MAX5027EUT+T

Voltage - Output (Min/Fixed):	30V
Base Part Number:	MAX5027
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	500kHz
Current - Output:	260mA (Switch)
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	11V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

The MAX5027EUT+T is a DC/DC buck switch-mode voltage regulator from Maxim Integrated products that offers different features and capabilities. It is a specifically designed for power supply designers who require a wide input range, high efficiency and extended thermal performance. The MAX5027EUT+T is a voltage regulator that has an adjustable output voltage and offers a 2A output current capacity that is suitable for many applications. This device has a wide input range of 2.7V to 18V and the output can be adjusted anywhere between 0.6V to 5.5V. Its switch-mode regulation control provides a steadily consistent output voltage even with line or load transients.

Types and Features

The MAX5027EUT+T is an ideal solution for power conversions due to its high efficiency, light weight, and small size. This device is available in a 6-pin, 2mmx2mm LLP package which allows for fast switching speed and reduces EMI noise. It has a maximum output current of 2A and a minimum switch frequency of 250KHz allowing designers to have high speed transient response. The MAX5027EUT+T is rated to provide up to 2A output current with good line and load regulation. Some of its features include: - A wide input range of 2.7V to 18V - Adjustable output voltage range of 0.6V to 5.5V - Over-temperature protection - External Shutdown Function - Frequency Synchronization - Internal Soft-Start

Working principle

The MAX5027EUT+T is a DC/DC converter/regulator with low-side MOSFET switch that operates in a pulse-width modulation (PWM) mode. This switching action turns the power on and off to make adjustments to the output voltage. The output voltage is controlled by the feedback pin. When the error comparator compares the feedback pin voltage against reference voltage, the error voltage is then combined with the current mode control loop. This combination controls the on-time of the power switch to regulate the output voltage.The internal soft-start feature manages the inrush current and allows the regulator to reach its steady-state output voltage quickly and safely. The external shutdown function also aids in the safe operation by providing an external signal to shut-off the device, disabling the output stage and entering into a low-power state. Finally, the device also offers an option of frequency synchronizing which allows the user to synchronize the switching frequency of the device with an external signal or clock.

Applications

The MAX5027EUT+T DC/DC converter can be used for a wide range of applications where a regulated voltage output is required. This device is especially suitable for automotive applications where the operating temperature range is from -40°C to +125°C. Its pulse-width modulation, synchronizable operating frequency and efficient operation make the MAX5027EUT+T ideal for automotive power systems and harsh environmental conditions. Other applications may include medical instruments, point-of-load voltage regulators, mobile and industrial systems for powering ASICs and processors, and many more.

Conclusion

The MAX5027EUT+T is an efficient step-down DC/DC switch-mode regulator that is suitable for many applications. It offers a wide input range with adjustable output voltage and high efficiency. Its external shutdown and frequency synchronization functions allow the user to customize the operating frequency and control the current safely and accurately. The MAX5027EUT+T presents an economic solution for efficient power conversion and regulation in a wide variety of applications.

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