MC34726BFCR2

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The MC34726BFCR2 is a single switch, non-synchronous buck DC-to-DC converter. This type of power management IC (PMIC) is a voltage regulator circuit that maintains a constant voltage by adjusting the output current according to the load. It is used in mobile devices, personal computers, LED drivers, and many other applications.

The MC34726BFCR2 is a single switch DC-to-DC converter that utilizes a fixed frequency, voltage mode controller with adjustable current limit and automatic load sharing. This PMIC features an integrated low side switch with 3-A current limit and shutdown. It has a minimum switching frequency of 200 kHz, adjustable output voltage from 0.55 V to 5.5 V, ±4.5% reference accuracy, 1.1 V current sense voltage (CS), over-temperature protection, and continuous conduction mode operation.

The DC-to-DC switching regulator IC supports input voltage ranging from 4.2 V to 14 V with a maximum output current of 3 A. It includes a slew-rate controlled, high-side MOSFET driver, allowing a maximum duty cycle of 93%. In addition, the device features a logical disable function that allows the output to be turned off when the LOGIC input is high.

The MC34726BFCR2’s working principle is to conserve power by implementing a switching regulator configuration that produces a constant output voltage from a varying input voltage. The IC contains both an input stage and output stage to manipulate the current. The input stage of the control circuit allows the switch’s voltage regulator to be adjusted to control the output voltage. The output stage contains a voltage-controlled oscillator (VCO) that is used to switch the current. The oscillation period of the VCO controls the duty cycle, which is directly proportional to the output voltage. As the input voltage changes, the MC34726BFCR2 will adjust the output voltage to maintain a constant output.

The MC34726BFCR2 is ideally suited for a broad range of applications that require high-efficiency DC-to-DC conversion. These include mobile phones, MP3 players, and other portable systems. Its adjustable current limit and automatic load share capability make it an excellent choice for powering multiple devices or powering one device with multiple outputs. It is also an ideal device for battery-powered systems that require energy savings and precise voltage control.

The MC34726BFCR2 is a PMIC that provides a variety of functions, including voltage regulation, current regulation, thermal protection and automatic load sharing. It is designed to work reliably with adjustable current limit, voltage accuracy, and fast response times. This DC-to-DC switching regulator is an ideal choice for mobile and other systems that require precise power management.

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