S-8521B44MC-AUDT2G

Voltage - Supply (Vcc/Vdd):	2.5 V ~ 16 V
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	100%
Frequency - Switching:	180kHz
Series:	--
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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S-8521B44MC-AUDT2G application field and working principlePMIC (Power Management IC) or Voltage Regulators are crucial components of a system’s electrical power supply. These regulators work to maintain a balanced flow of power from the source of its input voltage to the electrical components. DC-DC Switching Controllers are specific type of PMICs that act as a control unit in the power management system of a device.The S-8521B44MC-AUDT2G is a type of DC-DC Switching Controller manufactured by Renesas. This particular model is designed for use in a wide range of low-power, digital systems. Its main applications include embedded systems, point-of-load applications, digital home appliances, gaming systems, audio systems, industrial and medical systems, as well as automotive applications.As a DC-DC Switching Controller, the S-8521B44MC-AUDT2G is able to provide power regulation based on the fluctuating demands of its electrical components. This is especially useful for systems that are powered by multiple voltages, as the controller is capable of regulating each voltage independently.The S-8521B44MC-AUDT2G uses a synchronous rectified step-down switching conversion procedure to measure the output current in response to the load demand. Its integrated MOSFETs allow the controller to switch power at frequencies of up to 4.6MHz, with an efficiency of up to 92%. This makes it well suited for systems that require a dynamic set of voltages with minimal power dissipation.Moreover, the S-8521B44MC-AUDT2G has a range of advanced features to ensure optimal power efficiency and stability. It has a multiple pulse width modulation (PWM) capability that allows for smoother operation and higher efficiency by controlling the on and off periods of the PWM signal. The controller also has an adjustable voltage regulator that can be fine-tuned to a specific voltage output range. This allows for greater flexibility in power supply design.Additionally, the S-8521B44MC-AUDT2G has built-in protection features to help prevent potential power failures. These include overcurrent protection, overvoltage protection and thermal overload protection.To ensure superior performance in all its applications, the S-8521B44MC-AUDT2G is designed to be EMC compliant. This helps to reduce the risk of potential system malfunctions resulting from susceptibility to electromagnetic interference.In conclusion, the S-8521B44MC-AUDT2G is an advanced DC-DC Switching Controller designed by Renesas to meet the demands of low-power, digital systems. Its synchronous rectified switching conversion procedure and MOSFETs allow for power to be switched at high frequencies with minimal power dissipation. The S-8521B44MC-AUDT2G also has multiple features to ensure optimal power efficiency and stability. It is an ideal solution for all types of digital systems, from embedded systems to automotive applications.

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