ADM8828ARTZ-REEL

Voltage - Output (Min/Fixed):	-Vin
Base Part Number:	ADM8828
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:	120kHz
Current - Output:	25mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Negative
Function:	Ratiometric
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to ADM8828ARTZ-REEL

The ADM8828ARTZ-REEL is a core voltage regulator integrated circuit (IC) from Analog Devices. It is a high-performance, low-cost single-package solution for power management applications and features excellent power efficiency and thermal performance. This IC is part of the family of DC-to-DC switching regulators from Analog Devices, which are designed for low external component count and superior dynamic performance. This IC is ideal for use in a broad range of applications, including power management and switching power supplies.

Application Field

The ADM8828ARTZ-REEL is a four-channel, full-featured switching regulator IC. It offers two output channels plus two independent, adjustable linear regulators. The four-channel power supply design allows for increased flexibility and power efficiency. This IC is well-suited for use in a wide range of applications, including notebook computers, industrial equipment, and cellular base stations.The most noteworthy feature of this IC is its power efficiency, with efficiencies up to 92% in a wide input voltage range. It also offers excellent thermal performance, which makes it ideal for applications with limited cooling capabilities. In addition, the device has a low external component count and superior dynamic performance, thus simplifying its integration into a wide range of systems.

Working Principle

The ADM8828ARTZ-REEL is based on a switching regulator topology, where power is transferred from an input circuit to its output using an integration of the concept of an oscillator. When powered up, the oscillator initiates an alternating current waveform, which is used to control the gate of a MOSFET switch, resulting in switching on/off repeating cycles. The switching action is used to transform the input voltage to the desired output voltage level.Under this topology, the MCU is responsible for controlling the oscillator’s frequency, which is then used to drive the gate of a MOSFET switch. This provides a high frequency switching waveform, allowing the design to be optimized for higher power supplies or a larger voltage range. In addition, the ADM8828ARTZ-REEL provides built-in protection against overloads and short circuits, along with active and passive current limiting.

Conclusion

The ADM8828ARTZ-REEL is a high-performance, low-cost, full-featured switching regulator IC from Analog Devices. It is ideal for power management applications, offering excellent thermal performance and power efficiency, along with a low external component count and superior dynamic performance. The device features a three-channel power supply design, based on a switching regulator topology, and provides protection against overloads and short circuits. The ADM8828ARTZ-REEL is thus the ideal choice for a wide range of applications, including notebook computers, industrial equipment, and cellular base stations.

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