IR3821AMTR1PBF

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	IR3821AMPBF
Supplier Device Package:	PQFN (5x6)
Package / Case:	15-PowerVQFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	300kHz
Current - Output:	9A
Voltage - Output (Max):	12V
Series:	SupIRBuck®
Voltage - Input (Max):	21V
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The IR3821AMTR1PBF is a single output, synchronous step-down, buck converter DC-to-DC switching regulator IC. This high efficiency, high frequency IC is capable of providing up to 30V of power from a 2.2V to 6V input. It is a part of the wide range of high performance and cost effective Power Management ICs (PMICs) from Infineon Technologies.

Application Fields

This versatile and highly efficient PMIC can be used for a variety of applications, ranging from low power to high current loads.The IR3821AMTR1PBF can be used to power FPGAs, ASICs, microprocessors, and memory modules in a wide range of computing systems. Its high efficiency makes it ideal for embedded system applications, such as handhelds, PDAs, and portable electronics, allowing them to be powered using the same power supply as a main processor or other core system components.The IR3821AMTR1PBF can also be used in automotive applications including car entertainment systems, GPS navigation systems, and vehicle power management systems. Its high efficiency and low heat dissipation can greatly reduce the power losses and heat generation inside cars, resulting in improved fuel economy and extended battery life.

Working Principle

The IR3821AMTR1PBF is a synchronous buck converter which consists of an internal high-speed power MOSFET switch and an internal low-side MOSFET switch. The high-side switch is operated by a pulse width modulated (PWM) control signal and drives the main transistor switch. The low-side switch is operated by a PWM control complemented to the one driving the main switch.When the high-side switch is closed (ON), the input current is supplied to the input side of the power inductor, while the low-side switch is open (OFF), thereby providing a path of conduction from the input to the output side of the inductor. When the high-side switch is opened (OFF), the energy stored in the inductor is transferred to the output capacitor, thus providing a regulated voltage output.

Conclusion

The IR3821AMTR1PBF is a high performance, cost effective DC-DC converter from Infineon Technologies. It is capable of providing up to 30V of power from a 2.2V to 6V input, and can be used for a variety of applications, ranging from embedded systems to automotive applications. Its synchronous buck converter circuit works by alternately charging and discharging a power inductor, which provides a regulated voltage at the output.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description