IXD3221A09AMR-G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Type:	Transistor Driver
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Number of Outputs:	1
Output Phases:	1
Voltage - Supply (Vcc/Vdd):	2.8 V ~ 16 V
Frequency - Switching:	1MHz
Duty Cycle (Max):	100%
Synchronous Rectifier:	No
Clock Sync:	No
Serial Interfaces:	--
Control Features:	Enable, Soft Start
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-25

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Introduction

The IXD3221A09AMR-G is a voltage regulator from Infineon\'s DC DC switching controller series. It is designed for use in products that rely on very accurate and efficient power conversion. It offers several features for reliable and safe operation, such as input and output overcurrent protection, undervoltage locking, adjustable output voltage, and integrated MOSFET for synchronous rectification. This device is ideal for applications that require extremely precise voltage regulation and very low power dissipation.

Application Field

The IXD3221A09AMR-G voltage regulator is specifically designed for use in embedded control and power applications. It can be used in any application that requires extremely accurate, reliable and efficient power conversion. Examples include energy management, industrial automation, and robotics. The device is also suitable for applications such as IoT, 5G and AI, due to its high level of integration, low power consumption and wide operating temperature range. Furthermore, the IXD3221A09AMR-G is able to provide seamless system level regulation, thus allowing for better energy efficiency.

Working Principle

The working principle of the IXD3221A09AMR-G is based on a Pulse Width Modulation (PWM) control scheme. This type of control involves using a control signal to dynamically control the duty cycle of the switching regulator. The input voltage is compared with a reference voltage which is set by the user using the built-in voltage adjust pin. When the input voltage is greater than the reference voltage, the duty cycle of the PWM signal is reduced, thus reducing the output voltage. Conversely, when the input voltage is lower than the reference voltage, the duty cycle is increased, thus increasing the output voltage. The IXD3221A09AMR-G also utilizes synchronous rectification to further improve efficiency. Synchronous rectification is a method of converting alternating current (AC) to direct current (DC) by using the MOSFET switch at the output of the regulator. By activating or deactivating the switch depending on the input voltage, it is possible to create a more efficient output voltage level that consumes less current.

Conclusion

The IXD3221A09AMR-G voltage regulator from Infineon is a highly integrated, efficient and accurate power conversion solution for embedded control and power applications. It is ideally suited for applications that require very precise voltage regulation, such as industrial automation, robotics, and IoT. Furthermore, the device features built-in voltage adjust and over-current protection, as well as integrated MOSFET for efficient synchronous rectification. All features, combined with the device\'s low power consumption and wide operating temperature range, make the IXD3221A09AMR-G an extremely reliable and efficient DC DC switching controller.

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