ADM660ARZ-REEL Integrated Circuits (ICs)

ADM660ARZ-REEL Application Field and Working Principle

ADM660ARZ-REEL is a low dropout regulator of the DC-DC switching regulator family, belonging to the category of PMIC (Power Management Integrated Circuit). It was designed to generate reliable and stable output voltage, using a relatively small number of external components. The device is ideal for use in surveillance camera and Ethernet applications, as well as in low power communication and embedded microcontroller products.

The DC-DC switching regulator is a type of voltage regulation circuit which is capable of producing an output voltage ripple proportional to the switching frequency. Switching regulator circuits are usually classified into two groups: linear regulating and switching regulating. Linear regulating circuits use linear voltage regulators and associated components with low sources to produce reliable and constant output voltage. On the contrary, switching regulators employ power semiconductors, or transistors, to efficiently switch power from one rail to the other and provide low dropout (LDO) performance. ADM660ARZ-REEL belongs to the latter group: it works as a low dropout (LDO) switch mode voltage regulator, capable of both providing constant voltage and delivering a high power density.

The ADM660ARZ-REEL operates by using a charge pump (or an adjustable reference voltage) as a reference to amplify (or regulate) the input voltage to the desired output voltage. As the reference voltage changes, the charge pump produces an input voltage to the power switch. This voltage is then compared with the reference voltage to determine the current across the inductor, thereby regulating the output voltage. The circuit also features an adjustable current limit and thermal shutdown protection, making it more versatile and safe to use. Power switch ON/OFF operation and switching frequency are fully programmable via the control pin, making it suitable for a wide range of applications.

Compared to linear regulators, the switching regulator circuit design offers two important benefits: higher efficiency operation and increased power density. The input/output range of the ADM660ARZ-REEL is 2V to 24V, making it suitable for most applications. The device also utilizes an internal current limit circuit to protect against short circuit and exceeds current conditions. Its low power consumption and high power efficiency makes it an ideal candidate for embedded applications where a minimal power budget is the primary concern.

In summary, the ADM660ARZ-REEL is an advanced DC-DC switching regulator that is capable of delivering constant voltage and high power density. It is suited for applications such as surveillance camera and Ethernet, low power communication and embedded microcontroller products. It features programmable current limit and thermal shutdown protection, as well as an adjustable current limit and switching frequency. Its low power consumption and high power efficiency make it an ideal choice for embedded applications.