjustment pin of the device, an error term is added:. The LM has three pins: The mechanism used is similar enough that a voltage divider can be used in the same way as nationnal the LM and the output follows the same formula, using the regulator’s fixed voltage for V ref e.

Figures 3, 4 show the information for the SOT package. The device can be configured to regulate the current to a load, rather than the voltage, by replacing the low-side resistor of the divider with the load itself. In Figure 1a typical LM’s output drifts only 3 mV or. The output current is that resulting from dropping the reference voltage across the resistor. K, MP and T Package.

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2x National Semiconductor IC LMAT Lm | eBay

The LM relates in the same way to the fixed 79xx regulators. Changes in output voltage due to heating effects are. Full output current not available. From Wikipedia, the free encyclopedia. This page was last edited on 6 Julyat When the 10W pulse is. F capacitors are optional to improve ripple rejection. K Steel and T Packages. Because of this, the error term in the formula cannot be ignored and the value of the low-side resistor becomes more critical.

Plastic Package Soldering, 4 sec.

Electrical Characteristics Note 1. The LM’s specification is 0. Negative Regulator with Protection Diodes. With an IC regulator, this gradient can be es. Full output current not available at high input-output voltages. National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves.