MAX15153ATJ+T

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Introduction

MAX15153ATJ and MAX15153ATJ+T are single-switch integrated Power Management Integrated Circuits (PMICs), specifically designed to support the DC-DC voltage conversion needs of product applications. These power solutions are suitable for a variety of minor power load sources or batteries, especially those in communications, consumer, industrial, or automotive products. Each is optimized for flexibility and efficiency, allowing designers to reduce BOM, board space, and heat-sink solutions. This article will focus on the application field and working principle of the MAX15153ATJ+T voltage regulators.

Features and Benefits

• Requires no compensation circuitry and no loop support components
• Programmable frequency range of 0.3MHz to 10MHz
• Integrated overvoltage protection (OVP) and reverse-current protection
• Integrated Programmable Current-Limiting Resistor (PCL) for improved efficiency
• Extremely low quiescent current of 500nA
• Provides wide input and output voltage range, from 4.5V to 38V
• High-efficienct internal power MOSFET with up to 1.7A peak output current

Application Field

The MAX15153ATJ+T can be used to power various application, such as:

• Smart phones and hand-held computing devices
• Bluetooth tracking systems and RFID tags
• Small sensors, such as temperature and pressure sensors
• Wearable electronics
• Automotive systems, including sensor nodes and active BMS (Battery Management System)
• Healthcare equipment, such as electronic stethoscopes
• Industrial monitoring

The wide input voltage range and improved efficiency of the MAX15153ATJ+T make it ideal for applications that require higher efficiency, such as extended battery life in mobile devices or better performance from wearables.

Working Principle

The MAX15153ATJ+T is a single-switch integrated PMIC that uses a fixed operating frequency buck converter topology. It utilizes an internal power MOSFET to switch current through the inductor. The switching frequency is programmable and allows for a wide range of modulation strategies, including variable on-time, variable frequency, and variable slew rate.

The integrated PCL provides adjustable current limiting, while the integrated OVP provides protection against overvoltage conditions. The low quiescent current makes the MAX15153ATJ+T ideal for battery-powered applications. It also eliminates the need for compensation circuitry and additional loop support components.

Conclusion

The MAX15153ATJ+T is a single-switch, integrated PMIC that enables design flexibility and efficiency to power various applications. It can support a wide range of input and output voltages, while offering an integrated OVP, PCL, and low quiescent current. The MAX15153ATJ+T allows designers to eliminate the need for additional compensation circuitry and loop support components, which can save time and money. It is perfect for applications requiring higher efficiency, such as mobile devices and wearables.

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