MAX15004AAUE/V+T

Frequency - Switching:	15kHz ~ 500kHz
Base Part Number:	MAX15004
Supplier Device Package:	16-TSSOP-EP
Package / Case:	16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable, Frequency Control, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	No
Duty Cycle (Max):	50%
Series:	Automotive, AEC-Q100
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 40 V
Output Phases:	1
Number of Outputs:	1
Topology:	Boost, Flyback, SEPIC
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MAX15004AAUE/V+T is a high-output, DC-to-DC switching regulator controller specifically designed to enable complete, highly integrated solutions perfect for power management applications, including cellular phones, recording devices, and other battery-powered systems. This application note overviews the product’s functions and features, and provides a detailed description of the application field, working principle and main features.

Application Field

The MAX15004AAUE/V+T is optimized for lightweight, high-performance power supply solutions targeting portable, battery-powered products. The device integrates a wide input voltage range and maximum of 4A output current, allowing for very high power dense designs.The device primarily targets applications such as cellular handsets and other portable devices that require high current and output voltage accuracy, both under static and dynamic load conditions. It is also ideal for use in high-current, low-voltage applications requiring very high conversion efficiency. The device is also suitable for multi-rail systems and can be used to build step-down, step-up, and other power configurations.Overall, the MAX15004AAUE/V+T provides a high-performance, robust and efficient solution to power management needs.

Working Principle

The MAX15004AAUE/V+T is based on a Pulse Width Modulation (PWM) switching regulator topology. The main component of the device is the P-channel MOSFET, which acts as a power switch. This MOSFET is activated and deactivated in a cyclic way, allowing a constant output voltage to be maintained. This PWM switch is triggered by a comparator which monitors and compares the output voltage to a reference voltage.The MAX15004AAUE/V+T is able to switch up to 4A of current and allows for up to 95% efficiency when used in a step-down configuration. The device also features a fast start-up time and wide operating range, which allows the device to be used in a wide range of portable applications. Additionally, the device includes integrated protection features, such as over-temperature, over-voltage and over-current protection which further ensure reliability and robustness of the solution.

Main Features

The MAX15004AAUE/V+T features a wide operating range of 2.5V to 5.5V, with a maximum output current of 4A. The device has a fast start-up time of 2.2us and a switching frequency of 500kHz. Additionally, the device has a high efficiency (> 95%), allowing for high-power density designs. The device also provides integrated protection features such as, current limitation type over-current protection, and over-voltage, and over-temperature protection.The MAX15004AAUE/V+T is also capable of supporting both step-down and step-up configurations. In step-down applications, the device maintains an output voltage that is lower than the input voltage and converts the excess energy into heat. In step-up applications, the device maintains an output voltage that is higher than the input voltage and can be used to power loads from a battery source. The device also allows for multiple output configurations such as a simultaneous output, dual-channel output, and can be used to power single-rail systems as well.Overall, the MAX15004AAUE/V+T is an ideal device for high current and output voltage accuracy applications, due to its wide input voltage range, fast start-up time, and integrated protection features. It can be used to build step-down, step-up and other power configurations, making it perfect for use in portable and battery-powered products.

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