AZ494AUM-E1

Voltage - Input (Max):	36V
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	40kHz
Current - Output:	200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.95V
Series:	--
Voltage - Input (Min):	7V
Number of Outputs:	2
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AZ494AUM-E1 Application Field and Working Principle

The AZ494AUM-E1 is a highly integrated PMIC - Voltage Regulators - DC DC Switching Regulators, which is designed for applications such as Intel Atom E-Series, SoC-based system audio, digital set top box and multi-purpose microprocessor. This device integrates a Boost regulator, Linear Regulator and an LDO as well as many other components for low noise and power efficient design. It has low operating voltage of 2.7V to 17V, which makes it well suited for mobile applications and has soft start, forced PWM operation and accuracy of 0.3%. This IC also features dual output voltage of 1.5V/1.8V and output current of 1A/2A.

The basics of AZ494AUM-E1 working principle

The AZ494AUM-E1 is a regulator specifically designed for Intel Atom E-Series, SoC-based systems. It operates using an integrated boost regulator, a linear regulator, and an LDO, as well as multiple other components. The regulator can be configured to obtain a low operating voltage from 2.7V to 17V. This makes it suitable for a variety of mobile applications.The AZ494AUM-E1 consists of a two-phase synchronous buck-boost topology with a maximum conversion frequency of 1.6 MHz. The two phases are coupled in order to reduce the ripple current in the inductor, which allows for greater efficiency and smaller component size. The low output voltage and current are better managed by the devices utilizing the LDO feature and the PWM.The internal LDO supplies the external load with a constant voltage regardless of the input voltage. It is essential in the control circuit in order to prevent any overvoltage damage to the components. The output voltage of the LDO can be varied with a set of resistors.The AZ494AUM-E1 features a soft start, and forced PWM operation is enabled. This avoids the system from rebooting when transitioning from one power state to another. Moreover, a built-in accuracy of 0.3% guarantees the consistency of the output.

Advantages of AZ494AUM-E1

The AZ494AUM-E1 offers many advantages over other PMIC - Voltage Regulators - DC DC Switching Regulators. Its low operating voltage allows it to work in mobile applications, and its dual output voltage of 1.5V/1.8V and current of 1A/2A makes it suitable for a variety of applications. Additionally, the presence of the LDO assures continuous protection, while the soft start and forced PWM operation helps the system transition between power states without rebooting. Finally, the 0.3% accuracy ensures the consistency of the output voltage and current.

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