EL7520ILZ

EL7520ILZ Application Field and Working Principle

The EL7520ILZ is an integrated, low-noise, low-dropout, low-power-supply linear regulator featuring 250mA output capability and a flashing LED driver. This voltage regulator is intended for use in PC notebook, subnotebook, and similar PowerPC systems. It is suitable for a wide range of applications, from low-power portable devices to high-end PCs.

The EL7520ILZ is a low-noise, low-dropout, low-power-supply linear regulator that has been designed to provide high efficiency and low noise performance. It includes a power-on reset and a flash LED driver circuitry. The POR (Power-on Reset) circuit monitors the input supply and can reset the system in the event of an unexpected supply voltage drop or brown out, thus preventing data corruption.

The EL7520ILZ\'s integrated programmable flash LED driver is designed to drive LEDs in various applications such as status indicator, warning and alert indications. It supports single forward-drive, a two-level load, a low-battery detection, and a low-voltage battery detect. The integrated driver operates with a frequency of up to 500kHz and provides a programmable pulse duration. The EL7520ILZ also includes an adjustable current limit to protect the LEDs from excessive current.

The EL7520ILZ has a dual operating mode to provide maximum control flexibility. In the first mode, the device regulates the output voltage to the target value. In the second mode, the device monitors the voltage at the output and, when the voltage drops below the programmed threshold, the device switches the output to a low power state. The low power state saves power and helps protect the device from overheating.

The EL7520ILZ also includes an ultra-low power startup and shutdown scheme to conserve power while the device is not in use. The device can be programmed to turn on and off in any combination of modes as well as a programmable delay time. This feature helps to reduce the power consumption of the system when the device is not in use.

In summary, the EL7520ILZ integrated linear regulator is designed for a wide range of portable and desktop applications. It features adjustable output voltage and current, low-noise performance, low-power-supply, POR (Power-on Reset) and LED driver circuitry, and ultra-low power operation. This integrated voltage regulator provides maximum flexibility in system design and is perfect for PC notebooks, subnotebooks, and other PowerPC applications.