BD9109FVM-LBTR Integrated Circuits (ICs)

Voltage - Input (Max):	5.5V
Supplier Device Package:	8-MSOP
Package / Case:	8-VSSOP, 8-MSOP (0.110", 2.80mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1MHz
Current - Output:	800mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Series:	--
Voltage - Input (Min):	4V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The BD9109FVM-LBTR is a DC/DC converter power management integrated circuit (PMIC) that provides a cost effective voltage conversion solution for a wide range of applications including consumer and industrial applications. It is a voltage regulator that switches current in high efficiency buck converters and low-profile regulators.In general, a DC/DC converter is used to convert voltage from one level to another, generally from a higher voltage to a lower voltage. DC/DC switching regulators are used in many applications to generate a DC output from a DC input. This is accomplished by using a power circuit that contains an inductor, capacitor and an active switching element. The BD9109FVM-LBTR contributes various advantages to the design such as simplicity, low power, excellent performance, fast switching, and small form factor.The BD9109FVM-LBTR works by creating cycles of high and low voltage to produce an output DC voltage. It integrates the high voltage MOSFET, control logic, and other components onto a single chip, eliminating the need for multiple components and reducing the size and complexity of the circuit design. The device is highly efficient, reducing power losses by using synchronous rectification technology and operating at high switching frequencies.In operation, the BD9109FVM-LBTR is powered by the input voltage, usually a DC voltage. The input voltage is converted to an alternating waveform of high and low voltage impulses by an oscillator circuit. These impulses are then used to control the opening and closing of the MOSFETs, which in turn regulates current flow through the inductor. The capacitor filters the output voltage and provides a steady voltage to the output.In summary, the BD9109FVM-LBTR is a DC/DC switching regulator that is used to convert input voltages to output voltages of a lower level. It is a cost effective voltage converter that has a low power consumption and an excellent performance. The device has numerous applications in consumer and industrial products owing to its small form factor and fast switching capabilities.

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