MAX20735EPL+

Voltage - Input (Max):	16V
Supplier Device Package:	15-FCQFN (9x4.15)
Package / Case:	15-VFQFN, FCQFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	400kHz ~ 900kHz
Current - Output:	40A
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	0.65V
Series:	--
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Cut Strip

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MAX20735EPL+ Application Field and Working Principle

MAX20735EPL+ is a DC-DC switching regulator which maximizes power efficiency while minimizing the total system cost. It is designed to save board space by operating across multiple supply voltages and operating in extremely low power modes. It is ideal for powering portable, handheld and wall power designs, where board space and efficiency are important.

Field of Application

The MAX20735EPL+ is a high efficiency DC-DC switching regulator ideal for powering a wide range of devices. It has an adjustable, two-phase buck conversion topology with an operating frequency of 50 kHz to 400 kHz and is capable of delivering up to 10 A of current at a voltage output range of 0.9 V to 5.5 V. It can operate in an extremely low power mode at an efficiency of up to 98 percent making it ideal for powering portable and handheld devices. The device is also suitable for wall power designs, where board space and efficiency are key.

Features and Benefits

The MAX20735EPL+ is designed to save board space. Its two-phase Buck conversion operates across multiple supply voltages, reducing the total number of components required. This allows for higher power density and smaller circuit footprints. Additionally, the voltage output range can be easily adjusted, making the device highly versatile in a wide range of applications.The device features an intelligent thermal control system with four levels of temperature protection (OTP, OTEP, TSD, and TMS). This allows for safe operation in a wide range of temperature conditions. Low EMI options, current monitoring, and output voltage tracking are also available for applications with strict conducted EMI standards.Other features such as short-circuit, over-temperature and over-voltage protections, and programmable soft start make the MAX20735EPL+ ideal for a variety of applications.

Working Principle

The MAX20735EPL+ works by converting a higher input voltage to a lower output voltage through the use of Buck switching technology. This is achieved when an external MOSFET is turned on and off by the internal control logic.When the MOSFET is on, the output voltage is supplied by the input voltage, and when the MOSFET is off, the output voltage is provided by a smaller capacitor that charges during the MOSFET on time. The size of the capacitor and its switching frequency determine the amount of voltage dropped and the total output voltage.The resistive losses during the MOSFET on time are minimal, allowing for a high efficiency rate that can reach 98%. Additionally, the switching frequency is adjustable allowing for an optimal trade-off between efficiency and power.

Summary

The MAX20735EPL+ is a DC-DC switching regulator which maximizes power efficiency while minimizing the total system cost. It has an adjustable, two-phase buck conversion topology with an operating frequency of 50 kHz to 400 kHz and is capable of delivering up to 10 A of current at a voltage output range of 0.9 V to 5.5 V. It can operate in an extremely low power mode at an efficiency of up to 98 percent making it ideal for powering portable and handheld devices. The device features an intelligent thermal control system, programmable soft start, and short-circuit, over-voltage and over-temperature protections for a variety of applications. The MAX20735EPL+ is an ideal solution for saving board space and providing high efficiency in the most demanding environments.

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