EL5226IR

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The EL5226IR is a 500mA peak output current linear regulator controller that can be used for a variety of applications including on-board the buck converters and DC/DC converters. It is part of a family of linear voltage regulators used to provide adjustable output voltage. It features low output noise, short settling time, low Iq, and 200mV to 1.45V output range. It is designed to reduce the cost and complexity of designing a linear voltage regulator.

The EL5226IR integrates a pulse-width-modulated (PWM) current mode DC/DC controller, voltage error amplifier, driver stage, and high-side current sense amplifier with a current-limit comparator. It uses a PWM control loop for fast load transient response and is suitable for a wide range of output currents.

The EL5226IR is capable of providing energy efficient, high performance regulation of the output voltage in applications such as single load systems, dual load systems, and sequencing applications. The control loop is operated in current mode control, with peak current limit and slew rate control. This architecture can be used in fixed-frequency, pulse-width modulation (PWM), or pulse-frequency modulation (PFM) control mode. The EL5226IR also features output current setting through an analog voltage or current setpoint as well as short-circuit protection and overvoltage protection.

The EL5226IR is designed to operate in a limited voltage margin that is monitored by a low power comparator. It features low minimum voltage, low quiescent current, over-current protection, slew rate control, and short-circuit protection, making it suitable for many applications.

To ensure precise output voltage, the EL5226IR provides a precision bandgap reference voltage with low power consumption and low noise. It has a low output impedance that ensures precise regulation, and its fast settling time ensures the transient response is quick even in challenging conditions.

The EL5226IR can provide the necessary control and regulation for boost, buck, and buck-boost converters. It is capable of operating in PWM and PFM modes for energy optimization, ensuring that output voltage is precisely regulated above and below the input voltage level.

In conclusion, the EL5226IR is an efficient and cost-effective linear voltage regulator which features short settling time, accurate regulation, low quiescent current, high current capability, and excellent transient response. It is suitable for a variety of low-input voltage, single-load, and dual-load applications.

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