LM/LM 5-Amp Adjustable Regulators. General Description. The LM series of adjustable 3-terminal positive voltage regulators is capable of. LM LM 5-Amp Adjustable Regulators. General Description. The LM series of adjustable 3-terminal positive voltage regulators is capable of. The LM is rated for −55˚C ≤ TJ ≤ +˚C, and the LM is rated for .. Reproduction of TI information in TI data books or data sheets is permissible only if.
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Regulator with Line Resistance in Output Lead. Capacitor wikipedialookup. Besides replacing fixed regulators or discrete designs, the LM is useful in a wide variety of other applications. In general, the best type of capacitors to use are solid tantalum. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance.
The LM family is supplied in a standard 3-lead transistor package. For example, a 15V regulator with 0. Regulator with Protection Diodes.
PDF LM338K Datasheet ( Hoja de datos )
Control system wikipedialookup. The bypass capacitor on the adjustment terminal can discharge through a low current junction. For this reason, 0.
Although the surge is short, there is enough energy to damage parts of the IC. Ceramic capacitors are also good at high frequencies, but some types have a large decrease in capacitance at frequencies around 0. Discharge occurs when either the input or output is shorted. Plan to be about 3V about the desired output voltage. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted. Integrating ADC wikipedialookup.
The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators. This bypass capacitor prevents ripple form being amplified as the output voltage is increased.
LMK Hoja de datos ( Datasheet PDF ) – 5A Positive Adjustable Voltage Regulator
Power inverter wikipedialookup. Ohm’s law wikipedialookup. Regulation is measured at constant junction temperature.
The adjustment terminal can be bypassed to ground on the LM to improve ripple rejection. Distribution management system wikipedialookup. The dropout voltage of the IC regulator is about 1. Resistive opto-isolator wikipedialookup. The LM voltage regulators can provide up to 1. Created 28 July Rectifier wikipedialookup.
Transistor wikipedialookup. Careful circuit design has resulted in outstanding load and line regulation comparable datasheef many commercial power darasheet. This occurs with values between pF and pF. This eliminates line drops from appearing effectively in series with the reference and degrading regulation.
Variable-frequency drive wikipedialookup. Solid tantalum capacitors have low impedance even at high frequencies.
LMK Datasheet(PDF) – National Semiconductor (TI)
When an output capacitor is connected to a regulator and the input is shorted, the output capacitor will discharge into the output of the regulator. Also included on the chip are thermal overload protection and safe area protection for the power transistor. Surge protector wikipedialookup.
The current limit circuitry allows peak currents of up to 12A to be drawn from the regulator for short periods of time. Islanding wikipedialookup. With the TO-3 package, it is easy to minimize the resistance from the case to the lm33k8 resistor, by using 2 separate leads to the case.
Changes in output voltage due to heating effects are taken into account separately by thermal rejection.
Mains electricity wikipedialookup. Electrical ballast wikipedialookup. Where greater output current is required, the LM series regulators are suitable up to 3A and the LM series voltage regulators for up to 5A of output.