IR3622AMTRPBF

Frequency - Switching:	200kHz ~ 600kHz
Base Part Number:	IR3622AMPBF
Supplier Device Package:	32-MLPQ (5x5)
Package / Case:	32-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Current Limit, Enable, Frequency Control, Power Good, Sequencing, Soft Start, Tracking
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	Yes
Duty Cycle (Max):	84%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 14.5 V
Output Phases:	2
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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IR3622AMTRPBF Application Field and Working PrincipleThe IR3622AMTRPBF is a current-mode, PWM Buck Switching Controller designed to provide an efficient and simple means of regulating output voltages from a DC source. It is ideal for use in high efficiency and intermediate power applications, such as PC motherboards, servers, and portable equipment. This switching controller is a member of International Rectifier’s family of devices dedicated to DC/DC conversion design.This highly efficient and reliable switching regulator is designed to support a wide range of output voltage and current requirements, ranging from 0.6V to 3.6V and from 1.5A to 4.5A (Traditionally -10A with optional, external heat sinks). It supports all power topologies, including Buck, Boost, and Buck-Boost, providing reliable and accurate conversion of power from a DC source to an adjustable output voltage. It is provided in a 5x6mm PQFN package, with multiple customizable options available and no additional external components.The IR3622AMTRPBF is an advanced device that features a flexible current modulation architecture, boosting the performance of high-power, low-side and low-voltage (down to 0.6V) applications. It provides superior transient response and loop stability while maintaining high efficiency KPI performance. The device also offers configurable programmable power good (PGOOD) response and delay, precise output voltage regulation, adjustable switching frequency, active current-limit protection, and adjustable on-time.The current-mode PFM control block of the IR3622AMTRPBF provides high accuracy and fast transient response in output voltage regulation by controlling the timing of the power switch in the output stage. This control block is responsible for listening to voltage at the output and changing the switching frequency to ensure that the output voltage is always within the set range. It also facilitates the current limit control during short circuit conditions and over-current protection by providing accurate information about the current level at the output.In addition to its basic functionalities, the IR3622AMTRPBF also provides several additional features to make sure safe and reliable operation. The device offers a wide input voltage range (up to 110VDC) and over-temperature protection, protecting the product from excessive power dissipation in high-temperature applications. The device also incorporates a low-setoff option, minimizing the output voltage offset when the regulation loop is disabled, improving the overall efficiency performance.The combination of features of the IR3622AMTRPBF make it an ideal solution for applications ranging from low-voltage server and embedded power designs to data center and telecommunication systems. It can also be used in automotive, industrial, and medical applications, as well as any applications that require regulation of voltages from 0.6V to 3.6V. All of these features make the IR3622AMTRPBF a great choice for demanding energy-sensitive applications.

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