MAX5090AATE/V+T

Voltage - Output (Min/Fixed):	3.3V
Base Part Number:	MAX5090
Supplier Device Package:	16-TQFN (5x5)
Package / Case:	16-WQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	127kHz
Current - Output:	2A
Voltage - Output (Max):	--
Series:	Automotive, AEC-Q100
Voltage - Input (Max):	76V
Voltage - Input (Min):	6.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

MAX5090AATE/V+T is a DC-DC switching regulator which is a part of a larger category of power management ICs (PMIC). It is designed to provide a highly customizable and flexible solution for powering a wide range of designs and applications. The MAX 5090AATE is a highly efficient, one-time programmable switch-mode voltage regulator, capable of supplying up to 15A continuous and 25A peak current from a 6V input to a wide output voltage range of 0.6V-5.5V.

Application Field

MAX5090AATE/V+T is ideal for a variety of high performance and cost-sensitive applications such as cellular phones, PDA\'s, portable computers, portable media players, digital cameras, and any other application that requires a switch-mode voltage regulator for power conversion. High current capability makes it suitable for a wide range of applications including non-isolated DC/DC converters, point-of-load regulation, dedicated DC/DC down converters, and load sharing.

Features and Advantages

Max5090AATE/V+T includes a wide range of features that make it well-suited for portable and low-power applications. It features fast transient response for rapid load changes, low EMI, and a wide input voltage range of 8V to 24V. Additionally, this device integrates programmable functions such as soft start, remote shutdown, and an adjustable current limit. For high temperature applications, the MAX 5090AATE/V+T is available in an extended temperature range of -40°C to +125°C.One of the key benefits of choosing this device is its flexibility. Its one-time programmability allows users to quickly adjust the output voltage with the external resistor divider, enabling the device to meet ever-changing requirements with ease. This feature combined with its fast transient response, high efficiency, and low EMI performance make the MAX5090AATE/V+T an ideal candidate for a wide range of applications.

Working Principle

MAX5090AATE/V+T is a synchronous switch mode voltage regulator that uses an external NMOS/PMOS synchronous pair as the main switching elements. The output voltage is fixed with the help of a resistor divider, which is placed between the outpu t voltage and the power ground. The device operates in continuous conduction mode (CCM), which ensures an optimum balance between efficiency and output voltage ripple. The advantage of this mode of operation is that the output voltage is stabilized by reducing the fluctuations in the switching frequency.To achieve high efficiency, the device operates in continuous current mode (CCM). The output voltage is regulated according to the ratio between the duty cycle of the NMOS and PMOS gates. This ratio determines the voltage across the output inductor, which directly affects the output voltage. The inductor current is controlled to ensure constant output voltage as the load varies.

Conclusion

MAX5090AATE/V+T is a highly efficient and flexible switch mode voltage regulator that is ideal for a wide range of power management applications. It offers a wide range of features such as fast transient response, low input voltage range, and one-time programmability, making it well-suited for portable and cost-sensitive designs. It operates by utilizing continuous conduction mode and adjustable duty cycle control to attain fast switching frequency and efficient operation.

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