MAX16907RATE/V+T

MAX16907RATE/V+T Application Field and Working Principle

Introduction

The MAX16907RATE/V+T is a highly efficient, multi-input DC-DC converter that combines buck, boost, and flyback topologies into a single IC. It offers high efficiency and range of output voltages in a small form factor. It is ideally suited for load step applications and a variety of battery-powered automotive applications, including in-vehicle infotainment systems. The MAX16907RATE/V+T provides excellent transient response and high output current, efficient operation over input voltage range, and maintains a low profile to enable long-lasting cost savings.

Application Field

The MAX16907RATE/V+T is ideal for a wide range of applications, particularly those that require a high efficiency, such as in-vehicle infotainment systems. Its highly efficient design helps to preserve battery life and reduce on-board power requirements. The device is also well suited for load step applications that require high current performance and a wide range of output voltages.

Functional Overview

The MAX16907RATE/V+T incorporates a compact, highly efficient switching regulator with an integrated external driver, thermal protection, short-circuit protection and minimum off-time control to minimize power dissipation. The peak switch current is monitored by sensing the voltage across the power supply inductor. The current can be limited in steady-state operation using average on-time control or pulse-width modulation (PWM). The internal MOSFETs are supplemented with a pair of external driver MOSFETs to provide additional high- current gain, while the chip\'s on-board oscillator and synchronous rectifier provide deadtime control. The integrated step-down switching regulator has an adjustable input voltage range of 1.8V to 20V, and provides different output voltages and current limits for the buck, boost and flyback stages.

Operation

The MAX16907RATE/V+T is a multi-input, dual-output, DC/DC switching regulator. It is powered directly from an external power source and can also accept a wide range of input voltages, from 1.8V to 20V. It can supply power to two separate voltage rails simultaneously at a single output voltage, with a maximum output current of 2A.As input voltage increases, the MAX16907RATE/V+T increases the peak switch current. This keeps the output voltage constant. The integrated synchronous rectifier minimizes power dissipation, allowing the device to operate at higher switching frequencies with reduced power losses. The chip also incorporates a soft start feature, helping to minimize output voltage spikes during startup. In addition, the device can also be used to regulate the output voltage of a buck, boost or flyback topology.

Conclusion

The MAX16907RATE/V+T is an ideal choice for high efficiency applications, such as in-vehicle infotainment systems. Its compact size and highly efficient design help minimize power dissipation and maximize battery life. The device is also well suited for load-step applications, with a wide range of input voltages and output currents. It incorporates several features, such as integrated external drivers, thermal protection, short-circuit protection and minimum off-time control, to further enhance efficiency and reliability.

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