111-4189PBF

Voltage - Input (Max):	21V
Supplier Device Package:	34-QFN (5x7)
Package / Case:	34-PowerVFQFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	400kHz ~ 1.5MHz
Current - Output:	6A
Voltage - Output (Max):	18.38V
Voltage - Output (Min/Fixed):	0.5V
Series:	SupIRBuck®
Voltage - Input (Min):	1.2V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - Voltage Regulators - DC DC Switching Regulators

The 111-4189PBF, commonly referred to as DC-DC switching regulator, is an advanced application of the power management integrated circuit (PMIC). This device is capable of efficiently converting an input voltage of up to 36V to a relatively lower output voltage while maintaining a constant current level. This device is highly versatile and suitable for a wide range of installations including automotive, telecom, industrial and medical.DC-DC switching regulators, like the 111-4189PBF, make use of a variation on a buck-boost converter. A buck-boost converter is an arrangement of a buck converter and a boost converter, with the same switching frequency, where the switch mode voltage regulator combines both converter architectures. In a buck-boost converter, the output voltage is determined by switching the current at the output node of a DC power source at a specific frequency, with the duty cycle of the switch determining the output voltage.The 111-4189PBF has a typical operating frequency of 600KHz and a temperature range of -40 to 85°C. It offers high efficiency, low ripple and low noise performance in an integrated solution with use of optimized gate drivers and operation amplifiers. The device is capable of providing a steady output current of up to 3A with a single board, thus making it suitable for applications with requirement of up to 3A current.The 111-4189PBF is provided with a wide range of protection features such as over-voltage protection, over-current protection, under-voltage protection, and thermal protection. This advanced protection features protect the circuit from any damage due to overregulating or low input voltage. With an operating temperature range of -40 to 85°C, the 111-4189PBF can be used in an industrial environment and other temperature-sensitive applications.The 111-4189PBF comes with an advanced set of features that enable developers and engineers to quickly and easily deploy optimized power management solutions. The device integrates inductors and capacitors, which helps reduce the size and complexity of the design and simplifies the board layout. Additionally, the integrated inductors and capacitors provide the required ripple suppression for the system and ensuring an optimum power consumption.This DC-DC switching regulator is suitable for a variety of applications in the telecommunications, automotive, and industrial sectors. Its low profile, insulating features, low EMI/RFI, and advanced protection features make it a suitable fit for smaller systems. The device has also been tested, certified and approved as a safe, reliable and efficient power management solution for many modern systems.In summary, the 111-4189PBF is an advanced application of PMIC. This device implements a buck-boost converter architecture and offers a wide range of protection features, operating at a frequency of 600KHz. It has a temperature range of -40 to 85 °C and can provide up to 3A of current at the output. Its low power consumption, small board size, and low noise features make it suitable for applications in various industries, while its integrated inductor and capacitor help reduce the size of the design and provide optimal power performance.

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