LMC7660IM

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The LMC7660IM is a highly efficient, 3-Pin voltage regulator which works by regulating DC-DC switching waveforms. It is typically used to boost a voltage created by solar or battery sources and also stores and regulates a constant output voltage through the use of an internal flyback power supply. This allows the regulator to extend the life of water-proofed or weather-proofed devices, increase their efficiency and reduce the risk of unexpected shutdowns.

The LMC7660IM has a switching frequency of 1.5MHz and operates from a 2.5V to 18V input voltage with a maximum output voltage of 28V. This makes it ideal for a wide range of applications including indoor and outdoor devices in both industrial or commercial settings. It also features built-in protection features such as temperature sensing and current sensing which help to further improve its reliability in harsh or extreme environments.

Aside from its versatile voltage regulation, the LMC7660IM also comes with a set of features that make it suitable for a variety of applications. This includes undervoltage lockout, current limiting, reverse current protection, thermal protection, and output overload protection. It also allows for adjustable output voltage ranges, which make it easier to customize the output depending on the application.

The primary application areas of the LMC7660IM include renewable energy, LED driving, automotive OEM, industrial control, smart home, consumer electronics and point-of-load (POL) power supplies. It offers high-efficiency operating modes and a wide voltage range, making it a great choice for applications requiring a reliable, efficient and cost-effective voltage regulator.

The voltage regulation of the LMC7660IM is accomplished through a dual closed-loop system using a primary and a secondary loop. The primary loop is used to sense changes in the load, whereas the secondary loop is used to regulate the output voltage and manage the output power. The primary loop consists of a voltage reference, an error amplifier and a regulating transistor which is connected to the output load. The secondary loop consists of a device driver, an oscillator and an N-channel MOSFET which are all connected to the primary loop.

The operation of the LMC7660IM is based on a self-oscillating mode which helps to maintain constant output voltage by detecting the voltage level of the power source and adjusting the output level accordingly. This is accomplished by the oscillator providing pulse signals to the N-channel MOSFET which then drives the primary loop. The error amplifier in the primary loop then compares the output voltage from the regulating transistor to the reference voltage and adjusts the output voltage accordingly. Depending on the output power of the device, the drain voltage of the regulating transistor is adjusted to maintain a constant output voltage.

The LMC7660IM presents a versatile and cost-competitive solution for many applications such as renewable energy, LED driving, automotive OEMs, industrial control, smart home, consumer electronics and POL power supplies, as well as devices that require voltage regulator with high efficiency operating modes and wider voltage range. Its built-in protection features also ensure improved reliability and performance in a variety of harsh and extreme environments.

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