LM340LAZ-5.0/NOPB

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The LM340LAZ-5.0/NOPB is a three-terminal adjustable voltage regulator from Texas Instruments (TI). This regulator type belongs to the family of linear voltage regulators. The voltage regulator provides 5 A output current and its output voltage ranges between 1.2 and 37 V. Typical application fields are computers, networking, data transmissions, digital media, conditioning of automotive systems and audio amplifiers. The LM340LAZ-5.0/NOPB can be used in several system configurations and with different power supply scenarios. It offers a wide input voltage range with an adjustable output voltage and an add on feature such as excellent line and load regulation, good ripple rejection, and low internal temperature. The LM340LAZ-5.0/NOPB is mainly intended for portable applications where board space and power-densities are critical. The low drop out voltage combined with the low power loss at high switching frequencies make it ideal for high efficiency systems.The LM340LAZ-5.0/NOPB is a three-terminal adjustable voltage regulator. It can be used to supply fixed voltage or adjustable output from a variety of fixed or adjustable input supplies. The output is internally set to 5.0V, but the voltage can be adjusted from 1.2 V to about 37V by using a external resistor. The LM340LAZ-5.0/NOPB features an internal power limiting circuit and current foldback protection. It can provide up to 5A of output current. The maximum power dissipation is 25W.The LM340LAZ-5.0/NOPB is based on the voltage regulator principle. A voltage regulator is a device that supplies a voltage of constant level or magnitude, regardless of the load current or output voltage. It consists of an input which receives the incoming direct current and output terminals supplying the output voltage. The LM340LAZ-5.0/NOPB is a linear voltage regulator which regulates the output voltage with a transconductance amplifier. The voltage amplifier has two inputs, a reference voltage input and a feedback voltage input. The output of the amplifier is connected to the control terminal of a series voltage regulator. The voltage regulator has an adjustable reference voltage connected to its input, and the output of the amplifier is fed back to the reference input, thereby regulating the output voltage of the regulator.The LM340LAZ-5.0/NOPB has an internal voltage reference in the form of a 3-terminal voltage divider. It is connected to the reference and feedback inputs of the transconductance amplifier. The reference input is adjustable with an external resistor, and its range is about 1.2V to 37V. The reference input is used to control the output voltage which is the same as the reference voltage. The feedback input is connected to the output voltage which is then compared to the reference voltage. If the feedback input voltage is lower than the reference voltage, the output voltage will be increased until the two voltages are equal. The opposite is true when the feedback voltage is higher than the reference voltage.The LM340LAZ-5.0/NOPB also offers good line and load regulation with an internal power limiting circuit and current foldback protection. It has low dropout voltage, low power dissipation and a wide input voltage range combined with high efficiency and fast transient response. The voltage gain for the amplifier is relatively high and is adjustable through the external resistor. The feedback is also adjustable with an external resistor. The feedback range is from 1.2V to 37V, which is adjustable through the external resistor.The LM340LAZ-5.0/NOPB is an adjustable voltage regulator for a variety of applications. Its wide input voltage range, adjustable output voltage and excellent line and load regulation make it ideal for portable applications. The low drop out voltage and low power dissipation combined with the current foldback protection and excellent ripple rejection features provide superior performance and power savings. Its internal voltage reference and transconductance amplifier along with the adjustable external resistors making it an ideal choice for various power supply scenarios and system configurations.

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