MAX8569AEUT+T

Voltage - Output (Min/Fixed):	2V
Base Part Number:	MAX8569
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	--
Current - Output:	750mA (Switch)
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MAX8569AEUT+T Application Field and Working Principle

Introduction

The MAX8569AEUT+T is a synchronous step-down DC-DC converter developed by Maxim Integrated. It is a high performance and high efficiency switching regulator with an advanced peak current mode control scheme. It supports an input voltage of up to 18V and an output voltage of up to 2.5V. It can deliver up to 1A of load current and has a high efficiency of up to 96%. It also features a low input current of 10μA in shutdown mode and a low quiescent current of 45μA. Additionally, the MAX8569AEUT+T has a wide input voltage range of 3.15V to 18V and can be used in various applications such as automotive and industrial systems.

Overview

The MAX8569AEUT+T is a synchronous step-down DC-DC converter with a peak current mode control scheme. It consists of an internal low-side and high-side MOSFETs and an external set of resistors, capacitors, and an inductor which helps to regulate the output voltage to desired levels. The chip features over temperature protection, peak current mode control, current-mode logic (CML) control circuit, internal soft-start and delay, over-voltage protection, and adjustable switching frequency. The switching frequency can be adjusted from 200kHz to 3MHz to suit the requirements of the application.

Performance

The MAX8569AEUT+T is a high performance and high efficiency switching regulator with an advanced peak current mode control scheme. It supports an input voltage of up to 18V and an output voltage of up to 2.5V. It can deliver up to 1A of load current and has a high efficiency of up to 96%. Furthermore, the switching frequency can be adjusted from 200kHz to 3MHz to match the specific application. Additionally, the chip features high peak current mode control to provide better load current accuracy and stability. The chip also features a low quiescent current of 45μA, low input current of 10μA in shutdown mode, and a wide input voltage range of 3.15V to 18V.

Application Fields

The MAX8569AEUT+T is suitable for a wide variety of applications. It can be used in automotive and industrial systems as it can support high-voltage and high-current applications. Additionally, the device is also suitable for powering field-programmable gate arrays, microcontrollers, and digital logic circuits. The device can also be used in solar energy generation systems, battery-operated systems, and wireless charging systems.

Working Principle

The MAX8569AEUT+T works on the principle of peak current-mode control. In this mode, the device constantly monitors the peak current of the output voltage by closely monitoring the inductor current. This allows the device to maintain the output voltage level under a variety of conditions. The device uses an external voltage feedback loop to adjust the output voltage and an internal loop to control the peak current of the inductor. It also uses an external resistor for the current-limit setting and an external capacitor for the loop compensation. The device features an internal voltage error amplifier, thermal protection circuit, overcurrent protection circuit, and an over-voltage protection circuit for better over-all performance.

Conclusion

Maxim Integrated\'s MAX8569AEUT+T is a high performance and high efficiency step-down DC-DC converter with an advanced peak current mode control scheme. It can support input voltages of up to 18V and deliver up to 1A of load current. The device also includes a wide input voltage range of 3.15V to 18V, low input current of 10μA in shutdown mode, low quiescent current of 45μA, and adjustable frequency of 200kHz to 3MHz. The device is suitable for powering a variety of applications such as automotive and industrial systems, solar energy generation systems, battery-operated systems, and wireless charging systems.

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