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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2x National Semiconductor IC LM337AT Lm337

Thermal regulation depends on IC layout. F solid tantalum or 10?

Plastic Package Soldering, 4 sec. F, D1 protects the LM in case the input. Selected devices with tightened tolerance reference voltage available. K, MP and T Package. Further, the LM series features internal current limiting. Because some quiescent current flows from the adjustment pin of the device, an error term is added:.

Electrical Characteristics Note 1. The LM is an adjustable analogue to the popular 78xx fixed regulators. National Semiconductor certifies ntional the products and packing materials meet the provisions of the Customer Products Stewardship. National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves.

Output voltage adjustable from Load regulation typically 0.

  IEC 60095 PDF

Archived from the original on 17 December However, the 78xx device’s quiescent current is substantially higher and less stable. High Stability V Regulator. F aluminum electrolytic required for.

When power is dissipated in an IC, a temperature gradient. K Steel and T Packages. To optimize the heat. Archived from the original PDF on 18 April This is the trade-off for using linear regulators which are a simple way pm337 provide a stable voltage with few additional components. The output current is that resulting from dropping the reference voltage across the resistor.

V OUTper Watt, within the first 10 ms after a step of power is. Maximum Power Dissipation vs. Japan Customer Support Center.

The LM negative complement to the LM regulates voltages below, rather than above, the reference. Please see AN for power enhancement techniques to.

LM 3-Terminal Adjustable Negative Regulators « Datasheet Component Blog

Life support devices or systems are devices or systems. Ambient No Heat Sink. The LM’s specification is 0.

Europe Customer Support Center. Excellent thermal regulation, 0. The alternative is to use a switching voltage regulator which is l337 more efficient but has a larger footprint and requires a larger number of associated components. Adjustment Pin Current Charge.

The LM has three pins: In use an LM commonly requires a heat sink to prevent the operating temperature rising too high.

LMLZ Texas Instruments National Semiconductor | Ciiva

In Figure 2when the 10W pulse is applied for ms. Distributors for availability and specifications. 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.


The device can be configured to regulate the current to a load, rather than the voltage, by replacing the low-side nwtional of the divider with the load itself.

F of aluminum or tantalum. Regulation is measured at constant junction temperature, using pulse testing with a naional duty cycle.

Although power dissipation is internally limited, these specifications. A critical component is any component of a life support. Archived from the original PDF on 31 March For large voltage differences, the energy lost as heat can ultimately be greater than that provided to the circuit.

Note that the load regulation error. Output capacitors in the range natiknal 1? Figures 3, 4 show the information for the SOT package. Wikimedia Commons has media related to LM and Voltage regulator circuits. Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input and output. Metal Can Package H. It was designed by Robert “Bob” Pease.