IR3899MTR1PBF Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	0.5V
Base Part Number:	IR3899MPBF
Supplier Device Package:	16-PQFN (4x5)
Package / Case:	16-PowerVQFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	300kHz ~ 1.5MHz
Current - Output:	9A
Voltage - Output (Max):	18.06V
Series:	SupIRBuck®
Voltage - Input (Max):	21V
Voltage - Input (Min):	1V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to IR3899MTR1PBF

The IR3899MTR1PBF is a DC DC Switching Regulator from the CP Family of ICs from International Rectifier. This IC offers a wide range of benefits and features which make it ideal for use in a variety of applications. The device is capable of regulating electrical current up to 10A and provides output voltages up to 48V with a maximum efficiency of 90%.

Applications of IR3899MTR1PBF

The IR3899MTR1PBF is mainly used as a power source in motor driver applications and other applications where efficient, high current voltage regulation is required. Its features make it ideal for use in applications such as motor control systems, motor drives, robotics, and other applications that require precision control and power efficiency.

Features of IR3899MTR1PBF

The IR3899MTR1PBF offers numerous features and benefits including:• High current capability up to 10A• Wide output voltage range up to 48V• High efficiency up to 90%• Low input voltage range from 5V to 40V• Internal synchronous rectifier• Multiple control schemes• Available in space-saving 5mmx5mm DSO-8 package• Lead-free and green compliant

Working Principle of IR3899MTR1PBF

The IR3899MTR1PBF operates on a synchronous buck topology and utilizes a regenerative switching voltage regulator circuit. The IC has an internal synchronous rectifier to reduce losses and offer higher efficiency. The integrated PWM regulates the output voltage in response to an external voltage reference and regulates the current according to the needs of the load. The IC also offers numerous built-in fault protection features such as Thermal Shutdown and Over Current Protection.The regulator offers multiple control schemes such as PWM, PFM, PowerGood and Dual Slope Soft Start Up. The PWM allows for greater control at higher frequencies whereas PFM allows for lower switching frequencies which would be beneficial to extend battery life and reduce overall power loss.

Conclusion

The IR3899MTR1PBF from International Rectifier is an ideal DC DC Switching Regulator for a wide range of applications that require precision control and efficient power transfer. The IC offers a high current capability of up to 10A and provides output voltages up to 48V with a maximum efficiency of 90%. Additionally, the IC integrates various features and protection mechanisms such as Thermal Shutdown and Over Current Protection. The integrated synchronous rectifier also helps to offer greater efficiency and helps to reduce power losses. The IC is available in a space-saving 5mmx5mm DSO-8 package and is lead-free and green compliant.

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